CRT Voltage Calculator
How to use:
Enter your datasheet voltages (relative to cathode at 0V), then specify your desired cathode reference voltage. The calculator will show the adjusted voltages for each electrode.
Datasheet Voltages (relative to cathode at 0V)
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Calculated Voltages (with new cathode reference)
Cathode
-300V
A2
700V
A1 Range
-100V to 0V
G1 Range
-400V to -300V
Voltage Differences (electrode to cathode)
A2 - Cathode
1000V
A1 - Cathode
200V to 300V
G1 - Cathode
-100V to 0V
Trimpot Voltage Divider Calculator
Circuit Configuration:
V_top ----[R_top]----+----[Trimpot]----+----[R_bot]---- V_bot
| |
| (wiper output) |
+------------------+
| |
| (wiper output) |
+------------------+
This calculator finds standard resistor values for R_top and R_bot to achieve your desired voltage range from the trimpot wiper.
Input Parameters
Used for resistor calculation
Used for resistor calculation
Format: 10000 (Ω), 10k, 10K, 1M
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Additional Voltage Pairs (Optional)
See what ranges the same resistors would give with different supply voltages: