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Posted: **Tue May 16, 2006 5:38 pm**

I recently found an ameco PT 1.8 to 54 tube preamp. it checks out fine but the tube is missing.I have looked all over and am unable to find a schematic for this or find what tube is suppose to be in it. It is a single tube 9 pin. If someone knows please post or email me. Like i said it is an ameco pt.

Posted: **Fri May 19, 2006 12:23 am**

Oak Hills Research acquired Ameco and may have the info you are looking for.

Posted: **Fri May 19, 2006 1:51 pm**

THANKS ALOT I WILL GIVE THAT A TRY

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ameco PT tube preamp 1.8 to 54

ameco PT tube preamp 1.8 to 54