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Another trick along this same line is to remove the paper cone from the speaker. It still loads the amp pretty much the same, but it doesn't make any sound. Then with Dave's little line out box, you're set. Of course, you might want to do this with a second speaker before you destroy the one you have. also, with the line out box, I think you want two resistors to make a voltage divider. the second one would go after the series R and connect to ground. Just one resistor in series with the jack could still give you a pretty large voltage swing, likely to clip in a line level circuit. The value of the second R would set the level of the line signal, so that will probably depend on the amp. You might even use a pot. kim At 04:13 PM 11/5/97 -0600, Dave Stagner wrote: >You could try making a "line out" for the guitar amp. It won't capture >the sound of the speaker, but it should get the basic flavor of the amp, >at least (it also won't silence the speaker, if that matters to you). > >Get a little project box. It needs on 1/4" jack going in, and two 1/4" >jacks going out. The input jack should be connected to the regular >speaker jack on your amp (use the same grade of wire for this that you >would for speakers!). For the two output jacks, wire them in parallel. >Put a 1000 ohm 5 watt resistor in series with one of the jacks. This is >the line out. You should be able to plug it directly into mixers, >effects, etc. Make sure the speaker is plugged into the other jack! It >is bad for tube amps to not receive a proper load. > >This circuit should have negligible effect on the sound of your amp and >speaker, and require no internal modifications that might hurt the value >of your vintage amp. It also gets all the sound of the amp/speaker >interaction and the power tubes, which is what makes classic amps sound so >great. It won't get the last bit of "air" from the actual cone, but it's >close. It'll cost you about ten bucks in parts at Radio Shack, and a >little bit of time with a soldering iron, and requires almost NO >electronics knowledge! > >Try it and see. > >-dave > >By "beauty," I mean that which seems complete. >Obversely, that the incomplete, or the mutilated, is the ugly. >Venus De Milo. >To a child she is ugly. /* dstagner@icarus.net */ > -Charles Fort > > > > ________________________________________________________ Kim Flint 408-752-9284 Mpact System Engineering kflint@chromatic.com Chromatic Research http://www.chromatic.com