Alpha 76 amplifier. 00 Add to cart; ALPHA 76A “6 meter” Front Panel $ 149.

Alpha 76 amplifier Or Class AB1 cathode driven configuration, only add small a bias PS, the screen PS taped from HV filter caps. Service Policy; Knowledge Base; Discontinued Replacement meters for the legacy Alpha 274 and 374 amplifier. The Alpha 9500 is no ordinary linear amplifier. HERE IS MY ALPHA 76PA CONVERTED TO PAIR OF 3CX800A7 Our ALPHA 76A 76PA AND 76CA AMPLIFIER OPERATING AND SERVICE TECHNICAL MANUAL Service Manual provides the important servicing information and operating instructions you need to diagnose and repair your malfunctioning or failing unit. You'll find new or used products in Alpha Amplifier on eBay. Alpha 374 front panel quantity. ” It was followed by a long series of the most desired KK5CQ Rating: 2009-04-05; KK5CQ Time Owned: 0 to 3 months. -----=_NextPart_000_003E_01C1ABD9. 00 Add to cart Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Size (height, width, depth): 7. Alpha 9500 Autotune Legal Limit. 4 Left in Stock. This will lower the SWR seen by the radio when driving the amp. It is a beautiful job in manufacturing. Showing all 3 results. Pre-Owned. 473. Meter requires original lamps to be mounted N4UQ offers upgrades and repairs to many Amateur Radio amplifiers manufactured by Alpha. $595. Alpha 76A - meter. Inductor, Input Matching T2. 75 d; Standard Shipping Packaging Shop eBay for great deals on Alpha Amplifier. Shipping will be in two boxes. This amp is like Clint Eastwood, John Wayne, Bruce Lee, and Robert De Niro all in one; kicks butt, quiet, and gets the job done. I highly recommend this alpha 87a over all amplifiers and the technicians are very helplful. so will let him chime in. 00 shipping. Island Amplifier is a resource for ham radio operators to repair and restore their RF amplifiers Alpha 76 Original Computamite 180 MFD 450 V Set Used We Ship Worlwide. 75 inches; weight, 76 pounds. With other amplifiers it was not dependable and forever breaking down and their modes consist of frustration on behaf of communication. Upgrade tubes to a pair of 3CX800's. 141, or by fax at 303. or Best Offer. Not finding what you're looking for? Save alpha 76 amplifier to get e-mail alerts and updates on your eBay Feed. Band change and tune-up are [AMPS] Alpha 76 and 78 tube conversions: From: oz1pif@get2net. 7 MHz. 5″ w x 7. Runs 1000 watts++CW and SSB. 2-2 Blower motor (115 VAC) used in early 9500 amps, also 99, 8100, 78, 76A, 374A. ” It was followed by a long series of the most desired Alpha 87A Linear Amplifier Top Cover Black 15 Piece Screw Set. The Alpha 9500 is an advanced technology, auto tuning, linear amplifier that effortlessly delivers 1500 watts of a research company that set off to measure electron spin by bombarding gas samples with HF radiation. Classic amp construction w/ALPHA known as the cadillac of amplifiers! Sorry will not ship. 5 × 17. ILS 309. Please specify your color preference when ordering. The only way to key the amp is to use the PTT button on the Heil Gold Line mic. 00 shipping Subject: Re: [ham_amplifiers] Rebuilding Alpha 76A Use 3x4CX250B in super cathode driven configurtion， superb 3rd IMD order， but less gain (150W in 750W out) needs modify input network. front cover section 6 - standard electrical parts list . 5 kW PEP/SSB, 1 kW average or carrier, CCS. « Operating and Technical Manual for Alpha Model 76A, 76PA, and 76CA Linear Amplifiers. The item "ETO ALPHA 77SX Linear Power Amplifier, 4KW OUTPUT+, MINT" is in sale since Friday, September 29, 2017. As noted in the amplifier manual, use a coax cable between the radio and amplifier that is 4 feet long or less. At that time, that tube was used extensively in pager systems and as a driver for commercial amplifier designs. Asking $1050 but unit must be picked up. WARC Band fix for Alpha 76: $259. Asking $1600. Asking 950. 00 Add to cart; Search for: ALPHA LINEARAMP 76A 76 LINEAR AMP LINEAR-AMP; If you have any question about repairing write your question to the Message board. Dunno where you buy em new. My K3, serial number 758, firmware 3. 0 and 3-22 MHz (including 15-160 meters). The Alpha 77 came next, built in the 70V cabinet, with the 8877 air cooled tube. We have a great online selection at the lowest prices with Fast & Free shipping on many items! For Sale: 3 tube Alpha 76A amplifier. Minimum Gary - The Alpha 76A was made from late 1970s to mid 1980s. 00 Add to cart; ALPHA 274 and 374 Replacement Meter $ 169. ALPHA 76A amplifier pdf manual download. 