- 1. [Amps] YC-156 Triode (score: 1)
- Author: "k7rdx" <k7rdx@charter.net>
- Date: Thu, 8 Sep 2005 07:31:37 -0700
- I would like to converse with anyone who has built around the yc-156 re: workable plate voltage,input impedance,typical use on hf bands,warm up time,etc..Please reply off list directly...Thanks,Jim..
- /archives//html/Amps/2005-09/msg00073.html (6,176 bytes)
- 2. Re: [Amps] YC-156 Triode (score: 1)
- Author: "Larry Carman" <lncarman@swbell.net>
- Date: Thu, 8 Sep 2005 19:55:25 -0500
- I built an HF amp using this tube. I only run it on 20 - 80 meters. The design is very basic, much the same as most all your GG amps. The warm-up time is 6 minutes. I use a tuner prior to the amp for
- /archives//html/Amps/2005-09/msg00078.html (8,632 bytes)
- 3. Re: [Amps] YC-156 Triode (score: 1)
- Author: W6RU@aol.com
- Date: Thu, 8 Sep 2005 22:24:31 EDT
- My filament transformer didn't have a center-tap so I improvised a B- by using an artificial centertap made of diodes connected to each leg of the filament's secondary. This tube is NOT a directly he
- /archives//html/Amps/2005-09/msg00079.html (7,037 bytes)
- 4. Re: [Amps] YC-156 Triode (score: 1)
- Author: "k7rdx" <k7rdx@charter.net>
- Date: Thu, 8 Sep 2005 20:38:02 -0700
- That sounds typical of some of thr Russian triodes too...I read somewhere a few yrs ago of a conversion to GI7B`s in a MLA-2500 . The guy had a ac hum on the audio as well as when keyed with no drive
- /archives//html/Amps/2005-09/msg00081.html (8,680 bytes)
- 5. Re: [Amps] YC-156 Triode (score: 1)
- Author: "Larry Carman" <lncarman@swbell.net>
- Date: Fri, 9 Sep 2005 08:05:58 -0500
- You are right about the 'not a directly heated cathode'. I've not detected any hum what-so-ever in this amp with the B- setup I have. If I used a standard CT filament transformer for B- the hum would
- /archives//html/Amps/2005-09/msg00083.html (7,942 bytes)
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