Abbott TR-4, TR-4B

Object/Artifact

-

Radio Alpha

Image: Joe Veras, K9OCO: Model TR-4
Image: Joe Veras, K9OCO

Model TR-4

Name/Title

Abbott TR-4, TR-4B

Description

2 1/2 Meter and 2 Meter Transceivers

Category

Transceiver, VHF

Made/Created

Manufacturer

Abbott Instruments Inc

Date made

1941 - 1947

Valuations

Value

$65.00

General Notes

Note

QST, Nov 1941, p. 97. Lafayette catalog number 87 (New York), p. 93. Radio's Master copyright 1942, page H-61. QST, Aug 1946, p. 105. (TR-4B) Lafayette catalog number 88 (1947), p. 99. Radio's Master copyright 1947, page J-9. Radio News, Jul 1947, p. 28. TR-4 was designed for both fixed-station and mobile use on the 2-1/2 meter band. A super-regenerative receiver was paired with a modulated oscillator transmitter in the four-tube set. Required an external power supply. The TR-4B was a post-war version was released to cover the new two-meter band (144-148 MHz). See QST, Mar 1946, page 106, though it doesn't say "B" until Aug 1946. References Converting to 420 MHz. Radio News, Jan 1950, p. 48.