ssh Posted February 15, 2019 Share Posted February 15, 2019 Rockhound sold me another Peach, and I replaced the 12AX7 tubes with Telefunkens. My Khorns and I love the change! Thanks to davis419b sending me an email from Mark Deneen, I just ordered a quad of them for the pCATS. I was going to replace the KT88s, but Mark wrote that the improvement was to be had in the drivers, so I'm looking forward to getting a quad of Telefunken smooth plate 12AX7s from Brent Jesse to go in the pCATS. Don is also sending me a copy of the pCAT manual. Thanks, Don; mine is buried in a pile somewhere. SSH 1 Quote Link to comment Share on other sites More sharing options...
Schu Posted February 15, 2019 Share Posted February 15, 2019 Awesome... Quote Link to comment Share on other sites More sharing options...
ssh Posted February 16, 2019 Author Share Posted February 16, 2019 So, I ordered a matched quad of JJ Blue Glass KT88s to try in the pCATS after I listen for awhile with just the Telefunkens added. SSH Quote Link to comment Share on other sites More sharing options...
rockhound Posted February 16, 2019 Share Posted February 16, 2019 Sellers remorse in full effect damn you Steve lol. Glad the peach is working out was tough to sell it. I'm enjoying the jolida I got from Don waiting on a match quad of el34's to come from Brent, should be here Monday. Quote Link to comment Share on other sites More sharing options...
ssh Posted February 16, 2019 Author Share Posted February 16, 2019 You'll love the Mullards! No remorse here, lol. The Telefunkens really make it shine. SSH Quote Link to comment Share on other sites More sharing options...
kevinmi Posted February 17, 2019 Share Posted February 17, 2019 i really enjoy the Old World tubes as well. Mullards, Teles', Amperex, etc. Prices are really going up, so get a stash while you can! Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 17, 2019 Share Posted February 17, 2019 Its been a while since I had a set of PCats here but I do not recall them using a quad of 12AX7's....maybe just brain fog on my part. Quote Link to comment Share on other sites More sharing options...
ssh Posted February 17, 2019 Author Share Posted February 17, 2019 V2 and V3 on each monoblock SSH Quote Link to comment Share on other sites More sharing options...
davis419b Posted February 17, 2019 Share Posted February 17, 2019 3 hours ago, ssh said: V2 and V3 on each monoblock SSH Correct and Mark said to make sure you get a matched quad ! 1 Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 18, 2019 Share Posted February 18, 2019 Must of had to build up a boat load of gain to drive the phase inverter transformer. If that is the case they probably do make a pretty large sonic change brand to brand. Quote Link to comment Share on other sites More sharing options...
ssh Posted February 19, 2019 Author Share Posted February 19, 2019 26db gain SSH Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 21, 2019 Share Posted February 21, 2019 that is probably the overall gain of the amp.. Quote Link to comment Share on other sites More sharing options...
ssh Posted February 22, 2019 Author Share Posted February 22, 2019 Yes, but actually 29; my fingers are old. The Telefunkens are far superior to the EHs. I had to listen after 48 hrs of burn-in: Detail, tembre and separation of voice and instruments is delicious. SSH Quote Link to comment Share on other sites More sharing options...
ssh Posted February 23, 2019 Author Share Posted February 23, 2019 I didn't expect the JJ Tesla KT88s to make much difference. I was wrong. I like them much better than the EHs. SSH Quote Link to comment Share on other sites More sharing options...
seti Posted February 23, 2019 Share Posted February 23, 2019 The russian made kt88 tubes seem pretty high in quality. Quote Link to comment Share on other sites More sharing options...
Macho Kiljoy Posted March 7, 2019 Share Posted March 7, 2019 Does anybody have Mark Deneen's email? I want to see if he can do a repair to my Blueberry. Thanks. 1 Quote Link to comment Share on other sites More sharing options...
Godataloss Posted March 7, 2019 Share Posted March 7, 2019 33 minutes ago, Macho Kiljoy said: Does anybody have Mark Deneen's email? I want to see if he can do a repair to my Blueberry. Thanks. I don't believe he is in the audio game. He has not responded to my email from more than a year. Craig at NOS Valves is familiar with the Blueberry. What is wrong with yours? I believe there is a known issue about the heat sink loosening on the rectifier IIRC. It led to a failure in my buddy's. It was a cheap/easy repair. Quote Link to comment Share on other sites More sharing options...
muel Posted March 7, 2019 Share Posted March 7, 2019 The fix for mine was when Craig went through and started reheating every solder joint. One was probably broken or had a bad connection due to being slammed around in shipping. Quote Link to comment Share on other sites More sharing options...
Macho Kiljoy Posted March 7, 2019 Share Posted March 7, 2019 I had a rca jack break off. I can get someone else to repair it, but I wanted him to. Thanks. Quote Link to comment Share on other sites More sharing options...
ssh Posted March 8, 2019 Author Share Posted March 8, 2019 That's pretty common. I broke one when I disconnected my original Peach in order to hook up another one that I bought. That whole array of jacks is flimsy. SSH Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.