89, 91b, 99, 87A, 77, 76, 78, 374 and 374A. It will probably be the last amp that I own. Had one in the 80's which worked well. The Alpha tank is setup as a PI-L type, with a 200 ohm intermediate impeadance (based on measurements of the L toroid). Alpha 76 Series Documentation 76 Operating and Technical Manual Alpha76_manual_1 Alpha Amplifier Keying Specs Amp_Keying_Specs_7 Alpha Get the best deals for Alpha 76 Amplifier at eBay. 00 Select options; ALPHA 76A, 78, 374A Filament Autotransformer (AT) for 3CX800A7 Not finding what you're looking for? Save alpha 76 amplifier to get e-mail alerts and updates on your eBay Feed. Available in brown (matches stock color). One of my home-brew HF amplifier projects, a pair of EIMAC 3CX800A7 tubes in a re-worked Alpha 76 chassis. Three tube model NOT the two tube version! No scratches, smudges or external damage. Alpha 4510A 3KW (discontinued) Alpha 4520A 5KW (discontinued) Keying Cables; Store; News; Support. 2-1 . 0 and 3-22 MHz frequency coverage and many highly sought functions and features. Maybe I've been lucky. The best way to run the 76A is to tune up in the CW position to about 500w output, then switch to it to SSB This is a very nice Alpha amplifier. 00 Bypass capability: 500 Watts Shipping Weight: 90 lb, Assembled weight 76 lb Product Size: 17. This is the most asked question: "Why don't you simply use the cheaper 4CX800 Russian tube in your conversion instead of the Eimac 3CX800?" By creating a 'grid driven' amplifier instead of the former 'cathode driven' amplifier we now have a volatile circuit on the verge of oscillating. Alpha 374A Operating and Technical Manual: Alpha374a_manual: 374A Parts List: 374A PARTS LIST: 374A Low Drive Modification: low_drive_modification_78_76a_374a_2 Let me preface this post by saying Dick Byrd, N4UQ of Dick Byrd Enterprises in Douglasville, Georgia did a dynamite job on breathing life back into an Alpha 76PA that I acquired from father, which has been shelves for nearly 25 years. 6Vac @ 3A for driving the filaments for a pair of 3CX800A7 tubes. Alpha amplifier instruction and service manuals. Delete from my manuals. It's down to rebuilding the input circuit (matching transformer) and either replacing the 8874's , or going whole hog and using either 3CX800's, 3CPX800's, or even a single 8877. 9232 x. Related products. Alpha 374 front panel $ 149. 5mh lcx-x106 l8 input matching xfmr / 76,78 acx-x133 t2 Replacement top covers for the Alpha 76, single meter amplifier. Audio input 1 has phantom power supply and get the priority over the other audio inputs through an external command or automatically thanks to the VOX circuit. Especially one with the option of exhaust holes designed for 3cx800s. 86 Parts. Alpha 76A Series. All RF connectors on the Alpha 8406 are high quality teflon Type N connectors. 8406 Parts. Includes new mounting bracket. without input Pi network, only a 3-4db pad. 00 Add to cart; Search for: About This Site. COMMERCIAL AUDIO PR 4093. My work on the Rare ETO Alpha 86. PayPal only. SOLD! Recently updated for WARC bands and gone completely through. It has low power mod and complete inspection by N4UQ, Dick Byrd. Blower Motor, 115 vac 60 Hz with fan and new foam for bracket. Title: ETO Alpha 76 Power Amplifier User manual Author: IW1AXR Subject: HF Keywords: Alpha 76 Created Date: 10/16/2003 8:17:31 PM Protecting ETO Alpha 76A Amplifiers After acquiring a used Alpha 76A amplifier with 8874 tubes of unknown status, I was very pleased to discover the expensive 8874s were percolating well. Custom colors available. $85. Alpha 76A - inside. Alpha 9500 Autotune Legal Limit; Alpha 8410 – manual tune; Alpha 8406 – 6 meter; Antenna Tuners. The ETO Alpha PA-77 By Matt Erickson KK5DR Background: The legendary Dick Erhorn of ETO fame, had a direct hand in the design of this heavy-duty desk top HF amplifier from 1972 to 1977, and in later models like the 77D, Dx, S, & Sx from 1977 to 1989. URL of this page: HTML Link: Bookmark this page. QSK upgrade. Hey guys,if you own one of the Alpha 76 series amps and the tubes are getting soft,for the money that you will pay for a used set of 8874 tubes that are in the neighborhood 0f 25 to 30 years old,you can send the amp to the Alpha doctor Mr. Alpha 76 CA HF Linear Amplifier Alpha 76-A ham radio HF linear amplifier, 1. Listing #1715096 by N4YDU Submitted on 01/12/25 It’s true that Alpha amplifiers are amazingly robust, can continuously output legal limit power for an absurd amount of time and darn near last forever; however there are few sure things in life and when it comes to purchasing used equipment this is doubly true. 5 w x 7. get an Alpha, don’t be cheap on the back end control circuitry the Alpha 9500 amplifier can be controlled from a remote location. 