Given the SG-500's ALC control signal is +1 to +5 VDC, and the Kenwood TS-480HX's ALC signal expects -7VDC, how have others interfaced these two pieces of equipment? _________________________________
Interesting thoughts, gentlemen. Thank you. Fortunately, the SG-500 does provide drive attenuation when necessary, so ALC isn't actually required. I was just wondering if anyone knew of a circuit tha
The amp looks good from the CGI images, but it is what isn't said/shown that is disturbing. Why is the image of the "Revolutionary" user interface so small as to be unreadable? Although implied, I fi
You'll find significantly more information about the first iteration of the amp (tubes) in the Spring 2013 Dedicated RF newsletter here: <http://archive.constantcontact.com/fs141/1111187925496/archiv
Has anyone experience using the N8XJK Super Booster <http://stores.tgelectronics.org/the-n8xjk-super-booster/> with an SG-500 linear amplifier? The battery booster is rated at 40 amps and 16 volts ma
Hello Christopher, Thank you for your response to my inquiry. I failed to mention that I intend to use the SG-500 in compressed voice SSB mode, so it should draw about 40 amps with a 40% duty-factor.
Hello Tim, Thank you for taking the time to respond to my questions. Very much appreciated. I don't know what the duty-cycle of a compressed SSB transmission might be, but I'm guessing somewhere arou
I purchased a used 1995 Alpha 87A in 2012. I have found it to be very reliable and a good performer. It is reasonably quiet, auto-tunes reliably, and will put out full legal limit all day without iss
Blank PALs are available on eBay, as well as programmers for them, so if the ETO data were made available, it might be burned into new PALs. _______________________________________________ Amps maili
Jim, With all due respect, it would appear that you may be unaware of the vital role mathematics plays in discovery of our physical universe. There is a remarkably insightful explanation in the Nova
Hello Jim, Yes; I must apologize for my error in addressing my comment to you instead of Bill. Me Culpa. I find that Nova math documentary brilliant in the information it provides about the study of
What leads you to believe that the compression and expansion of space-time that occurs in a gravity wave will be reflected by the moon? _______________________________________________ Amps mailing li
Data sheet is available on this page: https://www.rfparts.com/rftransistors/transistors-blf/blf188xr-nxp.html _______________________________________________ Amps mailing list Amps@contesting.com htt
Hello Charlie, It sounds like your troubleshooting skills are up to the task, but if you need the input of an engineer very familiar with the Alpha 78A, I wholeheartedly recommend Glenn Pladsen (AE0Q
Hello Paul, Tough request. I searched and searched and about all I could find that had anything to do with the 3rd edition was the attached file found on this page: http://s2.bitdownload.ir/Ebook/Ele
My 2¢: http://www.hilberling.de/en/en_pdf/hpa8k_ps_v1.10_2017-04-07_en.pdf The color LCD front panel catches the eye. And support for two exciters and four antennas is useful, but I'm unconvinced the
Wanted: 500 Watt SGC SG-500 SmartPowerQube HF Amplifier. Please include photographs, full description of amp history, condition, and price in first e-mail. Please contact me via e-mail: LDighera@att.
That would be the 2006 issue: http://www.813am.qsl.br/artigos/py2ko/burrico/quaggi.pdf _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.co
Hello Bob, I've been considering replacing my Alpha 87A <http://kj6yvt.com/amplifier.htm> with an Elecraft KPA1500 too. The instant-on feature solid-state amplifiers offer is attractive to a fellow w
Hello Jeff, Tubes are an issue for the 87A as well; that's for sure. Here are some tubes to consider: NEW GS-36B/4CX400A Tube, Tetrode, Russian https://www.rfparts.com/catalogsearch/result/?q=GS-36B