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Old 23rd July 2003, 11:23 PM   #1
diyAudio Member
Join Date: Jun 2003
Location: Harvey Mudd College; Claremont, CA
Default i've got these tubes here, and i don't know what to do with them

anyways, i got the old tube radio from my uncle. unfortunately, he doesn't have the power transformer that came with it originally, so it's useless. i did however, steal the tubes out of it. is there anyone here that could tell me what these do and what's the best use for them?

6BA6 (2 of these)

they're all made by magnavox

thanks for any help you can give me
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Old 23rd July 2003, 11:40 PM   #2
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Location: Belgium


Just thought I'd correct the references.

Yes, they're all clearly radio tubes, only the 6DT8 ans 6EU7 are possibly of any use in audio.

The typical use of your tubes can be read from the datasheets here:


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Old 24th July 2003, 04:26 AM   #3
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Location: Harvey Mudd College; Claremont, CA
Default that helped, but i really have no idea what i'm doing

so i could use these as amplifiers, correct? what would the schematic for that look like?

thanks for fixing my errors. the writing was kinda rubbed off, so i had to guess
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Old 24th July 2003, 04:49 AM   #4
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The 6EU7 could be used in a Magnavox EL84/6BQ5 clone. But you'll need 2.

Haven't heard this amp, though some people seem to think it's pretty good. But I wouldn't build an amp design based upon having one suitable tube.

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Old 24th July 2003, 06:01 AM   #5
SHiFTY is offline SHiFTY  New Zealand
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Location: New Zealand
Sorry, they are nearly useless. And if you did want to use them, you would need a power transformer anyway!

If you want to build a simple cheap valve amp try http://www.dogstar.dantimax.dk/tubestuf/miniblok.htm

Of course if you are building a guitar amp, two words: Fender champ. Download the circuit, get the parts, and go for it.
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