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OK, thanks, that makes sense. I thought that any pot would be replaceable, but apparently not, then. The volume control is part of a module that connects to the rest of the board with about 2x8 leads; seems complicated. The amp is a 15-20 years old Panasonic unit, at best mid-range, so I'm...
This picture is of the wafer out of a 200k dual-gang volume pot. It was the volume pot in my stereo amp, but was getting scratchy. I repaired it, but when I put it back together I squeezed too hard and messed it up again. Then when I tried to open it again, I broke the wafer. Cost me hours...
Great, thank you very much. Yes, it is a simple idea, but like you suggest, it can get more complicated with ground loop interference and such. I will look for some suitable amps and begin with simpler components and grounding them as you describe. It doesn't seem complicated; I don't know why...
Thanks, jiripolivka. Sorry, my desciption is not very clear. My question is really: how do I send a stereo audio signal from the computer (or any device) to multiple sets of speakers? What audio amplifier would be best? Is it easiest to send the signal to multiple amps in series, using a common...
Hi,
I would like to build a circuit to distribute a stereo audio feed to multiple sets of speakers, for a "multi-zone" home audio system. I would like to use digital switches and control the system with a computer eventually (on/off and volume for each set of speakers). The stereo feed could be...
Hi, thanks for that. I guess what I'm not sure about is how exactly the phase control thyristor works, what the difference is between a basic thyristor and a "phase control" thyristor. Your application note uses a triac as a switch (bi-directional), which would be ideal, if I had one at hand...
Hi,
I am trying to make a circuit to control mains AC. I want to control a heating elment (e.g. soldering iron, water heater). I have a thermostat control which will switch up to 50 mA at 9-24V. I was planning on using a relay, but don't have one on hand, and reading up on it a little, it seems...
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