WTB Procomm ECC89 matched pairs

Some may recall that I got a ZDT Jr. on extended loan from a good personal friend and forum lurker. Well that friend is asking me to put up a WTB for these because he's tube rolling for the ZDTJ again and there's a fair certainty that I'll be able to hear for myself if there're any significant improvements with these which is why I'm willing to play middleman here.

Shipping will be to an address in Woodside, New York. More than one matched pair desired as able.


Cheers, and hope y'all have a good one!

 

I believe Pro/Comm was a tube rebrander - meaning they cleaned off the markings and labeled them as Pro/Comm. Most of the tubes were sourced as surplus direct from the manufacturer. I think that is either the amp I had or another amp I know about that also had some of those tubes. Anyway, I traced those down to Mullard given the glass marking on the bottom of the tube. They are indeed a significant improvement on the stock 6N24P's they came with.

But I would say to look for Mullard or Phillips ECC89 as you will likely not find very many Procomm tubes.

If all else fails, here are 4 Philips ECC89's - https://www.ebay.com/itm/394055584509

 

Thanks for the input! Will pass along to them, might make it easier to source fitting alternatives. Appreciate it