mramos1
Active Member
I bought and built a 18 watt stereo amplifier kit, built it and dropped it in a metal hammond box. For a desktop ipod amp. I used RCA females for the input and solid core wirewrap wire to connect the inputs to the board (GND LEFT and RIGHT). The kit has screw down connectors on it.
I am getting a lot of (I guess 60Hz) low frequency humming/buzzing. If I grab or move it, the buzz level goes up and down.
Anyone have a clever idea how to eleminate the buzz.
It might be from the power supply (wall wartl) or the unsheilded input wires. There is no ground to the metal case or caps across the inputs either.
Looking for ideas on where to start.
I am getting a lot of (I guess 60Hz) low frequency humming/buzzing. If I grab or move it, the buzz level goes up and down.
Anyone have a clever idea how to eleminate the buzz.
It might be from the power supply (wall wartl) or the unsheilded input wires. There is no ground to the metal case or caps across the inputs either.
Looking for ideas on where to start.