Modulator Amplifier (V1574E)

This circuit is from a 1938 tube manual. Transformers are the critical components. Component values are given.

Jumper Premo Flex FFC FPC - Molex
Molex is using the FFC / FPC Premo-Flex jumpers for inter-board and inter-plate interconnects...
Differential Amplifier (CB6546E)
This circuit was found in an American publication from 1968. The transistors are from the time,...
Logic Controlled Ramp Generator (CB13931E)
This circuit is from 1971 documentation. It generates a ramp given by the input signal. The FET...