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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Once by coincidence... posted by unclestu52 on June 21, 2006 at 11:34:17:
I have to agree that I have hit on many "interesting" bits of hardware. Conductive plastics often make good microphones, even when not intended to do so... (There is a long story here, but I'll leave it out, it isn't terribly germane to regular audio equipment, although it did cause some remarkable feedback...)What you point out is a good example of why stepped attenuators and careful mechanical design of controls in general is a good idea.
Your experience does bring out the point that the kind of laqueur isn't likely to matter much, what matters more is how the knob affects the dampling and acoustic coupling of sound into the shaft.
Now ask me about the bass control on a Dynaco PAT-4. )*_)*)* what a design. Or was it the treble control. ()*&(* Anyhow :)
And composite resistors. They're resistors, right? Err, no, they actually have quite a voltage coefficient, say enough to cause distortion 40dB or so down from peak when used as the load resistor in a 400 volt high-impedence headphone driver...
Electrolytic 'capacitors'. Yeah. Let's talk about those. Some of those make bad mikes, too.
Mike wiring with DC voltages (ala phantom wiring) on it that don't have good "twist" and such...
Note, I'm NOT disputing what you have to say. There are a lot of examples where components are more or less than they are supposed to be, and this is where, in my opinion, people should look first when something surprising happens. And it WILL happen... :)
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Follow Ups
- Well, ... - real_jj 13:47:34 06/21/06 (0)
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