** Johnson Audio Amplifier 250-33

Object/Artifact

Radio Alpha

Image: Joe Veras, K9OCO

Name/Title

** Johnson "Audio Amplifier" 250-33

Description

Audio Amplifier

Made/Created

Manufacturer

E. F. Johnson

Date made

circa 1956

Valuations

Value

$73.50

Notes

Kit form

General Notes

Note

The 10-watt 250-33 audio amp was designed to drive the modulator of a high-powered AM transmitter. It included speech filtering and clipping. It had inputs for a high-gain, hi-Z microphone, a remote microphone amplifier, and a phone patch.