JFET amplifier stage (CB7523E)

This circuit was found in a 1982 Maplin documentation. The configuration applies to almost any JFET.

Mid-Range Filter (CB25143E)
This midrange filter for sound systems was found in the May 1988 issue of Radio Electronics...
TTL Oscillator with the 7400 (CB518E)
Frequency in this oscillator is given by C1 and C2. The circuit produces square pulses that can...
Low Pass Filter (CB24264E)
These basic filters, the second one being operational, were published in the November 1973 issue of...