Another pair of Sylvania 6SN7’s, black plate chrome tops. These have red letters, other pair is green letter.

January 27, 2025 - 00:22 UTC

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I like your tube display. Are you able to change the heater voltages or is it a fixed 6.3?
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Thanks, so far I’ve only used the Radio Shack transformer for the 6.3 tubes I’ve shown so far.
Except for the 5U4G rectifiers and the 300B’s everything I got is 6.3
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Here are my Sylvania Baldwin organ branded 6sn7s. One has a suspicious looking getter.
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Yeah, I had an 807 lose vacuum, same look, shame, nice tubes.
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Psvane 6sl7. Pretty good looking tube!
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I got a pair of their 6SN7’s, really like the bottle shaped tubes.
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