Joe Williams's Discussions (28)
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One more amp question
If the description of an amp circuit says "output: .5W - 10W", depending on what?
Read more…pickup
I need another installment of electronics education. I have so far just used piezos, this is my first with a mag. pickup. I don't even know what it is, the guy at the music store, fished it out of a pile of old parts and gave it to me. I have also be
Read more…2 channel amps
What are the practical effects of running a mono input into a 2 channel amp and taking the output from just one channel?
Read more…speaker placement
I'm building a tiny amp in which the 2 speakers will fire out opposite sides. In order to fit, the magnets of the speakers will be in very close proximity, essentially touching in fact. Problem?
Read more…pickups
What kind of magnetic pickup should I use, if any, to be able to get clean tones out of my little 1 - 3w cb amps?
Read more…speaker connection
If there is no indication on the speaker, no +/- and the lugs are identical, is there a way to tell + and -, or does it not matter?
Read more…tone/gain
I'm very new to messing with electronics. I built a little amp with the Gitty/Artec board. It really needs a tone control. I've watched the video on adding a panel mount gain control to it. At the beginning they refer to adding a tone/gain control. D
Read more…Another amp question.
Here is an embarrassingly simple question. If I use a stereo circuit for an amp, with a mono input, would you suggest using only one channel for output, or wiring both into one, and would that double the wattage? Assuming 1 speaker of course.
Read more…tone control
I've seen the video on adding a gain control to the Artek amp. How about adding a tone control?
Read more…Amp circuits
I would like to play with building little amps for fun. I've been looking around at options for pre-wired circuits. I'm finding several in the 1-3 watt range, like the Gitty one here and others, and then several options 15 watts and up, but little to
Read more…More power
I have a pair of powered computer speakers powered by a 16V wall converter. How much damage do I do if I try to run it with 2 9V batteries?
Read more…Amp building question.
I have 2 little speakers from an old TV that I would like to build into one amp. Both are 8 ohm. Assuming one of the little Gitty 9V, 2.5W amp circuits, am I better off wiring them in parallel, for 4 ohms total or in series for 16?
Read more…Amp wattage
All else equal,as they say, what will be the practical difference in the performance of mini-amps with different output wattages: 1, 2.5 and 10, for instance?
Read more…Resonator science
Any science geeks here? I'm new to the resonator thing. Intuitively, I would think that the best kind of cone would be one which provided a domed chamber, so I really don't get the acoustic properties of something like the "lightning" cone, or even l
Read more…Taming a piezo
Has anybody tried a puddle of either hot glue or epoxy for desensitizing a piezo?
Read more…Amps and speakers
As I've said before, I'm pretty ignorant in matters electronic, but trying to learn. I have a couple of Kicker 3" two way car speakers on the shelf. Pretty heavy magnets. Can I use these with any of the amp circuitry kits here or are the power requir
Read more…Amplification
This little guy, which I like to think of as a tenor guitar, but it's really a great big, steel string baritone uke, is about to be resonatified and electrificated. I'm going to put a small cone in the top and use a simple piezo. My question, for tho
