Random tube matching nugget

[g1]

How about "barbless" bear trap style retainers?

[Leo_Gnardo]

The thought of tagging birds and other critters before releasing them back into the wild comes to mind. Do you keep these measurements and install dates recorded somewhere?

FWIW I tag the amp's interior, with bias current & voltage, hi voltage at no signal and clipping, output tube type/brand, new/used, & date before bolting back into its box. Pc and Tc measurements on tube bases* & also on tag. Avery 5202 labels intended for file folders have good stickum, tends to stay in place over the course of years. Yes, sort of a tag-and-release program for amps. Good to compare stats when an amp comes back for service, and other techs have occasionally noted my tags. Some see the sense in doing that. Others just razor tags out preferring to not leave any information available to customers or future repair techs - mushroom theory - keep 'em in the dark and feed 'em crap.

*when they have bases. No labels left on EL84 for instance, roasting labels stink up the place.

[ThermionicScott]

FWIW I tag the amp's interior, with bias current & voltage, hi voltage at no signal and clipping, output tube type/brand, new/used, & date before bolting back into its box. Pc and Tc measurements on tube bases* & also on tag. Avery 5202 labels intended for file folders have good stickum, tends to stay in place over the course of years. Yes, sort of a tag-and-release program for amps. Good to compare stats when an amp comes back for service, and other techs have occasionally noted my tags. Some see the sense in doing that. Others just razor tags out preferring to not leave any information available to customers or future repair techs - mushroom theory - keep 'em in the dark and feed 'em crap.

*when they have bases. No labels left on EL84 for instance, roasting labels stink up the place.

That's cool. I recapped a friend's '66 Champ a few years ago, and in the process installed a 3-prong cord. I took the opportunity to build a CRC filter ahead of the OT to drop the B+ from 438(!) volts to a more sensible 360V and kill the single-ended hum -- the RCA 6V6GT showed its appreciation by not redplating anymore.

The scratchy volume pot was replaced and a grid-stopper added to the 6V6 as well. In the end, I decided to leave a similar note in the chassis to describe everything I'd done to the next guy who might open it up. Love the "mushroom theory" verbiage!

[cyclone]

I document the plate voltage and neg bias voltage when retubing, and write "mod under protest" in the chassis with my initials when a customer insists I do something that I feel detracts from the sound or functionality or value of a nice piece. I take pics and give them the old parts back in case....

I had a guy bring me a nice 70's eds 1275 gibson and he wanted a stock gibson pickup selector mounted in between the two necks. No f'n way am I doing that. Sad thing is, somebody probably did! It's probably in pieces now.

[Jazz P Bass]

and write "mod under protest" .

Whoo Hoo!

That's great.