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Conclusions of the decatron A-101:
1 K0 0th cathode
2 K9 9th cathode
3 K8 8th cathode
4 K7 7th cathode
5 1pc First subcathode
6 K6 6th cathode
7 K5 5th cathode
8 A Anode
9 К4 4th cathode
10 2PCS Second subcathode
11 К3 3rd cathode
12 K2 2nd cathode
13 K1 1st cathode
Tube A-101 is made in a glass case with 13 leads. Plinth type RSh30.
Cold unactivated cathodes. The tube works in any position.
Decatron A-101 parameters:
Glow color orange-red
Conversion factor 10
Power supply voltage> 450V
Discharge initiation voltage:
In the dark <420V
in the light <375V
Voltage of maintaining the discharge between the anode and zero cathode 130-170V
Sub-cathode bias voltage 36-44V
Reset pulse amplitude 135-165V
Amplitude of the control pulse 135-200V
Output pulse amplitude <20V
Anode working current 0.3-0.45mA
Overload current <1.5mA
Overload time 5min (max.)
Counting speed 0.01-1000Hz
Pulse duration 200-1000μs
Front duration 10-30μs
Ready time <5s
Weight, no more than 50g
Dimensions, no more than Ø31x76mm
Running hours 2000h
Instructions for using A-101:
Set the bias voltage at the control electrodes (sub-cathodes) in the absence of control voltage pulses.
Monitor the operating current in the cathode circuit.
After working at a counting rate <1Hz, it is useful to train decatrons at a counting rate> 100Hz; training time is not less than 20 min.
When the anode voltage is turned on in the decatron, simultaneous combustion of two indicator cathodes can be observed, which should disappear after the supply of a reset voltage pulse.
