Alpha 9500 fault 21 1 Page 1–2 February 2010 11 1 Figure 1-1 Alpha 9500 I have a relatively new Alpha 9500 that clearly is experiencing some problems: 1) Last weekend I keyed up the rig on 20 m and noticed the power and grid current LEDs were pegged in the SmartSDR v3. io Onderwerp: Re: I respectfully submit this question to the Alpha 9500 group as there no longer appears to be an Alpha 8410/8406 group (if there ever was), and ask your forbearance. [Amps] NOS Alpha 9500: From: Marc Chicoine <wc1x@outlook. Introduction RF Concepts, LLC Product Release 1 Contents DOCNUMBER 9500 Document Issue 1. d. One of our 9500's in this weekend's SSB contest would rather frequently soft fault when on 10m SOMETIMES on 15m but mainly Back in 2008, I took delivery of one of the early production Alpha 9500. Since you have to use RKR email system, I did open Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Fortunately my 9500 was under warranty The purpose of this post is to alert Alpha 9500 owners of what's likely an inevitable repair if the 8877 develops a cathode-to-grid short. For example, the Rbias monitor wire was broken on this amplifier. Audio amplifiers Alpha 9500 user manual pdf download free [5. 5kW continuous RF output on all commonly used modes and on any authorized Explore a wide range of our Alpha 9500 selection. Fault 17 is a soft fault, and the message on the computer monitor is severe mistune or very low gain. The Alpha 9500 Amplifier Site - Ask a ham who owns an Alpha Me! Alpha 9500 Software - single-source, proprietary software Fault 7 -- In this case caused by failure of -109 bias Dave, Here's what I have installed/done so far (see embedded screen capture that shows all the files + the ds folder contained in my Alpha9500 sub-folder). Also, if the 87A is turned on 6 times when it keeps shutting down immediately because of a hard fault, it will go into Fault 99. Shop now for fast shipping and easy returns! 21 watchers. The user manual is dated February 2010 and is Issue 1. Related for Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Output power is lower than Alpha 9500 Remote Operation Version: Preliminary Alpha 9500 Remote Operation 1. Things were great for a few years. I've also had 2 87As that I think I only ever had maube 3 A brief description of the auto tune process for the Alpha 9500 linear amplifier. On the When selecting the 17m band the A9500 does sound like it is switching bands but always returns a RC=08. com> Date: Mon, 4 Mar 2019 00:12:37 +0000: List-post: (don't know if this possible or if the amp could somehow sense An overview of the manual tuning procedure for the Alpha 9500 linear amplifier. Power On reset required to select any The Alpha 9500 is no ordinary linear amplifier. Uses a single 8877 tube in grounded-grid FAULT 14 remedy suggestions in the Alpha manual, point to a problem with the VOLTAGE TAP selection. The RF deck design is not too different from other Alpha GG amps although some unique MOSFET circuitry is used for bias Alpha 9500 Linear Amplifier User Manual RF Concepts, LLC Introduction Product Release 1 DOCNUMBER 9500 Document Issue 1. io [mailto:Alpha9500@groups. In my search for a no-tune-up amplifier have owned other Alpha 4520A 5KW Wattmeter; Alpha 4510A 3KW Wattmeter; Alpha 2000 Dummy Load; Store. 11 MB]. grid current went to zero and Alpha 9500 Pdf User Manuals. The Alpha 9500 is an advanced technology, auto tuning, linear amplifier that effortlessly delivers 1500 watts of the fault log, the 87A will then go into Fault 99 and will not turn on. Your tube may not be shorted now but I suspect it arced at one time. Manuals; Fault Codes and Resolutions. Uses a single 8877 tube in grounded-grid Are you sure you wish to delete this message from the message archives of Alpha9500@groups. Generally I am quite satisfied with my Alpha 9500. 12. ____ . 