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References: [ +from:w5cul@sbcglobal.net: 41 ]

Total 41 documents matching your query.

21. Re: [Amps] use or not coaxial audio cable to transmitter's (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sat, 30 Oct 2010 20:08:23 -0500
Jim, You may have missed it, but his diagram shows his 1M ground rod directly connected to his antenna, with no grounding for his equipment. I certainly hope the diagram is incorrect and he is not de
/archives//html/Amps/2010-10/msg00452.html (16,456 bytes)

22. Re: [Amps] use or not coaxial audio cable to transmitter's (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sat, 30 Oct 2010 20:13:27 -0500
I said "dirty Balun", meant to say "Ugly Balun". I guess a dirty one would look ugly ;-) 73, Mike W5CUL Jim, You may have missed it, but his diagram shows his 1M ground rod directly connected to his
/archives//html/Amps/2010-10/msg00455.html (17,196 bytes)

23. Re: [Amps] "Best" limit indicators for multi-turn, shaft-driven gadgetry (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Tue, 9 Aug 2011 19:25:19 -0500
Jim, I have a similar project that I have been working with off and on for some time now. It is a Balanced to Balanced Antenna Tuner feeding a loop antenna with open wire, with coax to the station an
/archives//html/Amps/2011-08/msg00041.html (12,619 bytes)

24. Re: [Amps] RF in the Audio (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sun, 25 Sep 2011 10:21:58 -0500
Not to agree or disagree with any of the statements thus far on this subject, I would like to add a real-world application that does seem to be working fine with no RFI issues at legal limit. This is
/archives//html/Amps/2011-09/msg00195.html (17,732 bytes)

25. [Amps] Question for Alpha Owners (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Fri, 24 Aug 2012 09:02:28 -0500
I am looking for comments from anyone who has field experience in using Machlett 3CX800A7 tubes in their Alpha compatible amplifiers. Is the input impedance different from that of the EIMAC version,
/archives//html/Amps/2012-08/msg00377.html (6,578 bytes)

26. Re: [Amps] urban myth and transmitting tubes (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sun, 26 Aug 2012 19:40:49 -0500
Probably just some regurgitated misinformation or maybe just plain nomenclature confusion. 73, Mike W5CUL I was selling some 4-1000A duds as display items for our local radio club when a guy came by
/archives//html/Amps/2012-08/msg00459.html (8,368 bytes)

27. Re: [Amps] SOURCE OF TURNS COUNTER(S) - US SUPPLIERS (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sat, 8 Sep 2012 21:11:44 -0500
John, Here is one source, Max-Gain Systems, Inc. http://www.mgs4u.com/RF-Microwave/turns-counting-dials.htm 73, Mike W5CUL --Original Message-- From: Amps [mailto:amps-bounces@contesting.com] On Beha
/archives//html/Amps/2012-09/msg00132.html (8,643 bytes)

28. Re: [Amps] conductive grease for roller inductor (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Fri, 23 Nov 2012 07:37:42 -0600
Ralph, I use silver grease made by M.G. Chemicals. It is rather pricey, but just a dab will go a long way. My local Fry's store carries the stuff, when they can keep it in stock; it sells fast. http:
/archives//html/Amps/2012-11/msg00157.html (9,122 bytes)

29. Re: [Amps] Alpha 87a No RS-232 (score: 1)
Author: "Mike" <w5cul@sbcglobal.net>
Date: Wed, 4 Jul 2018 09:59:19 -0500
Since it is a serial connection, has anybody thought about or tried modifying the comm Link to a USB to serial. FTDI makes a packaged USB to Serial adapter, the chip is in the package. I purchased on
/archives//html/Amps/2018-07/msg00007.html (11,062 bytes)

30. [Amps] Alpha 87A Fault 37 and No LEDs (score: 1)
Author: "Mike" <w5cul@sbcglobal.net>
Date: Sat, 19 Jan 2019 18:21:36 -0600
So today I fired up my Alpha 87A for the first time in several months. It powered up for about 30 seconds then shut down with a Fault 37. The fault code basically indicates the Bandswitch is not movi
/archives//html/Amps/2019-01/msg00082.html (8,637 bytes)

