Who knows how to get rid of tube rattle?

[marshallmel]

I have a 65 Amps Ventura combo. It runs an EF86 tube and I'm experiencing tube rattle from this guy. I've tried different EF86's and I also have a thick rubber O ring around this tube and still can't get rid of it 100%. Just wondering if anyone had any other suggestions.

 

[Bluplirst]

That's a big problem with EF86's in combos. Other than using it as a head I'm not sure you can change that.

 

[JTyson]

Ive run heatshrink around the glass body of the tube with decent results, leave the top section of the tube open for heat transfer.
It dosent work in all situations, but it will do better than the o ring. You could also try to isolate the chassis from the cab with that really dense rubber stuff they put between a pickup bed and a bed cap. You can buy a roll of it a lowes for cheap
Tough to kill that in a combo at any serious volume levels, every little bit helps

 

[Chubtone]

Play a Line 6 amp?

 

[TrueTone500]

Someone makes a socket adapter that is suppose to cushion the effect. My first AC30 was a combo, and I sold it for this very reason. Been using heads ever since.

 

[marshallmel]

There's a 12ax7 in a regular tube socket, but the AT7 and the EF86 don't have the conventional socket and there's a ton of play in both of them.

 

[TrueTone500]

Combos can be problematic, since no two pieces of wood are going to resonate at the same frequency. This is why some combos of the same brand and design have this problem, where others do not. You can coat the interior of the cabinet with Acoust-X, but then this will damped the effect of resonation = changing the sound of your cabinet. May be good, may not be... I would put the chassis into a head cabinet, and run a separate speaker cabinet. You can try placing the combo on an alternate surface. I used a thick piece of hard foam under my AC30 combo, which did help.

 

[gibson08]

There's a 12ax7 in a regular tube socket, but the AT7 and the EF86 don't have the conventional socket and there's a ton of play in both of them.

If I remember correctly the tube sockets are also mounted on rubber, you have already tried a tube damper maybe try one more (2),, did you contact 65? Dan Boul seems like a cool dude, probably give you a pointer.

 

[marshallmel]

There's a 12ax7 in a regular tube socket, but the AT7 and the EF86 don't have the conventional socket and there's a ton of play in both of them.

If I remember correctly the tube sockets are also mounted on rubber, you have already tried a tube damper maybe try one more (2),, did you contact 65? Dan Boul seems like a cool dude, probably give you a pointer.

The rubber damper was a suggestion of Dan. Others on the 65 Amps Facebook page suggested that the new tubes that I got were bad. At $34.00 a tube, that's an expensive crap shoot. That, coupled with the fact that not many tune manufacturers make or offer an EF86, is getting frustrating.

 

[gibson08]

There's a 12ax7 in a regular tube socket, but the AT7 and the EF86 don't have the conventional socket and there's a ton of play in both of them.

If I remember correctly the tube sockets are also mounted on rubber, you have already tried a tube damper maybe try one more (2),, did you contact 65? Dan Boul seems like a cool dude, probably give you a pointer.

The rubber damper was a suggestion of Dan. Others on the 65 Amps Facebook page suggested that the new tubes that I got were bad. At $34.00 a tube, that's an expensive crap shoot. That, coupled with the fact that not many tune manufacturers make or offer an EF86, is getting frustrating.

Yeah, amp troubles can be frustrating . What tubes are you running now?

 

[bananaladonpcp]

I've been having the same issue with my Diezel Herbert. I'm getting tube rattle when I play on the clean channel... I only notice it when I'm practicing at home at lower volumes but it's still an annoyance!

 

[marshallmel]

There's a 12ax7 in a regular tube socket, but the AT7 and the EF86 don't have the conventional socket and there's a ton of play in both of them.

If I remember correctly the tube sockets are also mounted on rubber, you have already tried a tube damper maybe try one more (2),, did you contact 65? Dan Boul seems like a cool dude, probably give you a pointer.

The rubber damper was a suggestion of Dan. Others on the 65 Amps Facebook page suggested that the new tubes that I got were bad. At $34.00 a tube, that's an expensive crap shoot. That, coupled with the fact that not many tune manufacturers make or offer an EF86, is getting frustrating.

Yeah, amp troubles can be frustrating . What tubes are you running now?

I've tried Winged C and Electro Harmonix so far.

 

[gibson08]

There's a 12ax7 in a regular tube socket, but the AT7 and the EF86 don't have the conventional socket and there's a ton of play in both of them.

If I remember correctly the tube sockets are also mounted on rubber, you have already tried a tube damper maybe try one more (2),, did you contact 65? Dan Boul seems like a cool dude, probably give you a pointer.

The rubber damper was a suggestion of Dan. Others on the 65 Amps Facebook page suggested that the new tubes that I got were bad. At $34.00 a tube, that's an expensive crap shoot. That, coupled with the fact that not many tune manufacturers make or offer an EF86, is getting frustrating.

Yeah, amp troubles can be frustrating . What tubes are you running now?

I've tried Winged C and Electro Harmonix so far.

Humm,, I would think that one of those two should have worked ok . Maybe contact one of the tube gurus and see what they think?

 

[marshallmel]

Last night I fiddled around with the placement of the rubber O ring and I got it to go away. Close to the base of the tube seems to be the optimal position.

 

[gibson08]

Last night I fiddled around with the placement of the rubber O ring and I got it to go away. Close to the base of the tube seems to be the optimal position.

I thought everyone knew to roll the rubber down to the base??
Glad you got it straightened out.

 

[Leotis]

Check these out....

http://www.eurotubes.com/eurotubes-Euro ... -Rings.htm

 

[marshallmel]

Someone on the 65 Amps facebook page mentioned those. I'll probably grab a few. They're cheap enough. Lol