Mullard Holland E810F 7788 CV5809 Valve Tube NOS (V31) | eBay
7788/E810F Amperex Gold Pin Pentode Tube. Designed to operate as a wide band amplifier. New old stock. No longer available for export. MFR: Amperex. SKU: 7788.
Amperex 7788 | E810F - NessTone Tube Sales
VinylSavor: Tube of the Month : The E810F
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7788/E810F Amperex PQ Gold Pin Pentode Tube. Designed to operate as a wide band amplifier. New old stock. No longer available for export. MFR: Amperex. SKU: 7788-PQ.