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Old 11-06-2006, 07:52 AM   #1
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Ck512ax

Now that tube is easy to remember. I bought one of these cool tubes and after a reformat (now have Suse and OSX86) lost the schematic that was to be used. I plan to build an onboard preamp for a guitar -with a strat's three knobs you'd have some cool options.
There was a guitar tube site where the guy built a preamp in a mint container and used an AA for the heater and a, roughly, 20V battery for the plate. These used to be used in hearing aids it seems. These were of the final tubes ever designed so were possibly some of the best. Well....but..ahh.. this one is only the size of a 5 Watt resistor so it will work. Who needs EMGs?
It would be just awesome in this day of age to plug one guitar cord into any poweramp, aux in, sound card or modeler and be ready to fire some riffs.
Hopfully after initial gaining etheres single enough to drive an eq ciruit.
The Phillips sub is a DF70 which is att.d.

Edit: I found a nice schematic at
http://members.aol.com/sbench101/Bat.../tonestac.html
Attached Files
File Type: pdf DF70.pdf (68.3 KB, 19 views)

Last edited by Guitarist; 11-06-2006 at 08:07 AM.
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Old 11-06-2006, 01:21 PM   #2
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This is the link with the hearing aid guitar amp:

http://www.dogstar.dantimax.dk/tubestuf/gallery4.htm

Look for it at the bottom of the page.

Cheers,
Stephane.
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Old 03-05-2009, 08:41 AM   #3
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It sounds like very well. I will go to see it. hearing aids
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