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Re: Replace 7355 with 7591XYZ?

Ches -

Just make sure that pin 4 isn't used as a tie point in your amp. On the 7591xyz it is a second connection to the screen. On the 7355 it is unused. Occasionally old amps make use of these unused pins as tie-points.

If there is something connected to pin 4 you could either cut pin 4 off of the tube or better yet relocate the wiring to a small terminal strip.

Also the 7591xyz is mechanically larger than the 7355 and may not fit properly in some amps.

Otherwise the substitution should work nicely.



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