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Volume at the output of preamplifier matching transformer
Volume at the output of preamplifier matching transformer
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Old 23rd May 2020, 03:58 PM   #11
analog_sa is offline analog_sa  Europe
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Volume at the output of preamplifier matching transformer
Quote:
Originally Posted by Schmitz77 View Post
Its not any longer a balanced output
It is balanced. Only i/p o/p impedance is not constant. Does it matter?
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Old 24th May 2020, 04:11 AM   #12
PRR is offline PRR  United States
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Volume at the output of preamplifier matching transformer
It will pass audio and is adjustable.

If we wanted "perfect amplification" we would not be using tubes and iron. Clearly this is an "effect" used to change sound. Flaws are good.
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Old 24th May 2020, 06:05 AM   #13
Glass_painter is offline Glass_painter  Israel
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Thank you all for the information.

My concern was not to short the output transformer which is never a good thing.

how would this circuit work when the pot is shorting the OP transformer?

Thanks again

Glass Painter
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Old 24th May 2020, 06:46 AM   #14
analog_sa is offline analog_sa  Europe
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Volume at the output of preamplifier matching transformer
Did you read what you were told above? Move the pot to the right side of the 300ohm resistors and all will be well. For the record, shorting the transformer won't blow anything.

Last edited by analog_sa; 24th May 2020 at 06:48 AM.
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Old 24th May 2020, 08:01 AM   #15
Schmitz77 is offline Schmitz77  Germany
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Maybe you'r correct. My fault.

Last edited by Schmitz77; 24th May 2020 at 08:04 AM.
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