Tube Rolling w/Crack
- Thread starter Dr. Toobz
- Start date
mcandmar
New member
http://www.ebay.co.uk/itm/5-x-CV491-ECC82-Electron-tubes-high-spec-Unusual-with-blue-print-/151506812480?ssPageName=ADME:B:SS:IE:3160
Another source for RFT tubes, this time in a military guise. I believe the CV491 designation was for tubes that were subject to stringent testing. I already bought a set of these and they all tested exactly the same.
Another source for RFT tubes, this time in a military guise. I believe the CV491 designation was for tubes that were subject to stringent testing. I already bought a set of these and they all tested exactly the same.
Hey guys, I'm struggling to find the right driver tube to complement my hd800. Currently using the ts5998 which I love. The stock drive tube was noisy. Then I tried some RCA and Conn clear tops. They didn't do much for me. I'm looking for a lusher sound and a little more bass.
Suggestions are appreciated.
thanks...
Suggestions are appreciated.
thanks...
Klots said:
A little update: It is not the tube. I put my GE 6AS7GA tube in again and have been listening for a few hours. It makes the noise too, slightly different from 5998 but still. If I tap on the tube then it goes silent and then starts again. This mystery sound is only heard in left channel. What component in Crack could make the output tube to sqeal? All ideas welcome. Thanks!
borism said:
I will resolder all pin connectors tomorrow. I bought two new sockets (same that comes with crack) and I will replace the tube socket when they arrive. Just to see if that changes anything. New clean solderjoints to all pins.
Small update: If I unplug headphones and plug them in again, it goes quiet and then in some time it starts again. That headphones out and in works everytime.
MattTCG said:
How bout a less resolving tube that's orientated towards warmth? I found the TS5998 to be sibilant at times with a wrong combination of input tube and headphones so less high end, less resolving, more bass does the trick. Problem is there aren't many tubes that fit your bill other than the Sylvania GB6080 and the Bendix 6080WB
If you can get a Bendix tube it might just do the trick. It's a superior tube to the 5998 with tighter bass and faster pace overall
Nick Tam said:
Welcome to my world. Before you talk something up on the Internet make sure you own most of them. When we started Tape Project a Technics RS1500 was worth about $250. A year later you could sell them all day long for $1200. I wasn't smart enough to buy every one I could find before we started.
picked up pair of Bendix 6080WB's, one of them has an audible "tick" sound inside of it that happens every 2-5 seconds (keeps ticking until it cools off after i take it out too) and it's driving me nuts. is it a bad tube? anything that can be done?
oh good and the other one i can't even type on my keyboard without getting microphonics through the right channel.
gotta love ebay.
oh good and the other one i can't even type on my keyboard without getting microphonics through the right channel.
gotta love ebay.
JamieMcC
Active member
remedy said:
I have had a brought a few nos graphite plate tubes in the past most have suffered from pops and ticks. I left mine running for a couple of days straight with a old pair of phones I use for testing and they have settle down with running in. I also brought a bunch of used ones from equipment pulls they all tested at nos level and all of them ran nice and quiet.
The ticking sound could be the glass heating up. On tubes with very thick glass, this can take a long time (an hour or so on 6C33' in my experience).
Yes, it is. That is a pretty reasonable price as well.
