Tested 925/950 on Hickok 752A, where the minimum is 250. Date code 69-22
Triple Mica tube with extra support rods. No Lettering on glass. Not original box.
RCA 6SL7 5691 Red Base Vacuum Tube
- Brand: GE
- Product Code: RCA 6SL7 5691 Vacuum Tube
- Availability: 1
-
$69.99 USD
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Tags: 6SL7, 5691 Vacuum Tube