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Western Electric Engraved Base 205d Tennis Ball Triode For Sale

Western Electric Engraved Base 205d Tennis Ball Triode

balltube.txt

WESTERN ELECTRIC 205-D

VACUUM TUBE

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 DIFFERENT SETUP.

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 $).


Western Electric Engraved Base 205d Tennis Ball Triode

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Western Electric Engraved Base 205d Tennis Ball Triode :
$710




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