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High voltage rectifier valve. Sixties or early Seventies.
10.5” (26.5cms) total length. 2.25” (6cms)
largest diameter.
Note the double filament, at a
right angle to the axe of
the valve, passing through a
metal loop connected
to one side
of the filaments (see x-ray pictures).
Filament voltage selectable during
installation, 6 or 12 volts, by
the use of “jumpers” in the holes provided in the tube base.
Note the small rectangular gettering metal frame connected to the
anode cylinder, inside the glass wall near the anode end of the valve. |
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