6846
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BrandSylvania
ClassBinary Counter Tube
BaseMiniature Button 7 Pin
Construction
Primary TypeCold Cathode
EnvelopeMiniature
SectionsBinary
Filament / Heater
Absolute Maximum Ratings
Plate Voltage400 V
Cathode Current0.8 mA
Audio Performance
Key Features
- Rugged
- Low cost
- Cold cathode
- Four electrodes
- Gaseous medium
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Binary Counter | 400V | - | - | - | 0.5mA |
Application Notes
To change the frequency range it is best to vary the cathode capacitance and leave the cathode resistance fixed in order to maintain approximately equal output voltages. Maximum frequency is obtained with a square wave or sine wave input. Like all counter tubes the anode resistor should be soldered directly adjacent to the socket to minimize anode to cathode capacitance.
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