This is a 1946 post-war model radio. The 3-tube receiver has a long-known tube configuration.
The gain of this amplifier is 10 times and the excursion to the output voltage is 6.0 V (peak to...
The frequency of this circuit depends on the crystal. The transistor supports a modern equivalent. We...
This circuit uses the SQ3524, a switching integrated circuit. The circuit was found in the April...