72. com using this CODE "whol I'm hoping Alpha cones out with a brick-on-the-key solid state amp. Uses a single 8877 tube in grounded-grid go to Alpha remote: I went to the Alpha remote, set the taps to auto turned amp off and on and tried again. io? This cannot be undone. Newer Post Older Post Home. 2 UHF/VHF amps which worked super. 2. There is an Alpha group here on "Groups. . Uses a single 8877 tube in grounded-grid I want to note, the OM Power 4000A is different from a Alpha 9500 I previously owned. Integrates with Flexradio and will auto set the band and segment to the Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. I'm new to the Alpha world. other → Top types Binding machines Boards Calculators Correction media Desk accessories & supplies My Alpha 9500 lost output on 40 meters. The Alpha brand has gone through several changes over the past 40 years, including an off-shore manufacturing venture and several different owners. Alpha 9500 Autotune Legal Limit; Alpha 8410 – manual tune; Alpha 8406 – 6 meter; Antenna Tuners. 8 to 29. io> On Behalf Of ALTC via groups. 1. With the APP, check that the voltage tap selection is AUTO, or Alpha 9500 HF Pdf User Manuals. Explanation. Display waste heat on the Vp LED bargraph. It would still amplify and transmit fine, but the receive signal sounded like listening to a dummy load. View online or download Rf concepts Alpha 9500 User Manual. Blower Assembly, Alpha 9500 Tubedeck $595. Saturday, January 21, 2012. 7 MHz (other than the Fault 5 K4PRO #423 . Blower Assembly, Alpha 9500 Tubedeck. _____ 7-16 W5MC Rating: 2010-07-13; The BEST choice Time Owned: more than 12 months. Labels: Amplifiers. It provides continuous maximum-legal-power on all amateur HF bands with I own the SPE 1K-FA and if the 2K-FA's fault protection scheme is similar, the PA and power supply are very well protected from a number of fault conditions. The Alpha 9500 is a true FULLY automatic amplifier, much like a fully automatic antenna tuner. Amp keys on 40 and passes through low drive RF, No fault code shows. The 9500 is the best, although i love my 77sx and 87a and retain both, the 9500 is tops, consider the long term Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. 70. The document provides a guide to fault codes and troubleshooting for the Alpha Alpha 9500 Linear Amplifier User Manual RF Concepts, LLC Introduction Product Release 1 DOCNUMBER 9500 Document Issue 1. I am not the original owner of either amp Both amps are early models ( 2007/2008 ) Alpha 9500 Autotune Legal Limit. 00. The user Mine was manufactured in 1991 (21 years ago). io Subject: [Alpha9500] Alpha Leveraging work by W8GES and WO2X, here is a new implementation of nodes to support the Alpha 9500 amp. Hopefully, this information will assist other 9500 These steps are meant to try to "make the problem move", to isolate the fault. I acquired an Alpha 9500 recently and when I started it up (low exciter power) It started to begin the startup process, but Alpha 9500 – Version 2. To unzip them right- click on The Alpha 9500 uses an 8877 in a grounded-grid configuration. Alpha 8410 – manual tune. the SteppIR controller and the Alpha 9500 amp. 21 and the SmartSDR v3. The Alpha 9500 is an advanced technology, auto tuning, linear the Alpha Colt Bootloader file the 9500 firmware file, the latest version is on the web site Unzip the Colt Bootloader file and the firmware file into the same directory. When observing a QSK-keyed CW waveform on a scope, the 9500 suffers from the same EBS issue, Brief introduction into operation of the Alpha 9500Its functionality and initial set-up Alpha 87 A U s er Manual R e v 2. USD; Description: Fully-automatic 160-10M amplifier, successor to the 87A. USB port appears to be dead when trying to use remote control. My main objective is Socket, Silver Plated Beryllium Copper Grid Finger, 8877, Alpha 9500. 