weber@brand.usc.edu (Allan G. Weber) (02/26/88)
I am in the market for an audio oscillator that will produce an output voltage of up to about 20 VAC (RMS, not peak-to-peak). It will be used to drive an optics device that has a input impedance of over 1 MOhm so it doesn't need much current drive capability. Most standard function generators would work except they typically only go up to about 7 VAC RMS on the output. Frequency range of 100hz to 10kHz would be fine, and I only need sine-wave output. If anybody knows of a device that would do the job, I would appreciate hearing about it. Please respond to me at the address below because I don't read sci.electronics on a regular basis. Alternatively, I could simply use an amplifier to boost the output of standard function generator. Does anybody knows who sells amplifiers that produce that required output voltage? Allan Weber USC Signal and Image Processing Institute Arpa: weber%brand.usc.edu@oberon.usc.edu uucp: ...sdcrdcf!usc-oberon!brand!weber
rmrin@inuxh.UUCP (D Rickert) (02/27/88)
> > I am in the market for an audio oscillator that will produce an output > voltage of up to about 20 VAC (RMS, not peak-to-peak). It will be > used to drive an optics device that has a input impedance of over 1 > MOhm so it doesn't need much current drive capability. I don't have a Radio Shack catalogue handy but they carry a type of audio transformer used for multi-speaker installations in halls, churches, and such like that has a turns ratio that would probably do your job. The low power ones are also pretty cheap. Just drive the transformer with any decent oscillator circuit. -- Dick Rickert AT&T Consumer Products Laboratory