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Old 26th May 2007, 01:49 PM   #1
radtech is offline radtech  United States
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Default RCA 8005 tubes

We're remodelling our shop at work, the place is 50 years old and has collected a lot of stuff over the years, they want to 'modernize' the place, so a lot of old things are headed for the dumpster... or the trunk of my car if I see them first! I've picked up some pretty good stuff so far, including a couple of Tektronix scopes (453 & 453A).

Yesterday I came across a pair of tubes that look to be new in the boxes, RCA 8005, and was wondering if they'd be good for an audio project... since I've only got the two it would probably be a pair of SE amps.
Anyone have any experience with these things?
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Old 26th May 2007, 02:20 PM   #2
SY is offline SY  United States
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They're the same as V70D. I used to use them in my old ham transmitter. They'll be tricky but not impossible to use for audio service. You'll need to design a driver capable of driving grid current into a significantly nonlinear load. And, of course, the usual execution-level plate voltages.

Data sheet:

http://frank.pocnet.net/sheets/049/8/8005.pdf
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Old 27th May 2007, 09:18 PM   #3
Apex Jr is offline Apex Jr  United States
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If I'm not mistaken these are the tubes used in the
350 Watt RMS McIntosh MC3500.. and also in the
Industrial version MI-350...

Very good tube...

Steve
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Old 11th October 2014, 06:08 PM   #4
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The Mcintosh MI-200 also used the 8005 tube.
The schematic was published in Vacuum Tube Valley, linked in the page below:
links
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