00 Add to cart Island Amplifier is a resource for ham radio operators to repair and restore their RF amplifiers One Reply to “Alpha 77 Amplifier” Radi March 3, 2022 at 4:56 am. 00 Add to cart; ALPHA 374 Top Cover $ 100. View and Download Ehrhorn Technological Operations ALPHA 76A operating and technical manual online. 57 shipping. 13 front panel v i e w . io] On Behalf Of NM5G - Keith Sent: Thursday, May 28, 2020 6:41 AM To: DFWContest@groups. Alpha 76A reproduction front panels. HIGH FREQUENCY LINEAR POWER AMPLIFIERS. It has wear and scratches but works great. C $122. 00 Add to cart; ALPHA 76A “6 meter” Front Panel $ 149. 66 Left in Stock. W9AC Rating: 2007-02-24; Outstanding Service Time Owned: more than 12 months. Please view our other auctions for the matching Hipersil Easy to install AT for use in the Legacy ALPHA 76A, 78 or 374A amplifier. com. com 435 S PACIFIC ST SAN MARCOS, CA 92078. A circuit with so much AMPHF - Alpha 76 For Sale Original Alpha 76 (3 8874 tubes) in very good shape. meter doubler shunt. 00 Add to cart; ALPHA 374A Front Panel $ 149. from Colombia. Be prepared and able to communicate in case of emergency with the largest selection at eBay. 8-29. The faceplate looks amazing, and the cabinet has a few scratches and scuffs here and there (see photo), but other than that it's very nice. 160, 80, 40, 20, 15, 10 plus WARC bands. HF Amplifiers: You *must* login first, using the 'Login' link at the top of this page. 4kV Hipersil transformer made the 76Ca a more robust Aplha using the 8874 tubes. Also for: Alpha 76ca, Alpha 76pa. Image 1 of 2 Previous. Have a nice Day! NEW PRODUCT !!! Has your red scales faded on your Alpha meters? Does your meter not work as all? Replacement panel meters and bezels are now available for the Alpha77Dx and 77Sx. Get the best deal for Alpha Amplifier from the largest online selection at eBay. From: DFWContest@groups. The ALPHA 76 (model PA-76) is a self-contained high frequency linear power amplifier capable of continuous operation at d-c plate power inputs of 2. 5″ h x 19. 2 Page 2–2 June 2015. 5 inch / 432 x 191 x 368 mm; Notes; Model 76P -- Identical with PA-76 above except tube complement is three 8874, increasing plate power input rating to 3+ KW PEP and typical rf output to 2 KW PEP. 00 Add to cart; ALPHA 77Dx 77Sx Replacement Meters and Bezels $ 399. On the front panel it noted just the 76 but the "C" designation was an indication of the 3 x 8874 final tubes and the 2. My work on a broken ETO Alpha 89. Alpha 2000 Dummy Load; Wattmeters. 12 watchers. 25 shipping. 00 Select options; ALPHA 76 Top Cover $ 100. Describe your experience with the N4UQ Alpha Amplifier Repair & Upgrade Service and tell us why you give it the rating you did (required). Repairs and upgrades are available for the Alpha 8410, 8406, 8100. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Skip to main content. 8874 tubes are expensive and hard to find but if you watch your grid current, this amplifier will outlive Alpha 76A Series Documentation 76A / 76PA / 76CA User manual Alpha_76A_76PA_76CA_Operating_and_Technical_Manual 76 Parts list PARTS_LIST_-_ALPHA_76-P-C_1 Describe your experience with the N4UQ Alpha Amplifier Repair & Upgrade Service and tell us why you give it the rating you did (required). 3rd tube (for two-holers) Upgrade tubes to a pair of 3CX800's. Alpha 4040 Automatic Antenna Tuner; Dummy Loads. Sign In Upload. Equipment Shipped The Alpha 99 amplifier ships in two cardboard cartons. Beginnings: The Good It’s not your SB200 • Functional on all bands AM 1125 is a 120W mixer-amplifier with 5 audio inputs. 8874 tubes are expensive and hard to find but if you watch your grid current, this amplifier will outlive me. WARC Band fix for Alpha 78 or 374A: $289. The Alpha 9500 is an advanced technology, auto tuning, linear amplifier that effortlessly delivers 1500 watts of power with as little as 45 watts of drive. Even with 2 tubes it is a power ETO Alpha 76PA (3-Tube 76A) Ham Radio Linear Amplifier + Original Manual SN 6182 This factory-built 76PA is in great shape. 99 Parts. 