In a message dated 19/06/2009 15:42:15 GMT Daylight Time, optoma...@rogers.com writes:
I was thinking that if I injected a signal with a known waveform I could follow it around the amplification circuits and such. My only real need is to create something that does not appear to already be there. For instance I don't see many triangle waves, if I produced one I could following it around with my oscilloscope. So in terms of frequency just a few hertz would do, heck even 1 would probably be fine. My only concern is that some of the circuits are high impedance and have low voltages. It might be a good idea if I could get down somewhere into the uV range. ---------------------- Then forget distortion specs and HP kit, nice as it is, etc etc, all you really need is the cheapest function generator you can find. Most, if not all, will go down to a few Hz and all should give you a triangular waveform. Frequency calibration is often poor, and output level accuracy too, but that shouldn't matter for what you need. Most do have relatively high outputs compared to decent signal generators but a fixed attenuator to bring it into the range you need, easily knocked up with a few resistors, should fix that and you can then adjust using the built in level control. Building something to match your stated requirements wouldn't be difficult either and shouldn't require anything more than a handful of components costing just a few dollars. regards Nigel GM8PZR _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.