Could you elaborate why you chosen two corner frequencies and what's the final Fc?
Fc about 37khz at 1260ohm output impedance.
Yes, but they are not for sale at the moment.
On the web i saw some used ll1521 without the "B". I do not know the difference.
Lundahl LL1521 TRANSFORMER Analogue audio, PCB, line input (used)
On the web i saw some used ll1521 without the "B". I do not know the difference.
Lundahl LL1521 TRANSFORMER Analogue audio, PCB, line input (used)
OK thanks.
I understood correctly that you don't use the filter & the isolator, are you using only the transformer?
I have with transformer no filter no noise but a little bit distorsion(0.8%).
With filter and transformer i had 0,1% distorsion. With isolator, filter and tube cathode follower i have 0.04% distorsion. No noise. Isolator has it ones power supply.
I understood correctly that you don't use the filter & the isolator, are you using only the transformer?
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