Carys

Thanks for the moola Larrt. You just bought me an amp today I won on e-bay.
 
LOL Lee

They were matched 1 quad then the other quad. They were exactly the same on both quads when I bought them. These aren't the original tubes.

larry
 
Larry On my amps I can bias each tube so matching is not that critical. I bias each tube between 55 and 60 ma. per tube. Over the years I have tried the Old School Genelex, Mullard Tungsol G. E. Sylvania and Svetlana and Re-issue Genelex, Tungsol and Electro-Harmonix. The tube that I liked the most was the Old School Tungsol 6550 for my 60 watt amps.
 
I do like my Winged Cs. They sound just like they were described. I got mine from the Tube Depot. I do have the Cary tubes if I want to use them.

I used Mullard EL-34s in my Chinese amp. Tube Depot does a good job describing the tubes I have bought so far. No surprises. I do read as much as I can before buying them. 8 6550s isn't cheap. On the preamp Lee is building I went with 12AU7s Clear Top RCAs. I am getting more tubes as I go. LOL not cheap at all.

Like I said I am learning. I have a friend named John who helps me with tubes. He is pretty cool and very knowledgeable.

Larry
 
Well I listened to Gary Moore today and yesterday. The tweets seem to have mellowed with time. That is a good thing. LOL I'm thinking the tubes are burning in. Cool

larry
 
Larry the wing c tubes are probably the best your going to get they still follow the stringet testing of the tubes when they leave the factory. When Eric Barbour was the engineer for them he put together a system for rating them and the factory still follows them. Eric is a very knowledgable gentlemen in this area, I still email him for tips and tricks with tubes.
I have use a excellent setup for balancing tubes in the amps with a fixed bias...its fullproof and you never have to mess with the bias. Its a 25 ohm 3watt pot off the cathodes and the wiper is grounded. each side of the pot has a test point connected to it and you set your meter for mvdv. with the probes in the test points you turn the pot till the meter reads 0.000 and the tubes are perfectly equal that simple. If you going to do carys its a mod, but I don't think you want to mess with them. its a great setup for mismatched tubes...great for when modding or add during a rebuild.
I'll draw a schematic so you can see how it works.
 
Here's amp for anyone to build. This is a working amp fully tested for over ten years, nice thing is you can use KT66, 5881's, or 6L6's...tried EL34's but alot of gain...[attachment=0]6L6amp.jpg
 

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soundude said:
Larry the wing c tubes are probably the best your going to get they still follow the stringet testing of the tubes when they leave the factory. When Eric Barbour was the engineer for them he put together a system for rating them and the factory still follows them. Eric is a very knowledgable gentlemen in this area, I still email him for tips and tricks with tubes.
I have use a excellent setup for balancing tubes in the amps with a fixed bias...its fullproof and you never have to mess with the bias. Its a 25 ohm 3watt pot off the cathodes and the wiper is grounded. each side of the pot has a test point connected to it and you set your meter for mvdv. with the probes in the test points you turn the pot till the meter reads 0.000 and the tubes are perfectly equal that simple. If you going to do carys its a mod, but I don't think you want to mess with them. its a great setup for mismatched tubes...great for when modding or add during a rebuild. I'll draw a schematic so you can see how it works.
Click to expand...

Cary did my mod to bias my tubes. I would not send my amps back to Cary. Have had some problems and they talk to you like you are stupid. All the tubes are matched in them right now. On one amp I could not turn my bias to 0. To bias them. Now I have a LED out. Not happy at all.

Larry
 
speakerman1 said:
Cary did my mod to bias my tubes. I would not send my amps back to Cary. Have had some problems and they talk to you like you are stupid. All the tubes are matched in them right now. On one amp I could not turn my bias to 0. To bias them. Now I have a LED out. Not happy at all.

Larry
Click to expand...

Send em here....don't forget the stands....:D
 
sounds like cary is on the, "make work program!!!"
Thats the reason why we need to learn about our equiptment inside and out...
 
do you want to attemp it? if you have a schematic post it and I'll tell you where it is.
There should be something outside the amp, keeps tech from the danger of shock from going inside.
 
I hear ya, but keep a check on them if the tubes are new, they tend to drift about 20 hours in.
Always look at the plates in the dark near the seams if there is a dull redness you need to increase the bias more negative...
 
soundude said:
I hear ya, but keep a check on them if the tubes are new, they tend to drift about 20 hours in.
Always look at the plates in the dark near the seams if there is a dull redness you need to increase the bias more negative...
Click to expand...
The 1st month or so I check a lot. Till they stabilize. After that I bias about once a month.

Larry
 
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