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810's, Penta vs. RCA?




 
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June 27, 2022, 08:18:18 AM *
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Author Topic: 810's, Penta vs. RCA?  (Read 265 times)
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KD1SH
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« on: June 19, 2022, 03:05:11 PM »

Thinking of picking up a couple of 810's for a future project. Choice is either RCA or Penta, both NOS. Any opinions?
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WD5JKO
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WD5JKO


« Reply #1 on: June 19, 2022, 04:13:29 PM »

Get both....
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KD1SH
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« Reply #2 on: June 19, 2022, 04:40:10 PM »

My thought, too, but they're not cheap anymore. Like the 4-* glass, they used to pretty much give them away with Happy Meals, but those days are behind us.

Get both....
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W7TFO
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IN A TRIODE NO ONE CAN HEAR YOUR SCREEN


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« Reply #3 on: June 19, 2022, 10:31:04 PM »

^This.

73DG
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Just pacing the Farady cage...
KD1SH
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« Reply #4 on: June 20, 2022, 09:19:18 AM »

   The Audiophools may have discovered the 810, which used to be plentiful. So far they haven't cared much for the 813, which is a good thing.
   I discovered four 810's that I'd forgotten about, picked up at a hamfest somewhere. They're RCA's, in the original boxes and wrapping and looking new, though I'm not sure if they really are. No way to tell how good they are until I build a modulator.
   If I do decide to buy a few more, I figure I'll go with RCA's, just to match the others.
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