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Audio and Video Talk
Valves / Vacuum Tubes
E80CF and a new phase-splitter
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<blockquote data-quote="Ampdog" data-source="post: 1095388" data-attributes="member: 144"><p>I did not do arithmetic, but much of the reason would lie in Radford having cathode-biased output stages compared to the fixed bias in the ST70. (The cathode drop voltage must therefore be subtracted from the h.t. for the actual EL34 cathode-anode voltage in the Radford.) That is assuming the same power supply voltage - I cannot recall right now.. . .</p></blockquote><p></p>
[QUOTE="Ampdog, post: 1095388, member: 144"] I did not do arithmetic, but much of the reason would lie in Radford having cathode-biased output stages compared to the fixed bias in the ST70. (The cathode drop voltage must therefore be subtracted from the h.t. for the actual EL34 cathode-anode voltage in the Radford.) That is assuming the same power supply voltage - I cannot recall right now.. . . [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
E80CF and a new phase-splitter
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