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Old 11th July 2004, 08:05 PM   #1
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Default Where can I use this tubes

I have the following tubes but I really don't know where to use this.
Here is the list, any inputs would be greatly appreciated.

13GF7
29KQ6/PL521
17DW4A
IBY2
31JS6C
I6A8
30AE37/PY88
6GH8
6CG8A
33GY7A
9JW8
5CG8
6FS5
4EH7
9R-AL1
6BD11
6DE4
17JZ8A
6FG7
8X9/PCF200
6JN6
3GK5
35W4/HY90
PL84 15CW5
3DT6
2GK5
5U8
10JY8
6X8A
4HA7
6ARII
6BD11
6JZ8
7A8
6SL7
12V6GT
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Old 11th July 2004, 08:51 PM   #2
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the 12V6GT and the 6SL7 can be used to make a nice little single ended amp but I'm not familiar with the rest of them. Surely Eli, Frank or SY ( not necessarily in that order ) can help you with some of the other ones.
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Old 11th July 2004, 09:11 PM   #3
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Quote:
Originally posted by G
the 12V6GT and the 6SL7 can be used to make a nice little single ended amp but I'm not familiar with the rest of them. Surely Eli, Frank or SY ( not necessarily in that order ) can help you with some of the other ones.
Gavin

Thanks for your reply. That would be a good starting point for a next project of mine.

Hope to make use of those tubes for audio projects in the near future.
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Old 11th July 2004, 09:41 PM   #4
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You are most welcome. Good luck in your project. Let us know here at the forum if you need any help.
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Old 11th July 2004, 09:41 PM   #5
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Hi,

Unless you really want to put them to use in audio applications most of the tubes on the list are either for TV use or were used in older radio sets and such.

The easiest way to go about it IMO is to run them through Duncan Munro's database program:

TDSL

Some of them can be used indirectly:

For instance the 13GF7 can be used in a series regulator, 5U8 is a rectifier, PL84 is the 15V heater version of the EL86/6CW5, etc, etc.

If you should have questions about the usabilty of a particular type for audio, just ask.

Cheers,
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Old 11th July 2004, 10:00 PM   #6
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Quote:
Originally posted by fdegrove
Hi,

Unless you really want to put them to use in audio applications most of the tubes on the list are either for TV use or were used in older radio sets and such.

The easiest way to go about it IMO is to run them through Duncan Munro's database program:

TDSL

Some of them can be used indirectly:

For instance the 13GF7 can be used in a series regulator, 5U8 is a rectifier, PL84 is the 15V heater version of the EL86/6CW5, etc, etc.

If you should have questions about the usabilty of a particular type for audio, just ask.

Cheers,

Franks

I'll install the Tube data sheet locator and will try to check its specification.

Can you recommend a good site for studying vacuum tubes?

Thank you very much.
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Old 11th July 2004, 10:10 PM   #7
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Hi,

Quote:
Can you recommend a good site for studying vacuum tubes?
Sure.

Besides books there are quite a number of sites with very useful information about the use of vacuum tubes for audio.


The best known, I think, is John Broskie's The Tubecad Journal.

TUBECAD

Another must read series of articles by Norman Crowhurst can be found here:

AUDIO CLASSROOM

The same site carries a number of books and various references for the serious builder as well.

Cheers,
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Old 12th July 2004, 12:34 AM   #8
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Frank, 5U4 is a rectifier. 5U8 is a triode-pentode which comes in handy.

Sounds like TV tubes, the sweeps could be used for output and such triodes, pentodes or triode-pentodes can be used for preamp and driver circuitry.

Tim
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Old 12th July 2004, 12:50 AM   #9
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Hi,

Quote:
Frank, 5U4 is a rectifier. 5U8 is a triode-pentode which comes in handy.
Quite right, like 6U8/ECF82 sometimes used as a splitter/driver...
Radford, I think.
The Russians have a rectifier that is sometimes erroneously written as 5U8. (5C8S according to TDSL).

Anyway, provided there are at least a few of the more interesting types available, some nice stuff can be built with some of the tubes on that list.

The 12V6 is definetely a good tube to work with and there should still be plenty of NOS ones around.

Cheers,
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Old 12th July 2004, 03:24 AM   #10
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Quote:
Originally posted by fdegrove

Quite right, like 6U8/ECF82 sometimes used as a splitter/driver...
Radford, I think.
Williams, I think.

Tim
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