5-tube commercial radio (T1619E)

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

4mA at 20 mA Generator with the XTR115 and PGA309 (CB12803E)
The presented circuit is suggested by Texas Instruments (www.ti.com) in its Application Report...
LM5022 Q1 Low Side Controller for 60 V (COM023E)
June 2016 - Mouser Electronics is providing the controller with N-channel MOSFET for IGBTs and...
MOSFET Power Timer (CB11594E)
Closing and opening S1 for a moment to charge the capacitor, the transistor conducts the load. The...