6Å1Ï
Indicator
tube
Indicator
tube
used for visual tuning. It is used in superhet receivers as an indicator of
tuning in on a station.
Can be used as a recording level indicator in tape recorders as well as in
transmitters and metering devices.
Metal-oxide
cathode of indirect heating.
It
can function in any position.
Envelope:
miniature glass.
Minimum
lifetime: 500 hours.
9-pin
base with button-like bottom.
Green
glow.
Lead
diagram
General
characteristics:
|
Filament
voltage, Volt |
6.3 |
|
Anode
voltage, Volt |
100 |
|
Crater
voltage, Volt |
250 |
|
1st
grid voltage, Volt |
-2 |
|
Filament
(heater) current, mA |
300 |
|
Anode
current, mA |
2 |
|
Crater
current, mA |
<4 |
|
Mutual
conductance, mA/V |
>0.5 |
|
Gain
coefficient |
24 |
