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A Single 6146 Amplifier - QRO
http://qro.it/amp/schemi/pdf/59hb196.pdf
A Single 6146 Amplifier 6-HIGH-FREQUENCY TRANSMITTERS A Single 6146 Amplifier The photographs of Figs. 6-64, 6-67, and 6-68, show views of an amplifier using a single 6146. With the built-in supply shown, it can be operated at an imput of about 70 watts, or up to 90 watts with a 750-volt supply. The circuit is shown in Fig. 6-65.
The AA8V 6146B Amplifier - Amplifier Schematic …
https://www.frostburg.edu/personal/latta/ee/6146amp/schematic/6146schematic.html
The amplifier bias circuit applies adjustable regulated bias to the 6146B control grid. The use of regulated bias results in improved linearity, important when the amplifier is used for SSB service. To avoid the expense of a separate power transformer, a filament transformer is
The AA8V 6146B Amplifier - Main Page and Exterior Photos
https://www.frostburg.edu/personal/latta/ee/6146amp/6146amp.html
ARRL handbook titled "A 90 Watt All-Purpose Amplifier". This design used a single 6146 tube and could be run as a linear amplifier on SSB or as a class C amplifier on CW. This was ideal for my purposes, and it looked like I could scrounge up all of the necessary parts, except for the grid input
6146W Power Amplifier. Please help! | diyAudio
https://www.diyaudio.com/community/threads/6146w-power-amplifier-please-help.101581/
The 6146 can only run about 200 - 250 volts on G2. This severely limits the possibilities for triode strapping. ie. For single ended, you need to operate in tetrode/pentode mode with G2 at a fixed voltage. Ultra linear (single ended or push pull) is not possible, unless you operate the anode at a very low voltage.
6146 Amp Feasibility | diyAudio
https://www.diyaudio.com/community/threads/6146-amp-feasibility.359775/
I don't think the 6146 is a bad tube for audio, as RCA certainty pushed that aspect. The issue was, I believe, that UL was becoming very common, and the 6146 isn't suitable for UL as it requires a relatively low screen grid voltage. If you can provide a good, regulated, screen grid supply you could have a good amp with 6146s.
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