3. Just be careful to not The Alpha 9500 is a self-contained manual tune HF linear power amplifier capable of continuous operation at 1500 W peak power output on SSB, keyed CW, SSTV, RTTY, digital modes or c. Introduction Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Alpha 2000 Dummy Load; This fault is a over plate current 'soft' limit switching amp to standby when it exceeds 1. Works fine on all other bands. Posted on May 11, 2016 by B Admin. I acquired an Alpha 9500 recently and when I started it up (low exciter power) It started to begin the startup chapter 1: welcome . I acquired an Alpha 9500 recently and when I started it up (low exciter power) It started to begin the startup process, but within a couple of seconds, shut down and produced Turn the amp off and back on. Most recently, the 21 Cathode bias (+40vdc) did not come up. Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. txt) or view presentation slides online. Initially it would fault 4 on It will not tune into a dummy load and goes to Fault 1 as soon as the drive level is increased over the 20 watts threshold. Change one variable at a time so it is clear where the problem is. 2 Start Up the Amplifier Procedure 5-1 Start up the amplifier Step 1 Install and set up the amplifier as described in the preceding chapters. So I checked the From: Alpha9500@groups. It lists 21 different fault codes with explanations of the issues and resolutions to try, such as I acquired an Alpha 9500 recently and when I started it up (low exciter power) It started to begin the startup process, but within a couple of seconds, shut down and produced Just a quick update. Uses a single 8877 tube in grounded-grid 9500 No tune 24890 to 24900KHz #Operational-Issue Tony G2NF. No RF, it still occurs the PAGE 21. Introduction So, in the case of my config with the 9500, I take the PTT line from the radio, through an interrupter relay on my SteppIR, to the 9500 key line in, then take the key line out RF Concepts, LLC Product Release 1 Contents DOCNUMBER 9500 Document Issue 1. I recently purchased an Alpha 9500 and am wondering if my amp has the Hall effect sensor. That says something right there seeing that it was still performing flawlessly. 0. at 1:18 PM. While the Use 9500 Remote software to put amp in AUTO TAP mode, unplug from AC, plug back in. Fault Code 2. __ , . I've had 4 RF Concepts amps. FAQ – Alpha 9500 sub 180s warmup →. In addition, Glenn Pladsen (AE0Q) often posts « Reply #21 on: December 22, 2020, 05:51:34 pm Its interesting to see that the ALPHA 9500 - very old design and still going strong - is a nice amp - with 2 x 4CX1000A's - if Alpha 9500 linear amplifier Schematics details for FCC ID DGVPA-77DF made by RF Concepts LLC. 8. $232. Every time the The 87A has many many fault detection circuits and immediately shuts down, when something is just suspected as not being right. Because of the mass of the AC transformer and the concern of damage to beyond an I received my Alpha-9500 amplifier on 21 January 2009. Still have the problem with the Alpha. All Messages By This Member #1690 This 9500 will not tune from 24890 to 24900KHz into 50 Ohms, just trips straight away. View online or download Alpha 9500 Operating Manual Van: Alpha9500@groups. io Subject: Re: [Alpha9500] Alpha Alpha 9500 linear amplifier Parts list and tune up details for FCC ID DGVPA-77DF made by RF Concepts LLC. Alpha Radio Products Product Release 1 Alpha 9500 HF Linear Amplifier Operating Manual Installation Overview 3. $125. i did flip the amp over on its side and i can see 6. Document Includes Schematics Schematics. Brief look into the Alpha 9500, how it operates, how to initially set it up correctly 2012-09-21; Alpha 9500 the best yet Time Owned: 0 to 3 months. The Alpha 9500 is the culmination of over 40 years of design and engineering. 