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Re: [Amps] High Level SSB Generation

To: RCM <robrk@nidhog.net>
Subject: Re: [Amps] High Level SSB Generation
From: "Fuqua, William L." <wlfuqu00@uky.edu>
Date: Tue, 2 Feb 2021 22:26:55 +0000
List-post: <mailto:amps@contesting.com>
The GE SSB Handbook below has several single ended grid driven triode linear 
amplifiers with grid neutralization.
Some use the MB150 multiband tuner.
Many years ago, we discussed grid neutralized vs plate neutralized single ended 
triode amplifiers. Most grid driven single ended amplifiers have split stator 
capacitors in plate circuit.
   One thing I have realized is that the circuit may only be balanced in only 
one setting of the split stator capacitor due to the either plate to ground 
capacitance or grid to ground capacitance. This can be fixed by adding a 
capacitor on opposite side from the plate or grid to maintain balance. There is 
only one commercially made amplifier that I have seen that has this. The EF 
Johnson Courier has a cap from one side of the split stator input tuning 
capacitor that equals the grid to filament capacitance to ground for the two 
811a tubes.
   I have some big triodes that have imagined that I may build amplifiers 
around but would like to use PI output network instead of a link coupling. Sure 
would like to build a 1000T or 2000T amplifier. Hi Hi
73
Bill wa4lav

________________________________
From: RCM <robrk@nidhog.net>
Sent: Monday, February 1, 2021 9:30 PM
To: Fuqua, William L. <wlfuqu00@uky.edu>
Subject: Re: [Amps] High Level SSB Generation

CAUTION: External Sender



On Feb 1, 2021, at 18:04, Fuqua, William L. 
<wlfuqu00@uky.edu<mailto:wlfuqu00@uky.edu>> wrote:

  There was an old Radio Handbook,

Make room on a hard drive….

Mouse down to:    Radio (transmitters, receivers, design, repair...)

1936 ARRL,  1959 Orr,

The “Sideband Handbook”  GE notes has a 200 watt DSB rig.

http://www.tubebooks.org/technical_books_online.htm<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.tubebooks.org%2Ftechnical_books_online.htm&data=04%7C01%7Cwlfuqu00%40uky.edu%7Cb945f9a3e85b42e84d2508d8c722730a%7C2b30530b69b64457b818481cb53d42ae%7C0%7C0%7C637478298069563764%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=B92ipSsYDUUfyej6DVmLY1b61DFBsSTDLcNYzU7aizI%3D&reserved=0>



K2RK
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