P&H DI-1

Object/Artifact

-

Radio Alpha

Image: Joe Veras, K9OCO

Image: Joe Veras, K9OCO

Name/Title

P&H DI-1

Description

"Distortion Indicator" (Modulation Monitor Scope)

Category

Scope, Modulation Monitor

Made/Created

Manufacturer

P&H Electronics

Date made

1961 - 1965

Valuations

Value

$99.95

General Notes

Note

QST, Oct 1961, p. 146. QST, Oct 1962, p. 139. QST, Jun 1964, p. 183. QST, Feb 1965, p. 122. The Dl-1 RF Distortion Indicator assisted in the adjustment of SSB transmitters, displaying trapezoid or RF envelope patterns on its 3 inch scope tube. It operated on 160 meters at power levels of 5 watts to 2 kilowatts;. TT-1: Optional two-tone generator.