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Tube rolling in the Candela

Hi all. For the Candela owners out there-what do you find to be the best sounding 12au7 and all its myriad variations in your system and what tubes have you tried? Also, I just picked up a Telefunken ecc82 red tip date coded Berlin, 1956. Are the red tips some special designation like medical equipment?

128x128thecarpathian
thecarpathian's avatar
thecarpathian OP
4,857 posts
 
Indeed it is. I have tried several nos tubes including Amperex, Telefunken, Mullard, RCA clear tops, CBS hytron...etc.I find for my system the Amperex 7316 with 'D' getter gives me the cleanest, most pleasing sound.
topside3's avatar
topside3
34 posts
 
Old thread...but I just got a Candela. I've found that any of the NOS tubes are so noisy in the Candela that I just have to go back to the stock JJ's.
rodman99999
6,195 posts
 
@topside3- Have you tried any NOS tubes, from those that are grading tubes, for low-noise application? ie: https://www.upscaleaudio.com/pages/grading-matching and http://vintagetubeservices.com/testing-selecting-procedures/ You might contact Brent Jessee, regarding his methods: http://www.audiotubes.com/12au7.htm
thecarpathian's avatar
thecarpathian OP
4,857 posts
 
Hi, topside3.
 What nos tubes have you tried and who was your source?
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