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Old 17th October 2003, 04:54 PM   #1
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Default Any Cheap Tube-amp kits out there

I am looking for a cheap tube-amp to expirament. It will be used to drive seas millenium tweeters (6 ohm) as part of an active XO, used at 2200Hz and above, so it does not need to have high output power.

Thanks,
Paul Hilgeman
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Old 18th October 2003, 11:12 AM   #2
MIKET is offline MIKET  United States
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Default Inexpensive Amp

Antique Electronic Supply has 2 kits theK-501 (89.50) and K-502(139.50) which are 8 watts mono or stereo.
or
Check this out
http://s5electronics.com/gpage1.html
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Old 18th October 2003, 04:41 PM   #3
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how built something along the lines of the el34 or a 2a3 at my website
www.geocities.com/nickchua81
power for el34 would be more than 2a3 though
but el34 cost would be much cheaper as a begineers amp. IDHP are cheaper to implement, hum from heater is no a common thing.
of course you could run the el34 into pentode or ultralinear but i don't recommend it for tweeter action.
I would personnaly recommend se, as tweeters don't require much power hence triode are the way to go
mail me if you like to ask something or work something out
i have not work out the cost yet however
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Old 18th October 2003, 06:03 PM   #4
HDTVman is offline HDTVman  United States
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I have built the K-502 MikeT suggested and it is a very nice little amp for the money. It lends itself well to modifing. Some good parts make this simple design sound very good. Is it the be all end all amp of the world, no, but it is a nice amp.

LaterBZ
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Old 19th October 2003, 10:19 PM   #5
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Thanks for all of the replies guys, I will look into building one of these and seeing how I like it. It never really is a problem to have spare amplifiers laying around is it?

HDTV man, where in chicago do you live?

I will be moving to Lake Bluff in 3 weeks.
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Old 23rd October 2003, 12:39 PM   #6
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Pete Millett has a lot of info on low power amps
http://www.pmillett.addr.com

Simplest I've seen is the 6EM7

http://www.valvediy.com/6em7pppg1.html

http://www.diyzone.net/diy/references/tube/6em7PP.pdf
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Old 23rd October 2003, 05:28 PM   #7
Rarkov is offline Rarkov  England
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Have a very close look at:
World Audio Design

Look at their KEL84 or the Kecl82.

Gaz
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