6SN7 Preamplifier (T1105E)

This preamp circuit has a typical configuration as found in a 1946 publication. Supply voltages are indicated.

Unijunction Triac Control (CB25861E)
This power control circuit was found in an article in the June 1995 Electronis Now magazine. The...
Ice Alert and Lights On (CB4965E)
This circuit for vehicular use is from an 80's American publication. The circuit has a light...
Antenna Amplifier (CB25885E)
This circuit can be used with 3 receivers and is intended for low frequencies (medium wave range). We...