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Old 15th March 2004, 03:35 AM   #1
Ric330 is offline Ric330  New Zealand
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Hi
I,ve played guitar for 30 years, mostly crap guitars through crap
amps. One of those crappies is an early Teisco 30 w solid state.
Can it be converted to a 30 w tube amp. If so has any member tacked something like this before. I'm a "fledgling" DIYER so be gentle. with the jargon and schematics.
Love to hear from ya.
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Old 16th March 2004, 06:35 PM   #2
DougL is offline DougL  United States
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The short answer is no.

The longer answer answer is:

The circutry is changed because you want to change from sand to vacuum.

The output transformers (if present) are Low voltage-high current
The tube transformers are high voltage - low current. Primary reactance for a tube output transformer is anywhere fron 4k to 10k ohms, depending on the output tubes

The power supply is Low voltage-high current. Probably 35V at 3 a or so, verses a tube power supply of 300V at 150 mA to use round numbers.

The only thing left is the chassis.

Understand that I am talking generalities.
I personally think that starting from scratch would be easier.

Good Luck
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Old 17th March 2004, 12:04 AM   #3
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Gnaw, hekker's no.
http://www.dogstar.dantimax.dk/tubestuf/gallery3.htm

Just not something a beginner should attempt. Or even someone who's built and designed a few circuits.

Tim
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