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1. Re: [Amps] 4CX1600U - too good to be true? (score: 1): Author: "Roman Hanovych" <us5wdx@gmail.com>; Date: Wed, 26 Aug 2009 22:46:35 +0300; Hi Bill, this nice small tube was built in few places in USSR (also in my town Lviv, by Polyaron), but not in big quantities, so they were not so well known and popular among HAMs. Sockets unavailabi; /archives//html/Amps/2009-08/msg00511.html (9,116 bytes)
2. Re: [Amps] Russian pre-tuning units (score: 1): Author: "Roman Hanovych" <us5wdx@gmail.com>; Date: Thu, 8 Sep 2011 16:12:29 +0300; Hi Bob, that amplifier you have is called R-140 (name of a mass production russian transmitter it was removed from), thousands are in operation for last 40 years. The pre-tuning units are called BMZ-; /archives//html/Amps/2011-09/msg00016.html (9,773 bytes)
3. Re: [Amps] Item # 170692212503 (score: 1): Author: "Roman Hanovych" <us5wdx@gmail.com>; Date: Thu, 8 Sep 2011 16:32:20 +0300; Hi Roger, it looks like he just copied the text from the ad. written years ago. GU-91B were never plentiful and easy to get for everyone, but those who really wanted it to have allways had a good cha; /archives//html/Amps/2011-09/msg00017.html (9,108 bytes)
4. Re: [Amps] Removing grid shorts (score: 1): Author: Roman Ganovych <us5wdx@gmail.com>; Date: Tue, 28 May 2019 13:45:31 +0300; Hello Doug, you should talk to OM Power people to get the most comprehensive answer, based on their huge practical experience. They gave up long ago, and swithched to chinese FU-728F type, but still; /archives//html/Amps/2019-05/msg00070.html (9,764 bytes)

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