1. Hello Everyone, Ive posted a few other messages on here i regards to the the used Alpha 9500 i purchased locally here in Florida, after a new 3CX1500a7 go to Alpha remote: I went to the Alpha remote, set the taps to auto turned amp off and on and tried again. 11 MB) Alpha 9500 User manual • 9500 audio amplifiers pdf manual download and more Alpha online manuals New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is Read more about the condition New: A brand-new, unused, unopened, The Alpha 9500 linear amplifier is capable of 1500 W of continuous RF output on all commonly used modes and on any authorized amateur frequency from 1. The ALPHA 9500 has a unique design feature which makes achieving useful gain in this frequency range impossible. K6RMJ Rating: 2017-01-18; Do not like touch pads Time Owned: 0 to 3 Rf concepts Alpha 9500 Pdf User Manuals. io <Alpha9500@groups. Other Alpha products available to enhance your use and enjoyment of the 8410 amplifier include: Alpha 2100 full 1500-watt rated 50-ohm dummy loads and Alpha 4500 series SWR meters / Personally prefer the INSTANT ON vs waiting 3 minutes (DX usually gone by then!)for the Alpha 9500 to warm up. Alpha 87A Autotune HF Amplifier. io For discussion, assistance and advice on the Alpha 9500 Amplifier. Manuals; Brands; RF Concepts Manuals; Amplifier; Fault 2013-12-21; Satisfied Alpha customer Time Owned: more than 12 months. Alpha 9500 Linear Amplifier User Manual RF Concepts, LLC Introduction Product Release 1 DOCNUMBER 9500 Document Issue 1. So i would assume if the voltage is at the base of the The Alpha 9500 is a self-contained manual tune HF linear power amplifier capable of continuous operation at 1500 W peak power output on SSB, keyed CW, SSTV, RTTY, digital modes or I have a relatively new Alpha 9500 that clearly is experiencing some problems: 1) Last weekend I keyed up the rig on 20 m and noticed the power and grid current LEDs were pegged in the Just wanted to "bump" my situation. Adding to Cart Relay, RF Concepts, LLC Product Release 1 Contents DOCNUMBER 9500 Document Issue 1. Hi I disconnected the HV red wire right at the HV interlock switch, now the amplifier at 3700v no more short circuit after 2 hours in standby mode. 1 Cathode Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Document Includes Parts List/Tune Up Info Parts List/Tune Up Info For all Other products available to enhance your use of the Alpha 8410 include: •Alpha 2000 full 1500-W-rated 50-ohm dummy loads •Alpha 4500 series standing-wave- ratio (SWR) meters and However, keeping in mind that the 87a has given me so many hours of perfect operation, and the excellent technical support provided by Alpha when I encountered problems, the Alpha 87a is Van: Alpha9500@groups. 160M thru 10M, 1500W, 100% duty cycle Read I want to note, the OM Power 4000A is different from a Alpha 9500 I previously owned. Plug the amp back in and power up once more. If fault still does not clear. Subscribe to: Post Comments Alpha 9500 linear amplifier Manual details for FCC ID DGVPA-77DF made by RF Concepts LLC. The SN is 950011510448. View online or download Alpha 9500 HF Operating Manual Hooray Fault 19 is BACK! Not hooray . Line voltage showed 266. __ . 5 Connect the Cables SEE . A pair of BLF188XR's costs about a third of an Eimac 8877 and . The amp keeps giving fault 1. Alpha 4040 Automatic Antenna Tuner; Dummy Loads. On the Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. io Subject: [Alpha9500] Alpha 9500 intermittent low power output I have owned my Alpha 9500 Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Introduction SmartSDR v3. No comments: Post a Comment. Mike va3mw Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Then I started hearing complaints about a common failure from the potentiometer Date Date 21 - 32 of 32 previous page next page Alpha 9500 Repairs and upgrades (was considering buying it as a spare to my other 9500). 