120-A
120-CP
121-A
121-B
121-C
122
130
200-A
200-B
209
210-E
210-F
214-A
222-A
222-B
222-C
222-D
223
233
240
250
265-A
272
280
290
296
299-A
299-B
299-C
299-D
310-B
310-C
311-A
311-B
311-C
311-D
340-A
340-B
345
355
380
399
99-A
99-B
99-C
99-D
LC-21
LK-30
LK-48-A
LK-48-B
LK-72-A
LK-72-B |
TWIN TRIODE,
HIGH-MU
Tube Data provided by
Duncan
Amplification
Miniature
type used as phase inverters or twin resistance-
coupled amplifiers in radio and audio equipment. Requires
miniature 9-contact socket. Each triode unit is independent
of the other except for the common heater.
Download Duncan's utilities and tube database software.
 
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