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In Reply to: RE: 300B IT 1:1 845, A2 possible? posted by sideliner on December 31, 2021 at 07:57:41:
>>Dave Slagle mentioned in another post in this thread, grid impedance in A2 could drop down to around 1.5K Ohm
If the 845 grid drop to 1.5K, there no way to use 1:1 IT with 300B, because the output impedance is nearly the the same as loading impedance
A2 operating circumstance may vary the 845 grid differently
I am guessing the 845 grid starting to enter to A2 would be around 20K, but if we push further positive on grid, it may drop continuously until the extreme case like 1.5K. The intention is to know, when using 300B as plate load driver with 1:1 IT, to estimate how much positive Volt this IT design could produce on 845 grid
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- RE: 300B IT 1:1 845, A2 possible? - Eric Chan 22:02:37 12/31/21 (0)
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