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The Sweet 807 is one of Dennis' older amps. If he were building one today he may make different design decisions.
Wow beautiful amp, what are your impressions on the sound quality?
If possible variable NFB would be useful to adapt the amp to the speaker.
Please Note George I just was told variable NFB not possible in this case, since the 807 need NFB due its electrical characteristics.
I always thought the 807 was an older version of a KT-66 or 6L6 with a top cap for High Voltage. I owned an amp designed for 807s once, and also used 807s in an Elekit TU-879 amp that was designed for EL34/6L6/KT-88, etc. (with adapters). I never read anything about any specific NFB requirement for the 807 tube.
807 is a ''new'' version from the 6L6 and the 1625 is a 12V version from the 807. The 807W was the WWII military version, very robust yet avaliable at low prices, a bargain.What are your impressions on the 807 sound?
How do they sell the Line Magnetic for that price?