ghost rider
Active Member
I asked Jim McShane about the 7025 he said they are good tube but no longer in production, so I can keep an eye out for those.Another tube you may want to consider is the 7025, a low noise 12AX7 variant specifically engineered for phono sections. You might also want to keep your eyes open for other black plate variants. I prefer the Raytheon over the RCAs, at least in my phono pre amp.
Yesterday I cut the hole in the shelf above the c2500. It worked out great although quite a feat considering it is a fixed shelf and all the other equipment. My plan is to not put the screws to the cover in and lift it off and remove the unused dac above it and swap out the tubes. I see no reason to try to put the screws back in.
Just in time my sovtek's should get here today, see how it goes. I know there is a burn in time 40-50 hours before they sound good. Is there a tube burn-in device? I did a quick google and got nothing. Something just to power it it up for couple of days. As it is that all I'm going to do with the 2500 when I plug them in to the MC phono stage other than 1 or 2 records just to verify that they work. I'm not going to waste 50 hours on my cartridge just to burn in a tube. Or I could put them in the main stage and play CD's through it.