Need Help with circuit Diagnosis (CRATE CR-112)

[Vokzel]

Hello, I am fairly new to circuits and amps, and I have an old SLM amp id like to fix. It’s my dad’s and it never really worked to well. The pots...

[dafloretta]

I realized a design for a dual mode killswitch/live switch and have since found these for sale online, but only with a large button.
basically a dpdt...

[Mikheil]

I would like to build acoustic guitar preamp based on Fender Acoustasonic circuit.
I got 15V power supply and some TL072, I need one-channel preamp...

[Afroman]

Hi,

I just uploaded my tutorial video on how to use an LM386 to build a simple ~1 watt mono amp circuit. Figured you guys might be interested...

[Rockstar Okan]

Hi everybody;

I have Roland HD-3 electronic drum kit and module. I want to connect 2 pedals to one kick input. Please help me about this....

[nedhogan]

Im currently restoring an old Linear Conchord. They where used in the UK as a poor mans Vox ac30. I have replaced many of the components and loaded her up...

[condor]

i bought a new bass. But its electric part is malfuntioning. to fix it, i need a preamp circuit wiring diagram.
unfortunately, i cant...

[caguaman]

I found a disassembled midi controller keyboard.

I wanted to use it connecting some switches as keys but the circuit there is different from...

[Mark Black]

Ran across this today and just wanted to share:

Circuit Board Repair and Rework Guide

To be sure they would like you to buy some...