[ARC5] 7V and 14V Tubes

[J. Forster]

That logic explains the need for a separate transformer winding, but not
the 5 Volts.

Having a few hundred volts between the heater and cathode of a tube can
lead to failures...  big time. Viz. the AC power supply for the Cabadian
WS19. A 6X4 failure often destroys the unobtanium power transformer.

-John

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>> Only recently I discovered there are some 5V filament tubes around, too,
>> and I have no idea why....
>>
>
> Primarily because it was prudent to have the rectifier tubes on a seperate
> filament winding so that a short circuit or arc didnt take out the other
> tubes..
> For vehicle use there were 6V rectifiers such as the 84/6Z4, 6X5, 6X4,
> 12X4.
>
>
>> Wayne
>> ______________________________________________________________