Thread: Tube ID
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Old 04-01-2020, 03:15 PM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
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Sam's 255-3 claims vertical output trans has a red & blue primary with 1.6k ohms and a green & yellow secondary with 5.5 ohms that seems to jibe with your measurements/it being a good transformer...colors can fade and a transformer maker can place the lugs or wires anywhere on the transformer they please...you'd have to track down the design engineer that made this and ask them why it is laid out this way.

Theres also a vertical oscillator transformer in this set the grid winding of that is Yel Grn 920 ohms and the plate winding is Red Blue 170 ohms.
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