Tube Amps / Music Electronics
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|3/19/1997 3:18 PM|
I have an Eico ST 40 hi-fi amplifier that has
output tubes that are 7591A's. I have priced
the tubes and they are very expensive. Is there a more economical sub, or circuit mod to replace with an easy to obtain tube like 5881 or EL 34, 6550.
|john martin I have been replacing 7591s with... -- 3/20/1997 12:26 AM|
Ken Lewellen Al,
Jeff stick with the 7591A -- they are wo... -- 3/27/1997 10:12 PM