We found this circuit in the 1977 RCA Solid State ICs. The circuit consists of a current amplifier with a gain of 1000. The supply must be made from a symmetrical source.
This circuit is suggested by National Semiconductor and makes use of the negative regulator LM2990...
This circuit was found in a 90s Radio Electronics. MOSFETs must have excellent heat sinks and heat and...
An oscillator slightly different from the previous one also appeared in Radio Electronics magazine in...