Item Tag : E810F 7788 CV5809

2x Philips E810F (=7788 CV5809 ~D3a), Gold Pins, 1x Siemens Markings, Test 100%

These are very high transconductance wide-band pentodes for industrial applications, with high amplification factor at low plate resistance (triode connection) similar to the famous D3a tubes. Factory codes are d36 Δ1H4 and d3?.
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