Here you go Doc might fund a retirement trip for the grandkids:)
pitdogg2
Posts: 25,441
http://www.ebay.com/itm/Western-Electric-Pair-300B-Vacuum-Tubes-Test-Strong-On-Amplitrex/332302052066?_trksid=p2481888.c100651.m4497&_trkparms=aid=777001&algo=DISCO.FEED&ao=1&asc=20160801204525&meid=ea07561c812c4a25b66d0e7097aaf5f8&pid=100651&rk=1&rkt=1&&_trkparms=pageci%3A7d1cd141-6e32-11e7-ab17-74dbd1804ca8%7Cparentrq%3A66003e9d15d0ab130d842bddfffdc4bf%7Ciid%3A1
http://www.ebay.com/itm/Western-Electric-300B-Vacuum-Tubes-Pair-New-in-Sealed-Boxes/352112345361?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=41376&meid=7949f7ca80fd41f5bbac9506db470dda&pid=100005&rk=5&rkt=6&sd=332302052066
http://www.ebay.com/itm/Western-Electric-300B-Vacuum-Tubes-Pair-New-in-Sealed-Boxes/352112345361?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=41376&meid=7949f7ca80fd41f5bbac9506db470dda&pid=100005&rk=5&rkt=6&sd=332302052066
Comments
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hmm, interesting economics, at face value, eh?
I think I'd rather invest that kind of moolah in a Marantz 8B, truth be told
Heck, there's not even a 300B amp here (at least, I don't think there is)...
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I just thought that they were WAY too pricey.
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heck, maybe they're a better investment that a Dodge Demon; only time will tell!
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I've had numerous opportunities to listen to WE 300Bs in (DIY, admittedly, but serious DIY) SE amplifiers. The do sound good -- but SE 300B amps, to me, lack the soul of a SE 2A3, 45, or 50 amplifier.
Now, NOS 50s will also set one back a pretty penny
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So how do you know you have the 4pin tubes in correctly? Do they have a key like 6sn7 type tubes?
A friend back in the day I was maybe 12 used to have one when he was a tadpole said those things got hotter than Hades. I wouldn't know TBH -
No key, but there're two big pins and two little pins
It is possible to mis-insert them, though, in some sockets -- the consequences are typically not very pretty.
Yes, power output tubes (and HV rectifiers, for that matter) typically run very hot -- most are rated, if memory serves, for bulb (envelope) temperatures up to 200 degrees C (392 degrees F). That is hot.
DSC_0128 by Mark Hardy, on Flickr
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Oh -- and metal power output tubes are the most fun of all.
At least the glass ones are glowin' reddish-orange inside; they at least look hot.
A metal 6L6, for example, looks the same, hot or cold -- but in use, they can be danged hot. Don't ask me how I learned about this
Not my photo, not my tubes -- but still a darned pretty pair of metal 6L6s
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still have the warped flesh to prove it huh:)
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Actually, my run in was with a metal 12A6 output tube in a Heathkit A7 amplifier -- but, yeah, it was an owwie situation.
http://www.tubebooks.org/tubedata/HB-3/Receiving-Type_Industrial_Tubes/12A6.PDF
