90C1 Valvo Germany Voltage Regulator NOS 1960's (4 for $21.99)
$ 21.99
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90C1 Valvo Germany Voltage Regulator NOS 1960's
4 tubes for $21.99
The Mullard 90C1 is a voltage regulator discharge tube. The tube will strike at 115 Volts and will regulate to 90 Volts for currents of between 1 and 40 mA. The specifications show a regulation of 14 Volts for this range of currents. This would be a wide tolerance by any standard. It is probable that this was intended to supply something like an oscillator that required sensibly constant current.
Special quality versions were made and given the type designation M8206 on a B7G base and M8207 with flying leads.
The thin glass tube envelope is 17 mm in diameter, and excluding the B7G base pins is 45 mm tall.
Type 90C1 was first introduced in 1956
See more: Unknown Type
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