Thanks for reply
another issue, the trans is rated 10k:10k. What values should I use for the divider resistor, lets say if i want to use it to drive 2a3?
I am using 50k on each leg (if my memory is not failing). It depends on the max grid leak resistor you can use and on the tranny: you can find the best value using a o/scope and looking for resonances, freq response and square wave steepness/ripples.
Make sure the resistors are matched: I am using 2*100k 1% in parallel for each leg to minimize the mismatch.
Ciao.
Make sure the resistors are matched: I am using 2*100k 1% in parallel for each leg to minimize the mismatch.
Ciao.
skyraider said:
it will work but the asymmetry in capacitances and swing will make the 2 signals very different, especially at higher frequencies.
best
mmm that's not my case as my IT is PP to PP, but I splitted an input tranny that was not coming with a CT using a couple of resistors.
I did not notice anything odd with my o/scope ... what should I look at?
ciao
I did not notice anything odd with my o/scope ... what should I look at?
ciao
Gluca said:
Ciao Gluca
You may apply a squarewave (1 to 10 kHz) to the input of the tube, and watch both output of both halves. These should remain equal in bandwidth, phase and amplitude.
best
Oh thanks. I did and I rememeber they looked pretty much the same ... I assume this is not an issue with my input tranny hooked up that way.
Great tip for the future.
Re
Gianluca
Great tip for the future.
Re
Gianluca
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