My Ypsilon Aelius II have got 2 kinds of tubes in the input: EZ81rectifier tube by JJ and a EC8010 NOS by Siemens. A socket on the same input board labeled "6c4p" remains empty. (A leftover from updating version 1 to 2? (I bought 2nd hand.))
I just ordered a matched pair of EZ81/6CA4 NOS by TESLA (77€ at Tube Amp Doctor Germany) )to experiment, will report.
If you have experimented with tubes in the Aelius or can suggest replacements from other tube rolling experiences I would be greatful for hearing from you.
Thank you
Charlie
I just ordered a matched pair of EZ81/6CA4 NOS by TESLA (77€ at Tube Amp Doctor Germany) )to experiment, will report.
If you have experimented with tubes in the Aelius or can suggest replacements from other tube rolling experiences I would be greatful for hearing from you.
Thank you
Charlie