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Please educate me on tubes

Since I know nothing about tubes, I have a few questions:

Vintage, re-issuem NOS, modern production (or if there are other types)? What do these types mean?

Is it safe to buy used? If so, what do you look for?

Should I buy as sets (pairs, quads, matched)?

Where do you get the most, least or doesn’t make a difference? Input, rectifier, output, etc.?

Thanks!
vman71

Showing 1 response by jburidan

jburidan
803 posts
 
Vman71:
There are some trustworthy private tube dealers on Audiogon, but eBay is more risky. Look at the seller's feedback. The crooks get weeded out of Audiogon, and regularly change user ID's to regain anonymity. Also, I've found that good retailers like Upscale Audio, Jim McShane, SND, Vintage Tube Services, etc., have good tubes often at lower prices than Audiogon or eBay. Good luck. If you make a few mistakes, it's just part of the learning process.
Jay
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