Jack Elliano/ Electra-Print TX based preamp

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Does anyone know about the transformer based preamp from Jack Elliano/ Electra-Print that's in the current issue of audioXpress?

It uses two $56 step-up transformers and a log taper pot (10k, I believe).

I wonder how this compares to something like the TX-102.

Best,
KT
 
KT said:
Does anyone know about the transformer based preamp from Jack Elliano/ Electra-Print that's in the current issue of audioXpress?

It uses two $56 step-up transformers and a log taper pot (10k, I believe).

One thing you need to be aware of is that the thing has an exceedingly low input impedance. With a 1:8 turns ratio and a 10k pot, you're looking at something on the order of just 150 ohms or thereabouts which is going to limit the source components you'll be able to use it with.

Also, cap coupled output stages, which are intended to drive much higher load impedances may need to have the coupling capacitance increased to avoid unacceptable low frequency rolloff.

se
 
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