Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Misc Schematics and Layouts => Topic started by: khansen810 on July 14, 2019, 08:24:16 pm

Title: modified hammond pee wee AO-44 with 6G2 preamp + tremor-lator
Post by: khansen810 on July 14, 2019, 08:24:16 pm

I built this amplifier according to the attached schematic that I put together. The tremolo circuit is new which I added to the schematic. (connected to pin 1 of V1-A).The amplifier works fine with a guitar plugged in except the tremolo has no affect on the guitar. You can hear the tremolo circuit working. (pulsating)I have a feeling that I didn't connect the tremolo circuit to the correct part of the schematic. Would appreciate help as to where the tremolo should be connected to. Thank you.

Title: Re: modified hammond pee wee AO-44 with 6G2 preamp + tremor-lator
Post by: sluckey on July 14, 2019, 08:47:58 pm

Short out that 500K resistor on top of the intensity pot. Any better?

Title: Re: modified hammond pee wee AO-44 with 6G2 preamp + tremor-lator
Post by: khansen810 on July 15, 2019, 07:38:12 pm

Thanks for getting back to me. Shorting out the 500K worked. The tremolo works properly now. Thank you.

Title: Re: modified hammond pee wee AO-44 with 6G2 preamp + tremor-lator
Post by: sluckey on July 15, 2019, 08:25:55 pm

There is a simple mod to that tremolo circuit that allows the oscillator to run continuously. This means instant On when you step on the footswitch. I highly recommend it. Take a look at it in my '67 Bandmaster...

https://el34world.com/Forum/index.php?action=dlattach;topic=24334.0;attach=76204