Class A/Triode-based preamps

Charles1dad,

I have been working with a buddy how built one and so far it is exceptional. We are now working on adding a transformer attenuator for it.

Triodes are the most linear form of amplification known. Class A operation is also the most linear. So it makes sense that a triode class A circuit will be better, but there are other considerations that affect the outcome!

Atmasphere,
No doubt other factors matter it just seems that the combination of class A, DHT, transformer for interstage and volume control coupled with a large power supply gets the job done. This is the design of my Coincident Statement Linestage and I`m in music heaven as a result.
Regards

I'm curious. Is the volume control before or after the interstage transformer? Is the tube driving the transformer?

Atmasphere,
The owner`manual says signal path follows transformer volume to an input transformer to the 101D tube for gain then to the output transformer.