How to replace a tube

[MG120]

So, I want to replace the pre-amp 12ax7 on my Rogue Audio Cronus Magnum II but I cant figure out how to get it out of the socket. I don't want to pull too hard afraid I will break something...help!

 

[arts]

Just pull upwards while using a gentle sideways circular or rocking motion.Some of the newer sockets (ie Belton) are REALLY tight.

 

[vinylkid58]

You can always use a thick rubber band to get a better grip on the tubes, just don't squeeze too much.

It's poor design to bury the tubes so deep into the top plate that it's difficult to remove them.

jeff

 

[AlphaEcho35]

I have the same amp - do like arts says and grab the tube, roll it around in the socket while pulling upwards. The tubes are not that delicate - I have taken mine out several times.

 

[Audiovet]

Couldn't resist

I come from the era. Had to withdraw hundreds of all sorts tubes: As said, upwards pull, slight rocking motion - and patience!

Good luck.

 

[nj pheonix]

If all else fails.
Sorry, my sense of humor is twisted before I have coffee early in the morning

 

[MG120]

Thanks all..I will give it another shot

 

[E-Stat]

Use gloves to insert the new one as the oil from your hand can affect the tube's glass envelope.

 

[asilker]

It's poor design to bury the tubes so deep into the top plate that it's difficult to remove them.

jeff

But dang if it don't look pretty

 

[MG120]

Got it changed. Thank you for the help.

 

[sKiZo]

Drill a hole in the socket from the bottom and pound it out with an awl ... <G>

Not the first to have issues with tube exchange with the Rogue amps. Not sure why they recess them that far - gotta know folk will have issues with the design, especially us habitual rollers. I recessed mine on a custom build but didn't get all crazy like when doing it.

PS - twere me, I'd consider adding some "socket saver" extensions. Pretty easy to find, eh.

 

[drtool]

sKIZo put up a link to your build, if you got a minute. I looked for it but, I failed.

 

[mkane]

https://www.tubesandmore.com/products/tube_accessories?filters=Type=Adapters

 

[sKiZo]

sKIZo put up a link to your build, if you got a minute. I looked for it but, I failed.

Gotta have a Way Back Machine to find that one ... <G>

http://www.audiokarma.org/forums/index.php?threads/custom-latino-st-120-build.524347/

Been a while, but happy to say the beast is still going strong with nary a problem. Only real change was upgrading to some multi turn pots for the bias adjustments. Lot easier to dial in this way.

(My precioussssss)

 

[drtool]

Coolest st 70 ever sKIZo ,thanks.

 

[GordonW]

Drill a hole in the socket from the bottom and pound it out with an awl ... <G>

Not the first to have issues with tube exchange with the Rogue amps. Not sure why they recess them that far - gotta know folk will have issues with the design, especially us habitual rollers.

I've changed dozens of tubes on Rogue Audio amps over the last decade and a half. Never had any real problems. The sockets can be tight the first couple times they're cycled, but nothing that causes any hazard or real difficulty.

Regards,
Gordon.

 

[Old Guy8]

I very well may be misinterpreting which tube your replacing. From manual, the preamp tube is specified 12AU7, at center.