31. [Amps] Alpha 87A Fault 37 and No LEDs (score: 1)
Author: "Mike" <w5cul@sbcglobal.net>
Date: Sun, 20 Jan 2019 09:17:30 -0600
So today I fired up my Alpha 87A for the first time in several months. It powered up for about 30 seconds then shut down with a Fault 37. The fault code basically indicates the Bandswitch is not movi
/archives//html/Amps/2019-01/msg00084.html (8,621 bytes)

32. Re: [Amps] Alpha 87A Fault 37 and No LEDs (score: 1)
Author: "Mike" <w5cul@sbcglobal.net>
Date: Mon, 21 Jan 2019 13:21:48 -0600
So a follow up for those who are tracking this Alpha 87A issue. Pulled HVPS PCB to gain access to the LVPS Fuse. Fuse Checks out good. While the HVPS PCB was out, was able to unseat and reseat the ha
/archives//html/Amps/2019-01/msg00099.html (9,726 bytes)

33. Re: [Amps] Alpha 87A Fault 37 and No LEDs (score: 1)
Author: "Mike" <w5cul@sbcglobal.net>
Date: Wed, 6 Feb 2019 09:51:57 -0600
So a final update on the Alpha 87. No fault indication via the Fault LED's was the clue to the root cause of the Hard Fault 37 seen. The LVPS was not producing 10vdc nor 5vdc, thus most of the ICs on
/archives//html/Amps/2019-02/msg00025.html (10,989 bytes)

34. [Amps] Alpha 87A Power Supply Question (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Mon, 3 May 2021 12:26:24 -0500
Good Afternoon Gentlemen, I have a rather quirky situation and a question about it. I have been chasing down a low level 60Hz hum I get across my speakers when I plug my Alpha 87A into a shared A/C S
/archives//html/Amps/2021-05/msg00000.html (7,592 bytes)

35. Re: [Amps] Alpha 87A Power Supply Question (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Mon, 3 May 2021 20:25:56 -0500
All, First Thank You to all who replied!!! I received a lot of replies off list, too many to answer individually. So I will attempt to answer all the questions in this one response as best as I can.
/archives//html/Amps/2021-05/msg00003.html (13,632 bytes)

36. Re: [Amps] Alpha 87A Power Supply Question (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Mon, 3 May 2021 21:28:47 -0500
All, Just a slight correction on the Cable from the Main Electrical Panel into the Bedroom. It is a 6/3, 6AWG with L1, L2, N & a Ground wire. Thank you, Mike W5CUL All, First Thank You to all who rep
/archives//html/Amps/2021-05/msg00004.html (14,575 bytes)

37. Re: [Amps] Alpha 87A Power Supply Question (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Tue, 4 May 2021 10:33:33 -0500
All, Problem Resolved. Thank you to all who provided advice, guidance and knowledge in working through this issue!! Root Cause: Alpha "Green Wire" tied to Neutral due to using a 3 Pole 220Vac Dryer R
/archives//html/Amps/2021-05/msg00009.html (17,860 bytes)

38. Re: [Amps] Alpha 87A Power Supply Question (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Tue, 4 May 2021 15:54:57 -0500
I think what was being said there is that if an Amp has 110Vac Fans, then there should be an independent Neutral associated with the Amp as well, to include L1, L2 and Ground. I think what was being
/archives//html/Amps/2021-05/msg00014.html (9,867 bytes)

39. Re: [Amps] Alpha 87A Power Supply Question (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Wed, 5 May 2021 20:18:07 -0500
Jim (W8ZR), I think you hit the nail on the head in terms of most amateurs...." Frankly, most hams, myself included, dont know or care much about the electrical code. They want to hook up their radio
/archives//html/Amps/2021-05/msg00025.html (20,865 bytes)

40. Re: [Amps] B&W PT2500 (score: 1)
Author: <w5cul@sbcglobal.net>
Date: Fri, 26 Aug 2022 23:47:03 -0500
For an input SWR when using a solid state amplifier against a PT2500 Amplifier, why not use something like this? It will provide a 50hom load to the transceiver input regardless of the band exercised
/archives//html/Amps/2022-08/msg00042.html (9,719 bytes)


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