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Old 12th February 2014, 07:19 PM   #1
adalin is offline adalin  Sweden
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Default What to do with C3g tubes

So I got a large amount of C3g tubes and Im looking for projects that fits this tube perfectly

So what can you really do with these tubes?

They are really great tubes, the curves look beautiful and the build quality is superb

I feel bad to let them waste away on a shelf

so enlighten me!
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Old 12th February 2014, 07:42 PM   #2
el156 is offline el156  Portugal
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Well, you can send 4 of those for me , i never had one of those, and could include them in my next project
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Old 12th February 2014, 08:03 PM   #3
euro21 is offline euro21  Hungary
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Quote:
Originally Posted by adalin View Post
So what can you really do with these tubes?
1.) Phono
C3g triode-strapped linearity question

2.) First tube of two stage SE amplifier (triode strapped, 18mA CCS, two infra LED bias).
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Old 12th February 2014, 08:06 PM   #4
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Quote:
Originally Posted by adalin View Post
So I got a large amount of C3g tubes and Im looking for projects that fits this tube perfectly

So what can you really do with these tubes?

They are really great tubes, the curves look beautiful and the build quality is superb

I feel bad to let them waste away on a shelf

so enlighten me!
IMO, triode mode for preamplifier with great sound /for 2A3, 6S4S, 6AS7, 1625/... +Uplate = 200 V,...Iplate = 17 ma,...-Ugride = -3 v,....Rcathode = 180 ohm.
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Old 12th February 2014, 08:19 PM   #5
tinitus is offline tinitus  Europe
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how about C3g driving a mosfet split load phase splitter, into a El84 PP ?

is that 'almost' 2-stage ?
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Old 12th February 2014, 08:38 PM   #6
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Smile c3g tube

Hi,

Dont waste them, I'll buy them all if you don't want them.
they where built specifically for the German post, they are special quality - 10,000 hour pentodes for use in AF and RF circuits. This is a very good preamp/riaa tube if you want minimum noise, best if you use them in triode mode. They where, when produced, not for sale to the general public.

Again, if you want to sell some, please contact me.

For more info see attached pdf.
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File Type: pdf C3g-C3m-info.pdf (260.2 KB, 176 views)
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Old 12th February 2014, 09:58 PM   #7
adalin is offline adalin  Sweden
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Well yes I am very aware of what kind of tubes they are and how excellent they indeed are in many ways.

the question is what to build with them.
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Old 12th February 2014, 10:22 PM   #8
lordoff is offline lordoff  Bulgaria
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OK, my best expensive option: Phono End
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Old 13th February 2014, 03:23 AM   #9
multi is offline multi  Australia
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Why only as a triode?
Surely they would be an excellent driver for 2A3's or even 300B's as a pentode.
Or even as a Phono stage!!
Phil
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Old 13th February 2014, 06:39 AM   #10
Stixx is offline Stixx  Germany
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Headphone amplifiers...!

The first one is OTL and was just sold to someone in the UK, the second one is transformer coupled. Absolutely splendid tube!
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