remove tubes before moving cross town?

Depends.  If it was going in my car, and it would, no. :)

If you were going to have to give them to others to drive along with everything else, I would consider it.

Tubes are sturdier than you'd think though, they were flying in airplane radios long before the transistors came along. :)

Best,

Erik

If in your car then no need to remove them, they will be fine.

Don’t think you have to remove them. I’ve driven to and from the dealer (4 hrs one way) with a pair of mono blocks in the car. Tubes in place.  No boxes BUT I did have each amp in the huge, lower half custom-fit styrofoam block they shipped in. Dealer was okay with doing it that way.

If the tube gear is going to be shipped via FedEx or UPS I would remove the tubes and pack them separately.

If you are bringing the tube gear in your car and they are buckled up or properly secured I would keep the tubes in. I did that with my Jolida 502P amp once when I was bringing it over to a friends house for a listening session.

Void UPS. Taking tubes off won't help if the rest of the unit desecrated. 

IMHO, the main reason for removing tubes for shipping is the possibility of the shipping carton being dropped upside down. This could cause a tube to come out of the socket, then being loose, would surely break.

tls49918 posts07-11-2016 1:25pmIMHO, the main reason for removing tubes for shipping is the possibility of the shipping carton being dropped upside down. 

To void that possibility do not use UPS.

I had no idea cars and trucks could fly back then....

:D :D :D

why would you not....its such an easy assurance against breakage.

Its ok for crosstown put not ok for uptown or downtown.

In case someone generalizes these answers, I might add that I would never transport an amp with a directly heated triode installed (45, 300b,etc.). I would definitely remove these tubes from an amp.

Tubes like those found in more "main stream" gear like that produced by ARC (i.e. 6922, 12AX7, 6550) are quite rugged and as an example, you’d never find a guitar player removing this family of tubes from their amp in order to transport it to a gig.

Cheers,
Thom @ Galibier Design

Inadvertently banging a tube and torquing the receptacles/pin clips in the socket will give you added work- more than simply pulling and replacing the tubes, you may have to tighten or repair the tube socket. In addition, even a relatively "smooth" ride in a car might cause some tubes to become (partially) unseated from the socket. I have found this to be the case even when lifting and moving a tube amp within my room- I always check that the tubes are seated fully.
Thom Mackris’ comments about guitar amps is true, but I seem to remember retainer clips on a lot of tubes for precisely that reason.

If I had to take the tubes out of my guitar amp every time I drove to a session, I'd give up. Maybe audio gear is more sensitive but I'd worry more about bending pins taking tubes in and out than I would a little driving. 

If I owned a $10k tubed amp or preamp, I'd remove the tubes.  
Why risk it?
What are we talking about here, 10 minutes tops to remove and replace the tubes?

I've schlepped tube guitar amps all over the place since the 60s…watched a luggage dude drop an Anvil cased Twin Reverb (with JBLs so it weighed about a ton…it was the 70s dammit) on the runway and it survived fine…amps in car crashes (more than once), knocked over in bar fights…it's not easy being a guitar amp...I also think you're more likely to damage tubes by trying to remove them, so unless your car has no suspension I bet you can make it across town.

What are we talking about here, 10 minutes tops to remove and replace the tubes?

That's the funny part about this and many other threads.  Sometimes the quest for knowledge takes more time than playing it safely does (i.e. removing the tubes).  I'm frequently guilty of this quest for knowledge thing ;-)

Cheers,
Thom @ Galibier Design

I should have made some popcorn

Don't remove them. Reason: it takes too long for the tube pin physical/electrical connections to break in again. Never unplug anything.