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    Yes, went great, the amp is way louder than i...

    Yes, went great, the amp is way louder than i need. Send me you e-mail and I'll forward it to you
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    I have not gutted it yet. I replaced all the old...

    I have not gutted it yet. I replaced all the old caps and rewired the 1st two preamp tubes to resemble a Fender Bassman circuit. I decided not to mess with the phase inverter and the power tube...
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    I was afraid you someone would tell me that.

    I was afraid you someone would tell me that.
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    Output transformer question

    I purchased a Bogan 110D audio amplifier from e-bay that I was planning to convert to 47762guitar use. I have been having lots of issues and decided to scrap the conversion. I was thinking of...
  5. Thread: Bogan DB-110

    by mike60510
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    1,632

    Thanks for the advise. I was reading some blogs...

    Thanks for the advise. I was reading some blogs on-line about the location of the tone and volume controls and that spurred my questions. After looking at numerous schematics, the 0.1 uF coupling...
  6. Thread: Bogan DB-110

    by mike60510
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    1,632

    I was wondering if anyone had any suggestions on...

    I was wondering if anyone had any suggestions on where to put the tone stack and volume controls. Currently, the volume is prior to the second 12AX7 and the tone and bass are as between the two...
  7. Thread: Bogan DB-110

    by mike60510
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    1,632

    Yes, you are correct that is part of the hum...

    Yes, you are correct that is part of the hum balance circuit. Thanks, i see that now. Yes, the wires are twisted to the heater elements.

    With that resistor in the circuit, i don't get more...
  8. Thread: Bogan DB-110

    by mike60510
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    1,632

    [QUOTE=mike60510;481062]Thanks, no fire in the...

    [QUOTE=mike60510;481062]Thanks, no fire in the first two 12AX7s = good reason for no sound. Back to troubleshooting. Thanks for the information.[/

    Got sound! I was wondering if anyone could...
  9. Thread: Bogan DB-110

    by mike60510
    Replies
    16
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    1,632

    Thanks, no fire in the first two 12AX7s = good...

    Thanks, no fire in the first two 12AX7s = good reason for no sound. Back to troubleshooting. Thanks for the information.
  10. Thread: Bogan DB-110

    by mike60510
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    1,632

    My mistake, thanks for the lesson. Putting all...

    My mistake, thanks for the lesson. Putting all the tubes in makes a world of difference.
  11. Thread: Bogan DB-110

    by mike60510
    Replies
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    1,632

    Bogan DB-110

    I purchased a Bogan DB-110 PA for parts; however, I thought I would give it a try and see if I could get it to work. Iíve replaced the electrolytic and put in a set tubes with have no output, Iím...
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    Thanks for the assistance and technical...

    Thanks for the assistance and technical information. Its truly appreciated.
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    I starting to think that this transformer may not...

    I starting to think that this transformer may not be a good candidate for what I'm hoping to accomplish.
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    Thanks for the help. Yes, it is center taped and...

    Thanks for the help. Yes, it is center taped and I did measure 192 volts like you mentioned. Would the 6X4 work better than the 5Y3?
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    Transformer help

    I purchased and salvaged a power transformer from a Regency MR-10D Monitoradio. The transformer is a model 500-802 and has the EIA manufacturer code 831 (Triad). I cant find a spec sheet for the...
  16. Grounding of Switchcraft Tip Shunt jacks

    I recently installed some Switchcraft tip shunt input jacks in an amp. Is it best practice to connect the tip shunt and the sleeve (ground) lugs together? The sleeve lugs of the original jacks were...
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    No, the tubes don't red plate. i measure a...

    No, the tubes don't red plate. i measure a surface temperature of the power tube of about 210F. So after doing some research, that seams to be within reasonable limits. I don't think I have a...
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    What does pulling the power tubes tell you and...

    What does pulling the power tubes tell you and what is an ideal increase in voltage range when the tubes are removed?
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    I read a post earlier where that was suggested. ...

    I read a post earlier where that was suggested. from the main transformer to the input of the rectifier i got 334 VAC. The output of the rectifier was 433 VDC and both leads of the output...
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    Yes, I got that result using that method. ...

    Yes, I got that result using that method. (actually, the in-place resistor measured 272 ohms) Uncle Doug posted a second video where he measure/calculated the plate dissipation using the impedance...
  21. I know this thread is almost ten years old, but...

    I know this thread is almost ten years old, but thanks!
  22. I know this thread is almost ten years old, but...

    I know this thread is almost ten years old, but thanks!
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    I replaced the three main caps on the power rail...

    I replaced the three main caps on the power rail from rectifier, 5, 10 and 20 uF . The cathode Pin 8 holds at about 17.3 volts. I have sound now but the output tubes still get hot.
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    Hot power tubes on Silvertone 1482

    I recently replaced the filter capacitors in my Silvertone 1482 amp with the values on the schematic (attached). Now I get no volume and the 6V6 power tubes get very hot almost immediately. I...
  25. Thread: Resistors

    by mike60510
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    1,518

    Thanks, I cleaned the tube sockets and the...

    Thanks, I cleaned the tube sockets and the "frass" before I powered up the amp. Actually, i realized after reading all the responses, that the schematic clearly shows the resistors in question to be...
  26. Thread: Resistors

    by mike60510
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    1,518

    Thanks for the help

    Thanks for the help
  27. Thread: Resistors

    by mike60510
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    R4 is stamped CGW N20 10% and 100k. I did a...

    R4 is stamped CGW N20 10% and 100k. I did a search, but what do you expect for a 50+ year old resistor.

    According to the schematic I'm using, one of them needs to be removed. The circuit feeds...
  28. Thread: Resistors

    by mike60510
    Replies
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    1,518

    Resistors

    The attached photo is a work-in-progress conversion of a Hammond AO-35. In the photo, both R4 and R5 are 100k ohms; however, they are physically different. Both are original, I've seen similar...
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