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Audio and Video Talk
Valves / Vacuum Tubes
GE 7581a tube anyone?
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<blockquote data-quote="Qualityten" data-source="post: 861657" data-attributes="member: 17776"><p>Regarding Ampdog's points about 7591A valves. The point I made in an earlier post about them is that although it is a 6L6 in operating conditions, the pins have been named changed to correspond to this of a 7591. I.e. It was offered as a rough plug-in replacement for 7591s when no new ones were being made.</p><p></p><p>This means that if 7591As are used as 6L6s, sockets must be required accordingly, with changes to the connections to pins 5, 6 and 8.</p><p></p><p>I hope that's helpful. I know the discussion is about 7581 and 6L6 valves. Just picking up on fredeb's post and pictures in #3 above.</p></blockquote><p></p>
[QUOTE="Qualityten, post: 861657, member: 17776"] Regarding Ampdog's points about 7591A valves. The point I made in an earlier post about them is that although it is a 6L6 in operating conditions, the pins have been named changed to correspond to this of a 7591. I.e. It was offered as a rough plug-in replacement for 7591s when no new ones were being made. This means that if 7591As are used as 6L6s, sockets must be required accordingly, with changes to the connections to pins 5, 6 and 8. I hope that's helpful. I know the discussion is about 7581 and 6L6 valves. Just picking up on fredeb's post and pictures in #3 above. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
GE 7581a tube anyone?
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