Drake L-4, L-4B

Object/Artifact

-

Radio Alpha

L-4: Image: Joe Veras, K9OCO
L-4

Image: Joe Veras, K9OCO

Name/Title

Drake L-4, L-4B

Description

2 KW PEP HF Linear Amplifier

Category

Amplifier, HF

Made/Created

Manufacturer

R. L. Drake Company

Date made

1966 - 1978

Valuations

Value

$695.00

General Notes

Note

QST, Jun 1966, p. 125. QST, Jan 1967, p. 123. The Class B grounded-grid L-4 ran 2000 watts PEP SSB and1000 watts DC input on CW, AM, and RTTY. Drake’s amp used a pair of 3-400Z or 8163 tubes. Quick-heating filaments allowed the amplifier to remain off until needed. A warmup of only 3 seconds was required. The L-4 covered 80–10 meters. Its solid-state power supply was on a separate chassis. L-4B QST, Jan 1968, p. 119. Intro date is late 1967. More power, new tubes. QST, Feb 1971, p. 150. QST, Nov 1971, p. 160. QST, Jun 1973, p. 125. QST, Jun 1975, p. 133. QST, Apr 1976, p. 81. QST, Dec 1977, p. 152.