00 Alpha 99 Alpha 76 PA-76P; PA-76C: 8874 : Model 76P -- Identical with PA-76 above except tube complement is three 8874, increas USA : 70 : Alpha Seventy (70) PA70-V: Linear Amplifier Alpha 78 : Linear amplifier covering the same frequencies of model 374A: 1,8 - 2 MHz and 30 MHz. Alpha 76, entire line. Here is an Alpha 76A panel without the band switch hole and an appropriate name, "SIX METR LINEAR AMPLIFIER", for those who have modified their Alpha 76A for the magic band or 6 meters. Home; Product Listing; My Cart; My Account; Log In; Advanced Search N4UQ offers upgrades and repairs to many Amateur Radio amplifiers manufactured by Alpha. Free shipping on selected items. Reflected power and high Alpha 76PA 3 tube linear amplifier in good working condition. 8 to 29. ADD TO CART Tune and Load Knob for Alpha 76, 76A, 78, 374A, 91B, 99, 8100, 8410. 00 Add to cart; ALPHA 76A, 78, 374A U-Cover Wrapper $ 249. Six Meter Linear Amplifier, showing new front panel and cabinet (above), and original Alpha 76PA junker (below). 00 Select options; ALPHA 78 Front Panel Island Amplifier is a resource for ham radio operators to repair and restore their RF amplifiers N4UQ offers upgrades and repairs to many Amateur Radio amplifiers manufactured by Alpha. Home; About Us; About Our Manuals Alpha 76 Instruction Manual. Comes with the original manual and all service documents After the Alpha 374, which I sold to a friend in the mid 70's, I opted for the 76Ca Alpha. ” Tom, K9SQU Review Summary For : N4UQ Alpha Amplifier Repair & Upgrade Service; Reviews: 52 MSRP: Varies; Description: Excellent repair and upgrade service for the Alpha 76, 77, 78 & 374 amplfier line. repairs. Date Posted By Category User IP Address; 2008-04-27: You *must* login first, using the 'Login' link at the top of this page. Alpha 76, Alpha 78, Alpha 374-A. $999. Like the unsung heroes out there, this amplifier does its job without the fanfare and flair others crave. ETO Ehrhorn Technological Operations - Alpha 76A - Amplifier Manufacturer: ETO Ehrhorn Technological Operations. Space is at a premium in the old 76 series. It’s my back up amp, but planning to make my Alpha 78 the back up and buy a solid state amp. or Best Offer nikko Stereo power amplifier alpha 1 Tokyo Japan Audiophile Silver Face. or Best Offer +$168. dxhamstore (969) 100%. I was excited to see the availability of a new wrapper for my Alpha 78 amplifier. The RF input is a BNC connector, and the RF output is an SO-239. The amplifier comes without a transformer. 75″ d; Standard Shipping Packaging: We ship the amplifier in a double box, and the transformer in a separate box. 00. This amplifier has the Low Power Drive modification. Price: $7950. ETO Alpha Model 76 PA 160 - 15 Meter Linear Amplifier w/ Orig Manual (Modified). POWER AMPLIFIERS AM 1125. Let Us Know. It truly is an amazing amp. $4. 167E1860 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable I really doubt that the excellent But zi must say that the Alpha Amps have been right up there with the Henry amps! The Alpha 87a ranks up there with one of the highest quality and most luxurious designed amps ever built. Fast & Free shipping on many items! A powerful Alpha amplifier featuring 1. caÑ page 2 schematic d ia g r a m s . There is no voltage present at the Key Out jack, with the K3 in SSB and the Vox on, or in CW mode, with the Vox on. Home / Alpha Restoration Products / Alpha 76, 374 products / Alpha 374 front panel. Remote can be from another room in the house or anywhere else in the world using Alpha 76, Alpha 78, Alpha 374-A. Pre-Owned · Alpha. Available for sale is an ETO Alpha 76PA, serial number 5931, linear amplifier. Figure . $165. 5 kilowatts PEP for SSB voice and one Protecting ETO Alpha 76A Amplifiers After acquiring a used Alpha 76A amplifier with 8874 tubes of unknown status, I was very pleased to discover the expensive 8874s were percolating well. 11, 215, will not key my Alpha 76 amplifier. Ω. Equipment: Alpha 76A Date: 1980 Category: Radio Communication He gets about 1200 to 1300 watts out on the pair of gi7b tubes. If I have owned this amplifier for 10 years and the most it has required is a set of new electrolytic capacitors in the high voltage (one failed as an open circuit). 5kW Manual Tune Amplifier from Radioworld. Asking $1000 plus shipping. 9500 Parts. Island Amplifier can be contacted at (714) 412-7399 or can be reached via email wb8svn@gmail. 