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Voltage stabilisers (old system) (e.g. 150C2)

Number, letter, number, and sometimes an additional letter

Number is the average burning voltage in volts

1st letter A max 10mA
B max 22mA
C max 40mA
D max 100mA
E max 200mA

2nd figure is serial number

2nd letter - base type E Edison
K Octal
P P-base

This file was last modified 15:52:47, Tuesday September 02, 2014