Re: Murphy V310 1957.
Not so far John. It is fitted with special 30P4 line output valve [30P4MR] but none of the circuit mods have been carried out prior to the introduction of the separate line oscillator.
It must have been one of the few that performs as Murphy had originally intended.
Hello Alan. I think it was easier to retain the correct black level that simple mean level AGC destroys.
The fringe model had full [gated? service manual not to hand] vision AGC and flywheel sync but was of course more expensive.
John.
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