I have been itching to put one of these together, so I mixed two passions... dubs and audio.... here are the results.... All the panel mount components aren't wired up yet, but those pictures will come tomorrow. I originally had plans of putting nicer RCA's...

I'm sure this has asked before, but none of my searches are turning up anything... For a situation where I want to switch between 2 sources, what is the best way to tackle the problem as far as costs go? Alot of those rotary switches and DPDT switches seem way overpriced. Do you guys have any...

I am trying to figure out a good way to impliment a resistor matching circuit. The way I do it right now is basically go one by one through my ohm meter (.01 ohms accuracy), put them on masking tape, and write down the number, then pick the closest of them. I have a few ideas, but they are...

I was thinking of building a cmoy to amplify a Shure E3. I hear the E3 is difficult to amp. What should I consider? Anyone have any comments.

When designing your protoboard layout, what is the preferred method. I was planning on making a scale drawing in adobe illustrator, and moving the parts around until they fit. What is everyone else's preferred method? If you use a program like that, could you please post your source file...

I was just curious, but would there be a way to passively monitor the output of an amp and design circuitry which will cut off the amp if a preset level of dc offset is introduced. I realize how to use a capacitor to kill the dc offset, but that messes up the signal path. Basically, a circuit...

Basically, I need to go from a computer's sound card's output, through 40' of cabling, to a telephone answering unit. However, that 40' of cabling is obviously causing a nice voltage drop and the sound card can't get enough (current/voltage?) to make it loud enough. That and noise being that its...

I was just looking at some digital pots for a small cmoy, and wanted your opinions. If they work as well as I hope, maybe even for something nicer like a pimenta. Here are some of the docs I've found that seem to be relevant Digital Pot Doc Digital Pot Doc 1 Digital Pot Doc using rotary...

I realize the purpose of C1, to block DC. However I also realize it has the sideeffect of being a high pass filter. Most noticable in the ~20Hz and below when used with the recommended .1uF value. I'm just wondering, if your amp is putting out very low DC, and it has no C1 blocking cap...