Closely matched pair of NOS tubes branded Philips with Mullard, Blackburn code (B1L1).
Tested 1025/1100 min. 625 and 1325/1350 min 625 on a Hickok 752A.
Philips Mullard 6BL8 ECF80 Vacuum Tube Pair
- Product Code: Philips Mullard 6BL8 ECF80 Vacuum Tube Pair
- Availability: 1
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$24.99 USD
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