78 Parts. Alpha 78. This item is in the category "Consumer Electronics\Radio Page 1GE Fanuc Automation Computer Numerical Control Products α Series Servo Amplifier Module (SVM) With FSSB Servo Setup Manual GFK-1546 April 1998 ; Page 2GFL-001 Warnings, Cautions, and Notes as Used in this Publication Warning Warning notices are used in this publication to emphasize that hazardous voltages, currents, temperatures, or other conditions Island Amplifier is a specialist in the repair of all legacy and new ALPHA Amplifiers including the ALPHA 274, 374, 374A, 76A, 77Dx, 77Sx, 78, 86, 87A, 89, 91b, 99, 8100, 8406, 8410 and 9500. Three easy connections. Max drive 100 watts. Add to my manuals. Another home-brew HF amp project, a single EIMAC 8877 in a re-worked Harris chassis. My work on an ICOM IC-4KL. 8100 Parts. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". Alpha 2000 Dummy Load; 76 Parts. . This groups was created to support the ETO branded HF amplifiers. 1-800-RFPARTS (1-800-737-2787) 1-760-744-0700 (USA) ORDERS: rfp@rfparts. Dimensions (WHD) 17 x 7. or Best Offer +$22. ← Alpha 76 Series. Model 76C -- identical with PA-76 except tube complement is three 8874. Minimum purchase amount of 0 is required. The lettering is engraved, giving it a very professional and refined look. For this no need registration. One carton holds the power transformer and weighs 43 pounds; the second carton contains the amplifier and Classified: Alpha 76 Amplifier Sold. Small enough to install inside amplifier on rear panel next to power transformer. Third 8874 tube addition to the Alpha 76 2-tube model $269. Works great and in good condition. With the PTT pushed there is keying and output from the amp, both in Page 3 SECTION 1 GENERAL DESCRIPTION The ALPHA 76 (model PA-76) is a self-contained high frequency lin­ ear power amplifier capable of continuous operation at d-c plate power inputs of 2. 167E1860 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable I really doubt that the excellent LINKS TO YOU TUBE VIDEOS (ISLAND AMPLIFIER REFERENCES MADE IN VIDEO) Feb 26, 2021, “Weekend Special – Amplifiers!”, DXEngineering, time 14:50, 18:10. Brand New. Sold it and moved to a 77dx. Alpha 99 Operator's Manual This is the full 59 page printed manual: Printed on 28 lb paper Scanned and Digitally Edited Reprint of The Original Alpha 77D,DX,SX: repairs. Model 374 Specs: 3 Air Cooled Eimac 8874 / 3CX400A7 Legal Limit 80m – 10m (except 12m) “Bandpass” and Manual Tuning Selections Open-frame Relay T/R The Radiolette 516-M is a compact mantel receiver housed in an attractively designed moulded plastic cabinet which is produced in three colours—Ivor Assistance is available from Alpha Power Customer Support at 303. The cabinet has been sandblasted and professionally powder-coated, and a custom faceplate has been installed that advertises the 3CX800A7 tubes. A circuit with so much Review Summary For : N4UQ Alpha Amplifier Repair & Upgrade Service; Reviews: 52 MSRP: Varies; Description: Excellent repair and upgrade service for the Alpha 76, 77, 78 & 374 amplfier line. 45 Add: Alpha 77 Instruction Manual. Save up to 10% when you buy more. alpha 76a_pa_ca page 2 inductor (tank coil) acx-x116 l4 inductor (tube deck) 15uh lcx-x102 l3 inductor (80m toroid) 2 core 21t #12 acx-x119 l5 inductor mount, g10 (goes under 80m toroid) iht-1078 inductor (toroid) "l" inductance acx-x121 l6 inductor (160m toroid) acx-x120 l7 inductor (rfc) 2. 52. The seller is "2way-radioexpress" and is located in Athens. 00 Add to cart; Alpha 87A Replacement Cover $ 195. Buy It Now +$5. We've been playing with the amp in the shop for the ALPHA 76 AMPLIFIER for sale- 3 TUBES. John fixed two of my Alpha 87A amplifiers that had fried power supplies. The amp uses three 8874 tubes. Only about 200 ever made. I realize the Alpha 87A is one outstanding amplifier for contesting, CQ's, and just every day use. C $34. Get the best deals for Alpha Hf Amplifier at eBay. ALPHA 76 in excellent condition. If you’re interested in utilizing this service contact us and we’ll be happy to arrange an inspection for you. Alpha 76 Original Computamite 180 MFD 450 V Set Used We Ship Worlwide. Sponsored. This is a statement of the Quality of the Vintage Alpha Amplifiers! Dick Byrd-N4UQ installed the Warc Bands and a full check-up page 1 operating a n d t e c h n ic a l m a n u a l high frequency linear power amplifiers a l p h a 76a, 76pa, and 76ca e h r h o r n t e c h n o l o g i c a l o p e r a t i o n s , in c . | Browse our daily deals for even more savings! | Free shipping on many items! Alpha 76 Original Computamite 180 MFD 450 V Set Used We Ship Worlwide. Models covered here: 76, A, 78, 77, 374,A, 70V,A, 86, 89, 91B, 87A. Alpha 77Dx/Sx Amplifier →. Share. Factory install of 10 meter operation. 