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LED tube biasing, pros and cons
LED tube biasing, pros and cons
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Old 21st August 2018, 07:46 PM   #241
jhstewart9 is offline jhstewart9  Canada
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Location: near Toronto
Quote:
Originally Posted by Miles Prower View Post
I don't see how that's possible. This is an old school power transistor that's been around since the '60s. Last time I checked, they were going for under a buck a pop. hfe~ 25; ft= 3.0MHz -- that's pretty awful by today's standards, and you wouldn't want them as audio power finals..

A lot of really decent audio solid state went by the boards (thank the gov't for that) but 2N3054's are not the solid state equivalent of 300B's.

I looked on Mouser & got this. So I quickly lurched to a full stop, gotta be newer & better out there!
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Old 21st August 2018, 09:05 PM   #242
Gnobuddy is offline Gnobuddy  Canada
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Quote:
Originally Posted by Miles Prower View Post
2N3054's are not the solid state equivalent of 300B's.
I've seen old obsolete solid-state parts soar in price, usually because someone building guitar stomp-boxes thinks that germanium 1N34A diodes, or 2N5457 JFETs, or some similar component once used by Jimi Hendrix or David Gilmour, is absolutely vital.

To be fair, I have not seen these soar into the stratospherically-stupid price range of certain pre-WWII directly-heated triodes.

-Gnobuddy
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