Good luck finding quad 1578's - they're more rare than hen's teeth right now.
I just picked up some Tung Sol Black Glass on eBay for around $150/pr, you can probably find those, KR's, and the RCA Grey's for around the same price.
Some years back there was an Australian fellow interested in high end tube stuff on various Head-Fi threads. He had a company that made stickers, but I haven't seen any posts from him for a while.
But it has to look this:
So was just wondering if this is one of those famed Sylvania 3 hole "Badboy" 6SN7 tubes.
There is no EIA number on it, and labeled as "Viking - Standard Brand". I was just going through my 6SN7 collection I haven't reached for in awhile and came across this tube.
Labeled 6SN7 GTA on top. The date code is unfortunately unreadable.
So was just wondering if this is one of those famed Sylvania 3 hole "Badboy" 6SN7 tubes.
There is no EIA number on it, and labeled as "Viking - Standard Brand". I was just going through my 6SN7 collection I haven't reached for in awhile and came across this tube.
Labeled 6SN7 GTA on top. The date code is unfortunately unreadable.
The so called bad boy is a different tube. The first big thing that is different is that the bad boy has the getter on the bottom. They are worth hearing if you get a good price. That is harder and harder to do.
Having trouble finding a specific 5692 comparison - there's obviously still debate on who actually manufactured these tubes, and which ones have the best SQ.
Does anyone here have any experience comparing Westinghouse 5692 to the others (GE, RCA, CBS, SYL etc.)? Would be interested in hearing opinions on this.
Good luck finding quad 1578's - they're more rare than hen's teeth right now.
I just picked up some Tung Sol Black Glass on eBay for around $150/pr, you can probably find those, KR's, and the RCA Grey's for around the same price.
wow! this is beautiful . What tubes are these? Are all big-bottle tubes doing this glowing effect in the dark?? would think about spending the money to get some LinLai Elite 6sn7 if it's the case (because I heard they also sound really good!)
wow! this is beautiful . What tubes are these? Are all big-bottle tubes doing this glowing effect in the dark?? would think about spending the money to get some LinLai Elite 6sn7 if it's the case (because I heard they also sound really good!)
Those are Western Electric 300B tubes in my Woo Audio WA5-LE amplifier. Not all do this, mostly the WE's and some Takatsuki 300B's will do it (as well as a few others). It's an effect caused by some electrons hitting the glass. You can read more about it HERE
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. What tubes are these? Are all big-bottle tubes doing this glowing effect in the dark?? would think about spending the money to get some LinLai Elite 6sn7 if it's the case (because I heard they also sound really good!)