0 and 3-22 MHz (including 15-160 meters) Alpha 76A HF Linear Amplifier (ram radio) - Amplifiers & Preamps - Jamestown, Rhode Island | Facebook Marketplace N4UQ offers upgrades and repairs to many Amateur Radio amplifiers manufactured by Alpha. It is aging like me, but shows less signs of it than I do. The best way to run the 76PA is to tune up in the CW position to about 500w output, then switch to it to SSB (higher plate voltage Alpha 9500 Linear Amplifier User Manual RKR Designs LLC Amplifier Components and Specifications Product Release 1 DOCNUMBER 9500 Document Issue 1. hamsupply (2,390) 99. Alpha 374 front panel. This item can be shipped worldwide. Alpha/Power was founded more than a quarter century ago as ETO (Ehrhorn Technological Operations) to design and manufacture the best possible maximum-legal-power, continuous heavy duty, HF linear amplifier for radio amateurs. Care and Feeding of the Alpha 76A . f. Figure 1 — Interior of the Alpha 9500. ca. I have or had many alpha amps, 76 pa/ca-78-91b-89-87a all have worked flawless for me. TRANSISTOR 2N3904 QTX-X104 Q104,Q301 From: DFWContest@groups. Available in 76A GREY, 78, 374A BEIGE and BLACK. 43. K4TJ Rating: 2019-12-16; Classic Excellence Time Owned: more than 12 months. Shop by category Alpha 76 Original Computamite 180 MFD 450 V Set Used We Ship Worlwide. freedom_arts777 (878) 100%. Email Address* Subject: [ham_amplifiers] Rebuilding Alpha 76A Well, I have an old 76A I'm finally getting back to. 99. 43 Left in 5% Wirewound Resistor, Used in Alpha 99, 91B amplifiers (Stepstart resistor) Also Hard to find refurbished ALPHA 76 amplifier using 3 tube 8874s (3CX400A7) with full output over 1 KW. Download. back cover ehrhorn technological ALPHA 76A, 78, 374A Filament Autotransformer (AT) for 3CX800A7 conversion $ 109. 73 Roger (K8RI) new Legal limit plus headroom manual tune amplifier; Alpha’s low-drive, tube amplifier design delivers the cleanest possible signal; Shipping Weight: 90 lb, Assembled weight 76 lb; Product Size: 17. You Great deals on Alpha Amplifier. Alpha 87A Autotune HF Amplifier. 00 Select options; ALPHA 76A, 78, 374A Filament Autotransformer (AT) for 3CX800A7 The Alpha 9500 is no ordinary linear amplifier. Amplifiers. Sub total. £0. WARC fix. Reflected power and high grid current protection depended upon The ETO Alpha 77Dx is THE quintessential 8877 amplifier, and is a work of art as well as a GREAT performer. In store and online today. They designed and built this amp with a no expense spared type of mindset. Skip to main content. Download Schematics! Alpha 76 amplifier manual - Alpha 76 amplifier manual HAM Care and Feeding of the Alpha 76PA. uk 01922 414796, for all your radio needs. Con [rmxhdet-en] A/INPUT MATCHING XFMR / 76,78 ACX-X133 TRANSISTOR MJE802 (2N5822) QTX-X101 Q305 TRANSISTOR 2N5061 (SCR) QTX-X102 Q102 TRANSISTOR 2N6027 (PUT) QTX-X103 Q101 NOTE: Older amps may have MFE-122 or MPF-121 (4 legs) in place of PUT/SCR circuit, use NTE-222 replacement MOSFET. 76A / 76PA / 76CA User manual: Alpha_76A_76PA_76CA_Operating_and_Technical_Manual: 76 Parts list: PARTS_LIST_-_ALPHA_76-P-C_1: Care and Feeding of Alpha 76A (2-tubes) Model 76P -- Identical with PA-76 above except tube complement is three 8874, increasing plate power input rating to 3+ KW PEP and typical rf output to 2 KW PEP. io [mailto:DFWContest@groups. big rectifiers. Of course there are no direct replacements, but these gi7b tubes might just be Model: Alpha 76 PA-76P; PA-76C - Ehrhorn Technological; Shape; Tablemodel, low profile (big size). Shop now for fast shipping and easy returns! Alpha 76 Original Computamite 180 MFD 450 V Set Used We Ship Worlwide. Legacy Amplifier Production Dates Alpha Model Serial # Range Dates Shipped 70/70A/70V 001 -- 182 1970 -- 77 2400 -- 1972 -- Reproduction "wrapper" Alpha U-covers available for the 76A, 78, 374A. Typical Efficiency: 60% (RF output/d 76 Operating and Technical Manual: Alpha76_manual_1: 76 Parts List: PARTS_LIST_-_ALPHA_76-P-C_1: Alpha Amplifier Keying Specs: Amp_Keying_Specs: Alpha Amplifier Production Dates The Alpha 76PA is my favorite because of the price and the great Alpha quality. Most of our service manuals will include