1920's Radio Electronic Restoration

Replacing capacitor and resistor in the Atwater Kent Model 20 (1924) TRF Radio

Capacitor: The phone capacitor was open (Value 0.002 uF). Shown below are the steps from original to replacement. From left to right.

Resistor: One of the tube grid damping resistor was way out of tolerance. Should be 600 ohms but read 500,000 ohms. Shown the addition of a modern 680 ohm resistor in parallel and the final product.

Radio completely restored Spring 2012

BEFORE: AFTER: