Got the tubes, need some help (List Inside)

Started by Zben3129, December 22, 2007, 09:29:10 PM

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Zben3129

Hi guys,

Got those tubes I ordered today, and made a list of all of them

Main things I am looking to know are,

Is there any way to use them in guitar related circuits
Are they worth selling (aka worth at least 6 or 7 bucks)
Any gems?


Syl 6ak5
Tung (army) 6ak5 - PERFECT
syl 6at6
cbs 6au6
Admiral 6ac7
syl 6sk7gt - new
Adm 12sn7gta
syl 12sn7gt
rca 6au5gt
syl 6w6gt
rca 6v6
cbs 12cx6
tun 12k5
wh 17ay3
rca crc-6sj7y (army)
syl 6v3a
adm 6ax4gt
syl 6sq7 - rattles like a dead lightbulb when shaken
syl 6as5
philco 1x2a
zenith 12at6
ge 6ar5
motorola 12t10
ge 25av5gt
rca 3bz6
international 8bn11
syl 25hx5
syl 17ck3
syl 17bw3
svetlana 6cj3/6dw4b
raytheon 6an4
raytheon 12b4a
rca 1ts OR 1t5 (cant read clearly enough)
syl 3ca3a
zenith 22bw3
rca 6al3/ey88
rca 6w4gt
syl 6bw8
syl 11ar11
syl 17bb14 - rattles
phillips 4kt6
ge 8b10
rca 2sz6gt
ge 6as11
ge? 6ky8a
ge 6ah4gt
zenith 3hm5/3ha5
triad 3bn6
ge 3bn6
syl 4es8
syl 6ch3 - rattles
truetone 1k3
zenith 19cg3
syl 10em7
syl 31lr8 - giant tube
tung 1a6 - giant global tube
raytheon 1e4g - giant tube
ge 1d7g - giant global tube
radiotron 1c7g - giant global tube
rca 6v6 - one glass but completely black, the other mostly clear


Thanks


Zach

BlueToad

Some things that jump out:
RCA 6v6's, traditional small fender output tube
6SJ7, octal small signal pentode, some early fender and gibson amplifiers used them in preamps (Gibson GA20 comes to mind)
6au6, another small signal pentode, some people have used these in 18 watters and like them pretty well
12sn7, 12V heater version of the 6sn7, which is used a lot in hi-fi amps and also in some older ampegs (some reverberockets, for example), and possibly others
That's what sticks out to me.
Carl
If it isn't broken, take it apart and fix it!

Zben3129

Thanks!
Exactly the kind of reply I was looking for!

Zach

BubbaKahuna

Weber has a Champ 5C1 design that uses the 6SJ7 as the sole preamp tube with a 6V6GT and a 5U4GB rectifier.
Very simple amp - I'm going to build one as soon as I get a couple smaller projects buttoned up.

The giant tubes are cool show pieces, especially if you know which pins are the heaters.
Some people buy those just to light them up in things where they do nothing but look cool.

Hey how cool would a Champ be with a ginormous tube sticking right out of the middle of it?
I could also put one in front of a mirror in the center of a small hi-fi tube amp to give it that Frankenstein look.   ;D

Do you hav a tube tester? That's going to be required before you start plugging these into anything unless you like risking a fire.
Especially if some of them rattle (that's not a good sign).
My Momma always said, "Stultus est sicut stultus facit".
She was funny like that.

Zben3129

Nope, no tube tester.

I wasn't planning on using the rattlers, figured they were dead.

Also forgot to mention there was a sylvania 12ax7, but it came in about 899999999 pieces.


Also, got 41 12au7's if anyone needs some of those, just pm me. I can't see myself using 41...

birt

you don't need a tube tester. if it rattles see if something loose is visible and use your meter to look for shorts between pins while taping the tube. if you find some check if they are normal (datasheets! www.duncanamps.com ). if everything seems fine they probably are fine and have a small chance of killing am amp if you use them. some of those tubes that look fine might be in a much worse condition than some of those that rattle.

i'm interested in your 12AU7's but only if you're not on the other side of the globe :p
http://www.last.fm/user/birt/
visit http://www.effectsdatabase.com for info on (allmost) every effect in the world!

Zben3129


birt

Amperex and Mullard are the same. Philips too. all made in the Netherlands. Adzam was made here in Belgium by M.B.L.E. and is also closely related to Philips.
http://www.last.fm/user/birt/
visit http://www.effectsdatabase.com for info on (allmost) every effect in the world!

caress

Quote from: birt on December 23, 2007, 05:12:56 AM
you don't need a tube tester. if it rattles see if something loose is visible and use your meter to look for shorts between pins while taping the tube. if you find some check if they are normal (datasheets! www.duncanamps.com ). if everything seems fine they probably are fine and have a small chance of killing am amp if you use them. some of those tubes that look fine might be in a much worse condition than some of those that rattle.

i'm interested in your 12AU7's but only if you're not on the other side of the globe :p

you might not damage anything if you pop in an untested tube, but then again, you might.  it's not worth the risk, IMO...  although, a tube tester is important if you want to sell them...  i certainly wouldn't buy untested tubes from someone unless they were in a lot for cheap.   ;)

the 6bn6 tubes are the same ones metasonix uses in their modules.

Zben3129

Thanks for the info -

The 12au7's are tested, I got those from a different seller


Thanks

Zach

birt

Quote from: caress on December 23, 2007, 11:27:57 AM
Quote from: birt on December 23, 2007, 05:12:56 AM
you don't need a tube tester. if it rattles see if something loose is visible and use your meter to look for shorts between pins while taping the tube. if you find some check if they are normal (datasheets! www.duncanamps.com ). if everything seems fine they probably are fine and have a small chance of killing am amp if you use them. some of those tubes that look fine might be in a much worse condition than some of those that rattle.

i'm interested in your 12AU7's but only if you're not on the other side of the globe :p

you might not damage anything if you pop in an untested tube, but then again, you might.  it's not worth the risk, IMO...  although, a tube tester is important if you want to sell them...  i certainly wouldn't buy untested tubes from someone unless they were in a lot for cheap.   ;)

the 6bn6 tubes are the same ones metasonix uses in their modules.

the reason the first test on tubetesters is allways a shorts test is what i just said. a tube tester is a circuit like any ampliefier circuit. shorted tubes can damage the circuit. bad tubes are just bad, they won't damage anything but simply don't work as they should. if you are selling them you might want to test them, but you can do an audio test in an amplifier too.
http://www.last.fm/user/birt/
visit http://www.effectsdatabase.com for info on (allmost) every effect in the world!

caress

ahhh yes i missed that part you wrote about doing a shorts test with a meter...   ;)