Recent content by huntest

Even if I tried to straighten the legs, the chip is surely damaged 😞

My OPA 2134 IC from Stompbox parts came to badly smashed. I hope they replace it.

Swelchy, Are you referring to the TL072 IP or the TL072 CP for the Mahayana IC build? Thanks

Thanks for all the help, I'll keep working on it

I fixed R102 ..... Still not working. When I touch the PCB on bottom of stomp switch it hums and occasionally pops. Could be a solder short on the poles beneath the PCB? LED still works and the bypass is fine.

Thanks, I'll keep working on it. The power supply both battery and power supply are 9v. What is VREF? Anyway to check the ICs in or off the board? Thanks

Will do

I checked the IC voltages 1thru 8 Ic1 7.26,7.26,6.58,.000,7.24,7.28,7.24,7.77 Ic2 7.28,6.68,various,.0007,.25,7.25,7.25,7.77 Ic3 7.27,7.27,7.25,.000,.007,7.25,7.25,7.77 Ic4 7.21,7.24,7.22,6.12,5.62,5.68,7.13,7.77 Okay?? Also get a faint fluttering noise when I turn trim pot and when I touch the...

Hope this helps. By the way, there is a popping sound when I press the switch to turn it on. LED still works and the bypass works

Will do with better picture

Adjusting the trim pot did not make a difference. I got all parts from Tayda Thanks

I built the Median Compressor and it doesn't work. LED lights up but with no pedal or ,guitar sound of any kind. LED goes out when switch is pressed and bypass works but with guitar sound only I would appreciate any advice on what to check out to get this working. Thanks

Thanks I'm going to go with the OPA 2134. I'll use a socket so I can have some flexibility.

The more I read about an IC for my Mahayana build, the more confused I get. There seems to be a number of substitutes for the AD712 IC and since I will be using a socket I can try different options. I've looked at Digikey and Mouser and I can't decide which to try. Suggestions and advice...

What is the recommended bias voltage setting for a stock build Median Compressor?