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Post subject: scrapping another organ
Posted: Fri May 02, 2014 11:34 am
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Joined: Thu Apr 11, 2013 2:55 pm
Posts: 183
Usually I get a lot of ax7's, but this time only about 8.

Did get LOTSA 6X8's.....and a good pr. of 7591's Lowery marked tubes.
I know these are not very common, so if anyone wants them.....yours for the asking.

Question:
I'm gonna keep some sockets, carbon comps, ect.....but wonder......
There's appox. 6 or more small bulbs that I figure are part of the trem circuit.
Anyone know if these might be interchangable with the optioisolator in my Twin?


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Post subject: Re: scrapping another organ
Posted: Fri May 02, 2014 4:39 pm
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Joined: Wed Mar 31, 2010 12:48 am
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Location: Tombstone Territory
The 7591 is now a relatively obscure and valuable beam power pentode -- don't be too quick to simply give them away. They were commonly used in class AB1 hi-fi amps built by H.H. Scott, Eico, and others. As used in a push-pull output stage they're good for about 40 watts. Vintage used/good examples can bring $60 or more for a pair.

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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