Western Electric Engraved Base 205d Tennis Ball Triode For Sale
Excellent cosmetic condition: no rattles or loose stuff in the
bulb. Plastic base has a fine crack part way down the side which
does not interfere with insertion in a socket (see photo); the
bayonet side pin is firmly anchored and holds the tube securely
in the socket.
Works well in Magnavox AC 2 amplifier (single stage activated,
90V B+ , Stromberg Carlson Telephone Co. horn speaker, input from
Crosley Model 50 regenerative receiver with CX-300-A tube, ARBE
III battery eliminator power supply). When I attempt to use both
stages, the speaker overloads and distorts unless I turn the tube
filament rheostats down so far I can barely see any glow at all
in the tubes.
I am unable to test this tube further since the Magnavox
amplifier is the only piece of equipment I have that it fits
into. This tube has an unusual locking pin location, offset
approximately 45 degrees from the "normal" position, so
it will not work in most 1920's vintage radios and amplifiers.
Therefore, I CANNOT GUARANTEE HOW WELL IT WILL PERFORM IN A
NOTE: This listing is for ONE TUBE ONLY (second tube and
amplifier in photo are NOT INCLUDED)
Payment via PayPal or personal check
(ship after clear) within the USA. Outside the US, payment by
PayPal ONLY. (Sorry, but my bank charges me a $20.00 clearing
fee on non-USA checks and drafts, even when they are denominated
in US $).
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Western Electric Engraved Base 205d Tennis Ball Triode : $710