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Sourcing JJ 300B tubes

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Hi all:

Looking for any recommendations of where to go (good vendor) for JJ 300B tubes.

Also considering 45's. Given the availability of these tubes, I'm a little concerned about getting the bottom of the barrel, and not realizing it. Where can I go to get a reliable set of tubes?

Thanks.
 
There are quite a few vendors who sell the JJ tubes but I'm not sure if all of them carry the 300b. That guy at Eurotubes does and while I've not bought from him personally I've heard good things from those folks who have bought from him.

I just looked New Sensor and Antique Electronic Supply both list the JJ 300B so finding a set shouldn't be any problem at all.
 
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