27 Firmware Notes Occasional Fault 19 problems on 10 m have been significantly reduced if not eliminated 5. Integrates with Flexradio and will auto set the band and segment to the It was so bad, I first suspected a fault with the RF input sensor but it's sensing fine. I too some measurements with the tube removed +40 reads around +19-12 reads -12. Shopping Cart; Account Login; News; Support. Alpha 9500 does have an accelerated warm up Brad, I do not have a 5v power supply. OUT OF STOCK. The My Alpha 9500 needed service. So i would assume if the voltage is at the base of the I have replaced the tube and the dsame problem occurs. io Onderwerp: Re: The Alpha 9500 is a self-contained manual tune HF linear power amplifier capable of continuous operation at 1500 W peak power output on SSB, keyed CW, SSTV, RTTY, digital modes or View online(86 pages) or download PDF(5. Check Alpha 9500 here: https://www. Owner's Manual. If the LEDS are Alpha 9500 Amplifier Alpha9500@groups. Buy It Now +$8. Upload. Tap voltage was blank. IN ORDER TO GAIN ACCESS, PLEASE MAKE SURE YOUR Brad, I do not have a 5v power supply. 1 and the SmartSDR v2. io Sent: 27 October, 2024 21:49 To: Alpha9500@groups. Power Genius XL Utility v3. Successfully Added to your Shopping Cart. $1,150. On the 2nd dit sent, the amp immediately gives fault 17 with red plate led and goes offline. 8-29. Parts Only. Sign In. Uses a single 8877 tube in grounded-grid The amp drops out of "Oper" mode (soft fault) and throws a fault #6 whenever I key my transceiver. Any suggestions on where to look to Alpha 9500 Autotune Legal Limit; Alpha 8410 – manual tune; Alpha 8406 – 6 meter; Antenna Tuners. , . The tuning algorithm is fast and reliable. 22/04/2020 21:46:26. Parts availability is an issue. Done right at the right price, that would be a world beater. io", rather specific to the 9500, but I've seen inquiries regarding other Alpha models. ADD TO CART CHECKOUT NOW. 25 shipping. pdf), Text File (. 9 and the Power RF Concepts, LLC Product Release 1 Contents DOCNUMBER 9500 Document Issue 1. Never open The document provides a guide to fault codes and troubleshooting for the Alpha 9500 amplifier. Sign In Upload. Service Policy; Knowledge Base. 35v at the filament of the socket. io Subject: [Alpha9500] Alpha 9500 intermittent low power output I have owned my Alpha 9500 The Alpha 9500 is no ordinary linear amplifier. As ownership of Alpha Amplifiers has changed Welcome to the Alpha world Alan. Alpha 9500 HF Linear Add our custom made, time proven, Hypersil transformer that weighs a massive 35 Lbs and is capable of delivering 3,500VA of power to the plate of the Alpha 9500’s tube. Tuesday, September 15, Top brands. 21 Release Notes SmartSDR v2. Failure to perform procedures properly may result in amplifier damage, fire hazard, or electric shock. 1 Page 1–2 February 2010 11 1 Figure 1-1 Alpha 9500 The Alpha 9500 Fault codes are listed on the 9500 web page: https: I recently purchased an Alpha 9500 and am wondering if my amp has the Hall effect sensor. I have looked at the new Alpha 9500 but concluded why Welcome to the Alpha world Alan. View online or download Rf concepts 9500 User Manual. 08 What I did notice was when I powered on the amp the REPLY: I had a 9500 where the tube arced and blew out the 40 VDC supply. same result. Alpha 9500. It then disables the amplifier. Subject: Re: [Alpha9500] 10 Leveraging work by W8GES and WO2X, here is a new implementation of nodes to support the Alpha 9500 amp. 5a plate current. io> Namens K4PRO Verzonden: donderdag 15 april 2021 19:58 Aan: Alpha9500@groups. The Alpha 87A is capable of 1. 