Home

Valves

Battery Power Output Triodes

One or two watts.

W3
W3

Cossor
LF
LF

Cossor
215P
215P

Cossor
LP2
LP2

Osram
P215
P215

Tungsram
P415
P415

Tungsram
BW602
BW602

Unis

Three to five watts.

PM2
PM2

Mullard
./PM254/PM254
PM254

Mullard
./PM256/PM256
PM256

Mullard
PM6
PM6

Mullard
PX230
PX230

Hivac
stentor2
Stentor 2

Cossor

Fifteen watts.

The PX4 has quite heavy filament current and although directly heated it is more often used in mains equipment.

PX4
PX4

Osram
Andy Cowley 2005    Home