Antique radios, Old Time Radios
6977
|
Country:
United States of America (USA)
|
|
| Identical to |
6977
= CV5412
= DM160
|
| Similar
Tubes |
Normally replaceable-slightly different:
CV6094
Multiple differences or of other kind:
KP-125
; ИВ-15
|
| First Source
(s) |
Jun.1957 : -- Original-techn. papers. Electronics
|
| Filament |
Vf 1 Volts / If 0.03 Ampere / Direct |
| Description |
Bar indicator tube, specifically designed as indicator for transistorized computers. Blue-green bar lights when control grid is at zero potential. Intended to replace HV transistor and neon lamp combination as logic state indicating device.
50VDC at 0.5mA anode in on state; -3VDC on the grid is enough to cut-off plate current. 20,000 hours life. Subminiature tubular body, 4-pin flying leads base.
Amperex or other Philips related plants.
Text in other
languages (may
differ)
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
-- Original prospect or advert Electronics, June 1957, pg.65
|
6977: Valvo Spezialröhren II
Willi Ribbe
More ...
|
6977: rtt
Anonymous 10 Collector
More ...
|
|
6977: valvo Taschenbuch 1973
Anonymous 10 Collector
More ...
|
Collection of
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
