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previous: Dave M Brett, I have seen another substitu... -- 7/30/2000 6:35 PM

Re: 7591A Power Tubes?

7/30/2000 6:46 PM
Graywater	Re: 7591A Power Tubes? Folks, First, the 7591 is a very long-lived tube so make sure that you actually do need replace. Second, for lower power designs the 6V6 will retain more of the sound than will the 6L6. Third, the 6GM5 is much shorter than the 7591 so there won't be as much clearance problems with a adapter (and who made these adapters, mine are only about 1" high excluding the tube pins - easy to makle with an old octal tube base and a "Novar" tube socket). Last, the 7591, 7868, and 6GMA ARE the same tube - the assembled tube elements were just placed in different envelopes with different bases. Any discussion as to whether they are really the same tube is silly - get a couple of dead tubes, crackoff the envelope, and compare the guts. GW

7/30/2000 6:46 PM

Graywater

Re: 7591A Power Tubes?

Folks,

First, the 7591 is a very long-lived tube so make sure that you actually do need replace. Second, for lower power designs the 6V6 will retain more of the sound than will the 6L6. Third, the 6GM5 is much shorter than the 7591 so there won't be as much clearance problems with a adapter (and who made these adapters, mine are only about 1" high excluding the tube pins - easy to makle with an old octal tube base and a "Novar" tube socket). Last, the 7591, 7868, and 6GMA ARE the same tube - the assembled tube elements were just placed in different envelopes with different bases. Any discussion as to whether they are really the same tube is silly - get a couple of dead tubes, crackoff the envelope, and compare the guts.

GW

Replies:

Dave M GW,Thanks for clearing that... -- 7/30/2000 6:59 PM