Bill,
I have one too. Did you find any info? Can you tell me which position the small valves fit in the Concerto?
I have a pair Mullard 8136 and Harma sq6922. Not sure on position?
Tried phoning Art in UK but no answer
Thanks
I have one too. Did you find any info? Can you tell me which position the small valves fit in the Concerto?
I have a pair Mullard 8136 and Harma sq6922. Not sure on position?
Tried phoning Art in UK but no answer
Thanks