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Behold, Leon Heller scribed on tube chassis:
"Gregg" wrote in message news:aPlPd.44227$L_3.26165@clgrps13... Good lord, what a Goldburg way of doing things. Use one transistor in a phase-shift oscillator configuration and chose your components for the same waveform ;-) Won't work. He has the amplitutude ramping up and down at the beginning and end of the tone. Hi Leon! Sure will, I've done it....by accident ;-) Had a slow-starting conventional phase-shift oscillator once and decided to "fix it".....ended up using the "flaw". Changed the oscillator and adjusted the Re so you get a nice shaped rise on the leading edge, cap from keyside to ground gives you the lead-out and a little 1N4148 in the base-bias keeps her stable across room temprature range from 15 to 25C. IIRC, the xsistor I used was a 2N5088, replacing the existing 2N2222 for more gain control. -- Gregg "t3h g33k" http://geek.scorpiorising.ca *Ratings are for transistors, tubes have guidelines* |
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