No announcement yet.

Thordarson PA amp conversion

  • Filter
  • Time
  • Show
Clear All
new posts

  • Thordarson PA amp conversion

    I have a ~1949 Thordarson T-31W08 amplifier that I'd like to convert to a guitar amp. It actually won't take that much conversion. In stock form, it's similar to an early Fender Champ, but with a single 6L6 output tube rather than a 6V6, driven by a 6SJ7 pentode. I will, however, be doing a complete tear-down and rebuild. Experience has taught me that's the best way to end up with something that doesn't have weird pops and sizzles in it. I can also implement better grounding practices.

    A "phono" input connects directly to the 6SJ7, but it also has a high impedance Mic input with a 6J7 pentode. My question for the experts is: is there some good use for the 6J7 (or another octal tube)? I haven't tried it, but I have a feeling that a guitar might easily overdrive the 6J7. Maybe a 6SL7 or a single 6J5 stage?

    And we have the standard three pots on the front, Mic, Phono, and Tone.

    I have built Hi-Fi tube amps, and I'm an expert Hammond/Leslie tech. What I know less about is what makes for good guitar preamp/driver gain stages.

    Also, I've noticed that cathode bypasses in this amp--and in many guitar amps as well--are chosen in such a way as to limit low frequency response. Is this a matter of economy or one of purposeful bandwidth limiting?

    The output transformer on this amp is fairly large for a single 6L6, so I would expect it to have decent low-end response.

    Attached Files
bostanci escort
sisli escort mecidiyekoy escort
pendik escort
sex vidio
altyazili porno
antalya escort
beylikduzu eskort bayan eskort bayan escort antalya sirinevler bayan escort
gaziantep escort gaziantep escort
atasehir escort
antalya escort bayan escort atakoy
izmit escort
ankara escort
replica watches