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I mean laterally? Does it even make a tick tack - tick tack sounds a few times after powering on till it gets warm (for like the first 10-15 minutes)?
And it will even make that "tick tack" sound after the amp is shut off till it completely cools down for like 10 minutes?
It only happens till the tube warms up and cools down and not all the time or anytime in between.
I am thinking about replacing the old sockets with a better sockets but I am not sure if that ticking is from the sockets or the internal of the tubes. It looks like the massive filament structure is ticking as it warms up or cools down.
So, what's your experience with this 6C33C Russian's Jetfighters Regulator Tube?
Follow Ups:
You can say I have some experience with the 6C333, having been a Joule-Electra dealer for many years (I also do repair/maintenance work on Joule gear too) as well have owned/used their amps for many years. Some noise from the plate structure inside the tube as it comes up to temp and cools down is not unusual and is fairly normal for this tube. Some make more noise than others - but I have never noticed any relationship to the amount of noise a 6C33 makes on warm up or cool down and its health.
The problems that I have seen that occur with the 6C33 sockets do not cause tick tack sounds... What I have seen/heard (once) is noise from arcing (which is more like a squealing sound) between a loose/poor socket contact and a pin of a tube. Sure sign of 6C33 socket problems though is black carbon build-up on socket contacts (use a flashlight to look down through the holes to the socket contacts) from such arcing or poor contact between 6C33 pin and a loose/bad 6C33 tube socket contact.
They are terrific sounding remarkable tubes and are built like a tank compared to many other tubes.
Happy Listening,
Rich Brkich
Retailer & Audio Asylum Industry Liaison
I've been running my Joule Electra VZN-80 for about a year and I occasionally hear the sound. Maybe once or twice a listening session and always during warm up or cool-down. I haven't noticed any adverse effects on sound or biasing.edit: FWIW, it sounds like a one off ping or ting sound to me.
Edits: 05/27/15
What you're hearing occurs in most power tubes..... The filaments expanding from heat after power on and contracting from cooling after power down.
I've run power tubes from the 6AQ5 to the 4-1000A. None did what the OP is describing.
--------------------------
Buy Chinese. Bury freedom.
~!
The Mind has No Firewall~ U.S. Army War College.
6.3V 5A current draw can definite produce lot of heat, the tube has several intermittent ticking sound during the warming or cooling period.
Yes, the 6C33 draws a lot of heater current (and plate current for that matter). What you are hearing is the thick glass envelope warming up. Every 6C33 that I have used does this a little bit, it's nothing to worry about. (Despite the other answers from folks who haven't used them)
Don't use that particular tube to play back the Syncopated Clock !!!
Ever tap on glass of various tubes, while the tube-body is against your ear, and listen for differing sounds, as a function of how it is made ??
I have, do.
Jeff Medwin
I am not tapping the glass. It's the clicking sound emitting from the 6C33C tube as it heats up in the initial power up. Same clicking can be heard from the tube as it cools down.
The internal graphite structure of this tube is quite substantial and it has dual heater elements so it runs hot. It seems to me like the internal of the tube is laterally expanding as it heats up and retracting as it cools down.
=The internal graphite structure of this tube is quite substantial and it has dual heater elements so it runs hot.=
- There is no graphite elements inside of 6c33c tube .
=It seems to me like the internal of the tube is laterally expanding as it heats up and retracting as it cools down.=
- Most likely that is the main reason for producing of that ticking sound .
__
"Art which does not have the appearance of art is true art."
- Old Roman saying -
Yes, it's my bad I was thinking it is Graphite. I looked closely and found it's some kind of thick metallic plates adjoining around the heaters. It's nothing like the graphite or the thin metal plate found on the other tubes.
I suppose this gives quite a heft to the weight of the tube but I also think it's more susceptible to the heating and cooling effects inside the tube. Other than the annoying ticking / clicking sound, it's quite a well made tube so I think the subsequent heating and cooling will not damage this tube at all even if it goes on for another 100 year. But the tube life is around 2000-3000 hours or even less in some cases so I guess they are expected to get tossed out sooner than later.
I am approaching ~8000 hours on the current pair that I run, and they are still going strongly.
!
The Mind has No Firewall~ U.S. Army War College.
That's definitely interesting and possible. I've been reading up about these tubes. I once read about someone saying The Gm on this tube increases and as it gets older and it's the time that this needs to get replaced.
I am sure it won't get destroyed or anything after first few thousands of hours.
I appreciates if you and someone can shed more insights on this particular subject.
I would change out the tube. First check the sockets, though. If Chinese made they are notorious for failure. Ticking, the mechanical type is an indication that something is loose inside the glass. A grid post, perhaps a cathode. I consider ticking a time bomb and would get a spare regardless.
Yes, it's what I thought initially and changed out the tube with the new ones. I have a few extra New ones so it's easy enough to investigate.
But I can hear the ticking with the new tubes in the old socket. So, I listened closely (these tubes becoming hot very fast) and I am not sure that clicking is from the tubes or the sockets. I am going to replace the sockets too but I am wondering if anyone else have the same experience with the ticking sound from this tube.
Do the sockets hold the tube pins tightly/ in other words if you tip the amp 9 off, of course) does the tube easily slide out/ if so you do hve an issuewith the socket
Yep the Russian 6C33C tube frequently click when warming up and after shutting down. Mine have been doing it for the last 5 years. Amp is a headphone Eddie Current Zana Deux. Fabulous amp with Senheisser 800 headphones.
David, Thanks for confirming the clicking / ticking sound from your 6C33C tube during warming up and after shutting down.
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