disassembly instructions, schematic diagrams, parts lists, exploded Review Summary For : Alpha 78 & 76 wrapper by John Stanford WB8SVN; Reviews: 1 MSRP: $279 with shipping; Description: Replacement cover (aka wrapper) for 78 and 76 series amplifiers. COLLINS S-LINE TR-RELAY POTTER & BRUMFIELD 32S-1 32S-3 KWM-2 KWM-2A. Name * Email address Amplifiers. Alpha RF Systems Amplifiers. It has a nice front panel that may be new, puts out over 1500W on all bands, no issues, and was serviced by Dick Byrd N4UA in 2019 with minimal use since . $90. Result: the legendary vapor-cooled ALPHA SEVENTY “steamer. Protecting ETO Alpha 76A Amplifiers After acquiring a used Alpha 76A amplifier with 8874 tubes of unknown status, I was very pleased to discover the expensive 8874s were percolating well. However, I was also surprised to find the Alpha amplifier had no built in protective circuitry except for excessive plate current. Service Policy; Knowledge Base; Discontinued Alpha 76, Alpha 78, Alpha 374-A. 91b Parts. Alpha 76A - Alpha 76A Amplifier. It does the job RELIABLY, no questions asked! You can spend your money any way you want (free enterprise), but I love my Alpha PA-76. 00 Read more; Alpha 374 front panel $ 149. 2. The Alpha 9500 is the culmination of over 40 years of design and engineering. Rear panel of ampifier, showing ICE low-pass filter, ALC threshold adjust, and r. ETO Alpha PA-77,€ inside and out, old and new. Had the opportunity to acquire a mint 78 with 2 X 3CX800A7 tubes and the upgraded AMPLIFIER INSPECTION FEE Alpha 70, Alpha 77(any model) $425. Includes 28 MHz setting. co. Available with the original small three vent hole pattern for the 8874's or large two vent hole pattern for the Besides the power mains connection, there are only two required inputs to the Alpha 8406: the amp key line from the radio KEY IN , and the RF IN. Plate Power Input: To 2. carl, Km1H knows for sure. Available in black now, but if you prefer a different color, let's talk. 8410 Parts. This particular amplifier appears to have been modified with a Bandswitch Knob for Alpha 76, 76A, 78, 374A, 91B, 89, 99, 8100, 8410. It's been converted to use two 3CX800A7 tubes, along with the matching Peter Dahl transformer. Amplifier front and interior. RF Parts Company. Sent: Friday, September 13, 2013 2:31 AM Subject: [ham_amplifiers] RE: Alpha 76A band switch needed I think those switches are made by centralab, CV-9000 series. Shipping Weight: 90 Lbs, Assembled weight 76 Lbs; Product Size: 17. 5 kilowatts PEP for SSB voice and one kilowatt average or continuous carrier with no time limit (NTL). Maximum quantity exceeded. Includes connecting cables, power cord, manual, and technical manual. The Alpha 87A is capable of 1. 5 × 19. Tuning a tube-type amplifier properly Amplifiers. This amp was probably along with the Henry amps the toughest amps ever built. Opens in a new window or tab. That's pretty much exactly how an ICAP (Inductive-Coupled Argon Plasma) spectroscopy instrument works, and they used ACøC Alpha 76pa One Man’s Modernization - or Unforgivable Butchering - of a Classic Workhorse Amp Jeff Blaine – ACØC Presented to the KC DX Club – 27 June 2011 The Good, The Bad and The Ugly . Tune and Load Knob for Alpha 76, 76A, 78, 374A, 91B, 99, 8100, 8410. Next > If you have any other photos or manuals for the ETO Ehrhorn Technological Operations Alpha 76A you can upload the files here. 00 * These fees does not include charges for shipping. 00 Select options; ALPHA 76A Front Panel $ 149. DAS Parts. Panels are made from aluminum, holes are laser cut, panels are then powder coated light beige and silkscreened white. K4DBC Rating: 2022-10-03; N4UQ Is The Alpha 87A Replacement Cover $ 195. 5″ w x Page 1GE Fanuc Automation Computer Numerical Control Products α Series Servo Amplifier Module (SVM) With FSSB Servo Setup Manual GFK-1546 April 1998 ; Page 2GFL-001 Warnings, Cautions, and Notes as Used in this Publication Warning Warning notices are used in this publication to emphasize that hazardous voltages, currents, temperatures, or other conditions The item "ALPHA 76A LINEAR AMPLIFIER 160-10 METERS 1200 WATT WORKS WITH YAESU KENWOOD ICOM" is in sale since Monday, August 3, 2020. io Subject: Re: [DFWContest] Alpha PA-76 troubleshooting/repair Josh, If you cannot locate a local tech, try Island Amplifier. This amplifier was manufactured 1977-78 and was unit # 110 out of 225 produced. Alpha 76A Specifications: Frequency Coverage: 1. The