Oops, I lost the tube type.
Depends of the operating point.
8-12k or 64..95H ... but anode current is much larger (for example 25..30mA), so dissipating surface (heatsink) is large.
Size of the choke/transformer (large current+large inductance==larger core, larger current==thicker wire==larger core==larger weight) would be large too....the price would go to the sky.
In the R load case the B+ would be uncomfortably large.
Both of them has negligible PSRR, so regulated supply is needed: cost, cost, cost...
BTW when I tested it -for example- only with 100H choke/OPT as anode load, it was much more worse (higher THD, changed -not so good- FFT spectrum), than with higher impedance load (gyrator/CCS).
p.s.
If you use this tube with R or choke load mode, the output impedance will be practically unusable large (even over 5k).
Depends of the operating point.
8-12k or 64..95H ... but anode current is much larger (for example 25..30mA), so dissipating surface (heatsink) is large.
Size of the choke/transformer (large current+large inductance==larger core, larger current==thicker wire==larger core==larger weight) would be large too....the price would go to the sky.
In the R load case the B+ would be uncomfortably large.
Both of them has negligible PSRR, so regulated supply is needed: cost, cost, cost...
BTW when I tested it -for example- only with 100H choke/OPT as anode load, it was much more worse (higher THD, changed -not so good- FFT spectrum), than with higher impedance load (gyrator/CCS).
p.s.
If you use this tube with R or choke load mode, the output impedance will be practically unusable large (even over 5k).
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