03-01-2018, 11:19 AM
A 1953 Philips (Holland) publication describes the design and construction of a 625 CCIR television receiver in which we find all the familiar series heater chain valves are employed. The Philips "World Series" valves, EF80, ECL80, PY81, PY81 etc.
"Live" chassis technique TV receivers were commonplace in Continental Europe.
In fact 0.3amp heater versions of valves not used in UK made TVs were made. Examples are the PL95 and PLL80 audio output valves.
However, parallel heater supply television valves were available for use in high quality receivers. EL36, EL504, ECL85, EY88 etc.
Geordie McBoyne.
"Live" chassis technique TV receivers were commonplace in Continental Europe.
In fact 0.3amp heater versions of valves not used in UK made TVs were made. Examples are the PL95 and PLL80 audio output valves.
However, parallel heater supply television valves were available for use in high quality receivers. EL36, EL504, ECL85, EY88 etc.
Geordie McBoyne.
