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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by gtrdude

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    Filtering for ICs

    I am building a unit with a PIC and various other ICs that needs to be stable at all times when in use. What sort of filtering should I use on each of the power supply pins of the ICs?? Should I use 0.1uF, 1uF or 10uF??? Or all of the above?? If I get gates tripping when they shouldn't it...
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    radio feedback/interference/improper wire grounding

    is it possible for you to open up the satellite speakers and replace the wire with round jacket shielded speaker wire? it shouldn't be expensive. also keep the lengths as short as possible so that they don't act as antennas to radio frequencies. some of those FM wavelengths can be as short as...
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    Amplifier: Sansui 8080db problem. Please help

    Your answer may well exist here: **broken link removed** I don't recommend fiddling with the innards of any amp unless you are familiar with the dangers that exist by doing so.
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    EAGLE V4.11

    I don't think the guys around here will go for that kind of thing. Why can't you just use the demo version??
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    Audio Quality

    Perhaps this may be of interest to you **broken link removed**
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    Where to get sample IC's

    Do you need to have your own (or be part of a) company to request samples?
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    Zero Signal audio switching

    Ok, I think I'm starting to understand. There is some circuitry that controls the switching. It determines when the next zero-crossing is, and when that occurs it cause the switches to change channels. Could somebody please explain the operation of this setup in more detail please? An...
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    capacitors

    Yes, a capacitor in series blocks DC and only passes AC. A cap in parallel will let DC through to the rest of the circuit and pass the AC through to ground (if it is connected to ground). Check out high pass and low pass filters for a good understanding of this concept. You really need to...
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    capacitors

    If you are talking about polarity then yes there is a right and a wrong way to hook them up. A "bipolar" cap means that you can use either lead to go to the more negative and positive voltages (ie. hook it up in either direction), so you can't really go wrong unless you select a cap with a...
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    Zero Signal audio switching

    Hi there, I have been reading Kevin O'Connor's "The Ultimate Tone" which is a guide to building and modifying tube guitar amps. There is a nice little section on audio switching. It details switching using various components like relays, CMOS, Jfets, mosfets etc. I can understand the parts...
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