Now that I have a very quiet preamp indeed, I’m a happy bunny. Changed today the pair of White Westinghouse 26 ST NOS that I’ve been using for over a month with a pair of RCA CX-226 and have to say that I enjoyed a far more sweeter and rounded tone out of this preamp.
Bass is still deep and treble is clear with the sweetness of the globe valve fingerprinted in the tone as you would expect. I will run this setup for a month and report results…
You can still see the clips used to provide earth return at the output to avoid the ground loop that I unnecessary created. God knows how may tweaks I did to improve the HT rail ripple before I realised that it was a simple ground loop.
