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  1. I shortened the leads for all the components on...

    I shortened the leads for all the components on the front panel as much as possible and grounded the sheath for the piece of coax running in from the input jacks (visible in the picture of the panel)...
  2. It sounds a hell of a lot better through the 6.5"...

    It sounds a hell of a lot better through the 6.5" inch test speaker I used to build it than the solid-state practice amp I ripped that speaker from. Through a 12" Fender speaker it sounds even...
  3. I've been using it to learn and practice working...

    I've been using it to learn and practice working on tube amps (I thought it was a neat amp, it was cheap, and the tubes that were in it are worth a good chunk of what I paid for it). I understand the...
  4. It's not ideal. The old pots had terminal strips...

    It's not ideal. The old pots had terminal strips soldered to the back of them, but I don't have an iron that will remove them, or attach them to the new pots or to the panel. The connections are...
  5. The cabinet design is unusual. The rotary power...

    The cabinet design is unusual. The rotary power switch, fuse, neon lamp (120 volt, unfortunately), and tone and volume controls are on the front panel. Everything else is in the chassis, which has a...
  6. First build. Very simple, 3 watts, 6X4/6SJ7/6F6.

    Hello all. Here's my first tube guitar amp build. I got the idea and the schematic from D-Labs on Youtube. It's a 3 watt single-ended amp with a 6X4 rectifier, 6SJ7 preamp, and 6F6 output tube. Per...
  7. Repairs, hum, and the noise floor on a Kalamazoo Bass 30

    Hello all. I've been repairing/restoring/rebuilding a Kalamazoo Bass 30. Schematics are attached. The following is a list of all the issues I noted in the amp and how they were fixed. After every...
  8. I finished replacing the filter caps and checked...

    I finished replacing the filter caps and checked the bias. Plate voltages were within spec and both output tubes were at about 60-70% plate dissipation. And it sounds good! It has a nice clean tone...
  9. You guys were right about the cap. I couldn't get...

    You guys were right about the cap. I couldn't get a capacitance reading (other than zero) on my meter, but I tried it on a different one and it tested okay. And with very aggressive cleaning,...
  10. I tried cleaning it with anhydrous isopropanol...

    I tried cleaning it with anhydrous isopropanol and not much came off. It measures infinite resistance and zero capacitance.
  11. Thank you! Obviously I'm still filling in some...

    Thank you! Obviously I'm still filling in some gaps in basic knowledge. The other filter cap is indeed 20uF/25V. As far as I can tell, everything else in the amp is original and matches the...
  12. It loads when I click on it. What did I do wrong,...

    It loads when I click on it. What did I do wrong, how do I make it load here?

    In the meantime here's an alternative link: https://drive.google.com/open?id=0BxuNq_cKac_tWTFqY05zRUxmUnM

    edit: I...
  13. Kalamazoo Bass 30 differs from schematic (plus potential problems)

    Hello all. I'm in the middle of repairing a Kalamazoo Bass 30, and there are a couple of things I found inside that I don't fully understand. Can someone more experienced provide illumination? I've...
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