Here it is.
You can use either a source of 0 Ohm or 50 Ohm by changing the value of {Cx}.
Input is at the top, output has to be loaded with 10 Ohm.
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Thank you so much Hans
Now I have another question..... is it possible to use your tech http://www.diyaudio.com/forums/anal...universal-diff-diff-head-amp.html#post5428617
To eliminate current in the IPS on the original Paradise ?
Now I have another question..... is it possible to use your tech http://www.diyaudio.com/forums/anal...universal-diff-diff-head-amp.html#post5428617
To eliminate current in the IPS on the original Paradise ?
It was not my intention to be so active in Joachims thread.
Maybe you should ask the question in the other thread and explain the same time what you mean with IPS.
Hans
O.k. a quick sim, all BC-327/337(40)'s
Gain about 28dB
Noise about 24nv/Hz1/2
THD near -85dB
PSU-load 75mA
As one can see, the design has a 'not do good' PSSR and the 75mA (per 15V rail) is thus demanding, it (the PSU) needs to be firm and precise.
The output offset (with the ideal transistors) is 11mV (not to bad at all).
Gain about 28dB
Noise about 24nv/Hz1/2
THD near -85dB
PSU-load 75mA
As one can see, the design has a 'not do good' PSSR and the 75mA (per 15V rail) is thus demanding, it (the PSU) needs to be firm and precise.
The output offset (with the ideal transistors) is 11mV (not to bad at all).
P.S. the calculated noise of Zion is 351nV/Hz1/2 (1kHz) and 232nV/Hz1/2 (10kHz) at a gain of 60dB (more than 100x 28dB 🙂) and including the passive (parallel) RIAA correction.
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With other transistors noise of the circuit I have shown will be lower. Anyway, I did not put it here because I think it is great. It is for completeness and maybe inspiration.
