MOSFET Stage (CB25576E)

This circuit shows how to use the 4007 MOSFETs in an amplifier stage. We found it in an Electronics Now issue from May 1993.

High Pass Filter (CB6240E)
This National Semiconductor circuit appears elsewhere on this site. The circuit must be powered by...
Blocking Oscillator (CB19576E)
In this circuit the frequency is determined by the coil and the variable capacitor. Transistors like the...
VHF Modulator (CB5365E)
This circuit is from old American documentation, but the transistor used is still very common...