Overview

The tube lineup does vary from model to model, but this is a general compilation of tubes cross referenced to the military designations, that are used in the T-368 series for transmitters.

Fortunately, the majority of tubes, aside from the 6000 tube, are available at many hamfests, Or for replacement tubes, see the Resources section.


Main Chassis

DESIGNATION

TUBE TYPE

ALTERNATIVE

APPLICATION

V1

4-400A

 

PA

V2

5933

 

CLAMPER

V3

OA2

 

VOLTAGE REGULATOR

V4

5R4WGY

 

EXCITER REGULATOR

V5

OA2

 

VOLTAGE REGULATOR

V6

OA2

 

VOLTAGE REGULATOR

V7

OA2

 

VOLTAGE REGULATOR

V8

OA2

 

VOLTAGE REGULATOR

V9

4D21

4-125

MODULATOR

V10

4D21

4-125

MODULATOR

V11

5R4WGY

 

BIAS REGULATOR

V12

12AT7

6201

1st AF AMP, 2ND AF AMP

V13

5814

 

3RD AF AMP, 4TH AF AMP

V14

5726

 

CLIPPER

V15

6C4W

 

DRIVER

V16

6C4W

 

CATHODE FOLLOWER

V17

5814

 

SIDE TONE OSCILLATOR

V18

3B28

 

HV RECTIFIER

V19

3B28

 

HV RECTIFIER

V20

5726

 

KEYING DIODE

V21

6AU6

 

KEYING RELAY CONTROL

V22

6AH6

 

KEYING RELAY CONTROL

V23

6AH6

 

PROTECTIVE RELAY CONTROL

 


Exciter

DESIGNATION

TUBE TYPE

ALTERNATIVE

APPLICATION

V101

6AH6

 

2ND BUFFER, 1ST MULTIPLIER

V102

6AH6

 

2ND MULTIPLIER

V103

6AH6

 

3RD MULTIPLIER

V104

6000

 

INTERMEDIATE PA

 


Misc.

DESIGNATION

TUBE TYPE

ALTERNATIVE

APPLICATION

V801

5749

 

MASTER OSCILLATOR

V802

   

1ST BUFFER