5-tube commercial radio (T1619E)

This commercial superheterodyne receiver was found in a 1949 Radio Electronics. The circuit uses battery.

VHF Preamplifier (CB19599E)
This circuit was originally indicated as a signal reinforcement step for the previous receiver...
Harmonic Distortion Meter (CB26186E)
This complex circuit was found in the 1993 edition of the Electronics Experimenter's Handbook. Most of...
Component Tester (CB26027E)
This simple component tester was found in the October 1997 issue of Electronics Now magazine. The...