In Reply to: RE: 300B IT 1:1 845, A2 possible? posted by sideliner on December 28, 2021 at 09:43:11:
Hi Sideliner,
I assume 360V p-p (180V peak) swing should bring me to expected output power. I use 10K output tranny
180V x 4.77 (845 mu x 90%) / 36 (10K:8) x0.707=16.9V rms
16.9V square / 8 ohm = 35 watt
But my 845 plate volt is only 910V, meaning my A1 is only up to 125V peak at grid, meaning 18watt A1, to reach total 35 watt the grid need positive voltage of (180-125=55V)
However, the deeper in A2 the more substantial decrease of grid impedance
Yes, the standing current need increment. I simulate the load line with 50mA and ASSUME tge grid drop to 5K ohm in the attached diagram
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Follow Ups
- RE: 300B IT 1:1 845, A2 possible? - Eric Chan 22:46:38 12/28/21 (4)
- RE: 300B IT 1:1 845, A2 possible? - sideliner 07:51:34 12/30/21 (3)
- RE: 300B IT 1:1 845, A2 possible? - Eric Chan 01:09:40 12/31/21 (2)
- RE: 300B IT 1:1 845, A2 possible? - sideliner 07:57:41 12/31/21 (1)
- RE: 300B IT 1:1 845, A2 possible? - Eric Chan 22:02:37 12/31/21 (0)