Joined: Jun Fri 18, 2010 1:49 am Posts: 889 Location: Davenport, Iowa 52806
I just bought these 2 blue tubes.
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One has a sticker that says Rytone, amplifier Detector. The other one has a gold sticker that says Western Quality Tubes, brown base. I presume they are UX 201A's ?
Joined: Jan Thu 01, 1970 1:00 am Posts: 1421 Location: Cambridge MN USA
That would be my guess too. Those tended to be the only ones that were fully silvered inside. The earlier 201s (no A) were pretty bright and if you had them in a breadboard set they’d light up the room. I think the silver was to cut down on that when these were used as replacements in such sets. Most later radios were in boxes so it wasn’t as needed for them.