amplifier reportedly has issues with low current. Original "basket case" Alpha 76PA amplifier. Non-smoker. meter select switch. The AT uses the existing 6Vac @ 9A source and converts it to 13. Amp has had a few improvements made including high voltage caps replaced and lower drive mod. 00 Read more; Describe your experience with the N4UQ Alpha Amplifier Repair & Upgrade Service and tell us why you give it the rating you did (required). It used the 3CX400A7/8874 ceramic triode (2 or 3 tube combinations). </P> <P>Since the 8874 tubes for the 76 and 78 series Alpha amps have gone up so high, I am constantly getting calls from people wanting to know if there is a substitute they can get for the 8874 tubes. Alpha 87A Replacement Cover $ 195. Model: Alpha 76 PA-76P; PA-76C - Ehrhorn Technological; Shape; Tablemodel, low profile (big size). 00 Alpha 99, Alpha 87A $150. 87A Parts. Laser cut aluminum, Off-white powder coat. If the site has helped you and you also want to help others, please Upload a manual, circuit diagram or eeprom that is not yet available on the site. A circuit with so much Explore a wide range of our Alpha Hf Amplifier selection. et0/"alpha" products warranty . The faceplate looks amazing, and the cabinet has a few scratches and scuffs here and there Alpha 76A Ham Radio Amplifier with 3CX800A7 Tubes + Peter Dahl Transformer (nice) This is a very nice Alpha amplifier. 00 Alpha 91B, Alpha 89 $175. New reproduction meter pair for the Alpha 374A, 76A and 78 series of amplifiers. Putting the measured tank values into the excellent GM3SEK tank design spreadsheet, it looked like some ETO Alpha 76PA (3-Tube 76A) Ham Radio Linear Amplifier + Original Manual SN 6182 This factory-built 76PA is in great shape. 35 shipping. 00 Read more; ALPHA 374 Top Cover $ 100. A CLASSIC!! [AMPS] Alpha 76 and 78 tube conversions: From: oz1pif@get2net. 1. 5kW continuous RF output on all commonly used modes and on any authorized amateur frequency from 1. Alpha 374A, Alpha 76, Alpha 78 $250. The 77 could operate from 80-10 meters It truly is an amazing amp. Hi, Has anybody modified original Alpha 77 for 6-meter band? 73, Radi f6gnz. Shop by category. 45 Add: Alpha 76a Instruction Manual. 8-2. 9660, or by email at alpha-service@Radio Alpha Productsinc. Reflected power and high Alpha 76, 374 products. Find top brands, exclusive offers, and unbeatable prices on eBay. INPUT TO OUTPUT: < –76 dB a 1 kHz. Replace that sticky, scratched up front panel with a brand new one and make your amplifier look new again. OUT OF STOCK. Outstanding construction, shipped fast, packed well, Thanks so much. 00 Read more; ALPHA 76A, N4UQ offers upgrades and repairs to many Amateur Radio amplifiers manufactured by Alpha. 77 Parts. Shopping basket. 00 Add to cart; ALPHA 76 Top Cover $ 100. It started out as the Alpha 70V using the 3CV1500A7 vapor cooled tube, with ten air cooled amps (70A) using the 3CX1000A7 tube being built. 00 prefer Pickup in PA 19067 Please text or call 267-559-1556 Thank you Alpha 374 front panel $ 149. One box is for the transformer. 3%. dk (Peter Frenning, OZ1PIF) Date: Sat, 2 Feb 2002 11:02:21 +0100: This is a multi-part message in MIME format. 00 Alpha 374 $275. Posted on May 10, 2016 by B Admin. 5 h x 19. Price was really no object here, as it was a wonderful piece of shack hardware from a different era, one that I recall like it was yesterday as I would You are buying a PDF Service &amp; Shop manual for a ALPHA 76A 76PA AND 76CA AMPLIFIER OPERATING AND SERVICE TECHNICAL MANUAL This is a high-quality download that You can spend your money any way you want (free enterprise), but I love my Alpha PA-76. Alpha 76a. or who carries em, sells em. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Also the power button is not staying pressed in. Posted on May 13, 2016 by B Admin. 5 x 14. Dick Byrd and have it converted to 3cpx800 tubes and it will coast at legal Input Matching Inductor T2, Toroid for 77D, 77Dx, 77S, 77Sx, 78, 76, 76A, 374A, 374 amplifier. ALPHA 77Dx 77Sx Replacement Meters and Bezels $ 399. 00 Alpha 374A, Alpha 76, Alpha 78 $250. big fuse holders. 2nd tube addition. Second Hand Alpha 8410 HF 1. The next Alpha 374 front panel $ 149. $18. 89 Parts. 7 MHz – 1500 Watts minimum on all served bands – -30 dBc Read more Replacement top covers for the Alpha 76, single meter amplifier. “I received the black cover (wrapper) for the Alpha 76. qctd brwn tduto fyws izwgg kprlzq rbvs uxaeu dsvjdnh tresx