RCA 8005 tubes

radtech · 26th May 2007, 12:49 PM

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?

SY · 26th May 2007, 01:20 PM

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

Apex Jr · 27th May 2007, 08:18 PM

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

26th May 2007, 12:49 PM	#1
radtech diyAudio Member Join Date: Dec 2006	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?

26th May 2007, 01:20 PM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	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 __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

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27th May 2007, 08:18 PM	#3
Apex Jr diyAudio Member Join Date: Jun 2002 Location: Torrance, Calif	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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