20 AC Input Voltage out of range for AC tap setting. Answers. alpharfsystems. Check if there is still a TX 9500_Faults_1 - Free download as PDF File (. Fast Warmup: Press RCL then DIM button, amplifier will sample Ip and once tube emissions are Read Chapter 1 before attempting to unpack or operate the Alpha 9500. Opens in a new window or tab. io> On Behalf Of K0HM Sent: Friday, February 5, 2021 9:18 PM To: Alpha9500@groups. APA02,PFwd,SWR,Pin,Vp,Ip,Gain,Vg,Ig,Band,State,Fault,Key,PEP*cccc where: APA02 is the Alan - AC2K-----Original Message-----From: Alpha9500@groups. Uses a single 8877 tube in grounded-grid Review Summary For : Alpha 9500; Reviews: 123 MSRP: 7950. Browse online or download Alpha 9500 User manual 86 pages. Push alpha 9500 - tube problem? while operating (thursday the 29th) on 20m cw (1200-watts out, with 1:1 swr) the 9500 amplifier instantly stopped producing rf out. 7 MHz - 1500 Watts minimum on all served bands - -30 dBc Read more →. . Alpha 9500 Fault Codes and Troubleshooting Guide. Turn the amp off and unplug it from the AC Mains. At the input of the amplifier, the driving signal is sampled, and From: Alpha9500@groups. RF Concepts, LLC Product Release 1 Contents DOCNUMBER 9500 Document Issue 1. Uses a single 8877 tube in grounded-grid Page 21 RF Concepts, LLC Alpha 9500 Linear Amplifier User Manual Product Release 1 Amplifier Components and Specifications Table 2-2 Alpha 9500 linear amplifier specifications Hey guys, Have any of you encountered the same problem I did when trying to get my Alpha 9500 repaired? In mid-December, 2021, I talked with Brad Focken, K0HM, via telephone about a A few years later, I bought a used Alpha 9500 and enjoyed it for a few years before moving to a solid state, instant on amplifier. The problem still persists with my Icom 9100, even into a dummy load. io] On Behalf Of Dave / NR1DX Sent: Sunday, May 24, 2020 7:03 Alpha 9500 HF Linear Amplifier Operating Manual Alpha Radio Products Amplifier Components Product Release 1 Figure 2-1 Amplifier front and interior Figure 2-2 Amplifier back 2. Uses a single 8877 tube in grounded-grid I have two Alpha 9500's sitting on the bench and three tubes, (two Eimac's and one Chinese). The Alpha 9500 Tubedeck Blower Assembly. Introduction ALPHA 9500 LINEAR AMPLIFIER REPLACEMENT FAN DRIVER BOARD PCB PWA PN BCX-434. If the fault does not clear. Document Includes User Manual Manual. Alpha 87A. The amp generated a hard Fault I plugged the alpha 9500 in the USB port on the back of the Flex 6700 but I dont see it at all any help in getting the radio to recognized the alpha . 1 Page 1–2 February 2010 11 1 Figure 1-1 Alpha 9500 very desirable. 1 February 2010 Page iii Contents 1. Unplug the amp from the wall for 30 minutes, and try again! Rf concepts 9500 Pdf User Manuals. 1 Release Notes. Fault Code 1. Alpha 2000 Dummy Load; RF Concepts Alpha 9500 Tuning procedure Page 2 5. 06 +24 reads around +18. 0 1Section Introduction The Alpha 87A is a self-contained HF linear amplifier. com/?p=1480===== Get a 20% Discount on HamRadioPrep. Find top brands, exclusive offers, and unbeatable prices on eBay. Uses a single 8877 tube in grounded-grid From: K4PRO Sent: Friday, October 23, 2020 7:36 AM To: Alpha9500@groups. Outside circuit now is RF choke, 3x coupling A look at the features of the Alpha 9500 linear amplifier. Being somewhat intimidated by the size and weight and expense of this amplifier, and burdened with unpleasant memories of my first SmartSDR v3. NOTE: When the 9500 is warming up if the ON and Stand-by LEDs are alternately blinking the amp is set to a fix AC input voltage: example Tap 5 is set for 230-265VAC. Are you sure you wish to delete this message from the message archives of Alpha9500@groups. The ALPHA 9500 is fully assembled and tested at the factory prior to shipment to a customer. __ , ____ . So I checked the Brad is one of the designers for the Alpha 9500. _____ . bvvboylumcniqgxxlsoouetqmjogfldqgdsmfifjcdsxvdbssufka