The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)
Nov 28, 2022 at 8:51 PM Post #2,611 of 4,180
Finally found a matching Tung Sol 76. Construction and sound very close to the 37 but no background noise. The TS 6j5g/vt-94a has so far eluded me but if the sound is similar I can see why they are so highly spoken of.
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Nov 28, 2022 at 9:06 PM Post #2,612 of 4,180
Things are starting to get a bit crowded in the ol' Woo Audio WA5-LE...

My adapters finally arrived, and seem to be working just fine. Tubes are Zenith 6J5G. Looking forward to this new experiment!

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Zenith 6j5g are one of my guilty pleasures. I got my pair cheap and they are my default inputs in my Bottlehead crack in my shop. I believe they were manufactured by Sylvania and rebranded Zenith?
 
Nov 28, 2022 at 9:09 PM Post #2,613 of 4,180
Zenith 6j5g are one of my guilty pleasures. I got my pair cheap and they are my default inputs in my Bottlehead crack in my shop. I believe they were manufactured by Sylvania and rebranded Zenith?
Not sure -- my first jump into the 6J5's, I've still got some research to do.
 
Nov 28, 2022 at 10:39 PM Post #2,616 of 4,180
Zenith 6j5g are one of my guilty pleasures. I got my pair cheap and they are my default inputs in my Bottlehead crack in my shop. I believe they were manufactured by Sylvania and rebranded Zenith?
Quite a few are, I would say the majority in the case of the coke bottle tubes, but not all. Some of them are Raytheons, and the late 30's Sylvania and Raytheon 6J5 tubes are pretty much on opposite ends of the spectrum from each other in terms of sound so it might be good to watch out for mis-matched pairs here. I've seen quite a few that are too, it's easy to tell by looking at the top mica support. The Raytheon are cross shaped and the Sylvania are rectangular with rounded ends and are held against the glass with a pair of thin steel tension wires.
 
Nov 29, 2022 at 7:53 AM Post #2,617 of 4,180
Having some 6J5 Fun... Yes i realize the kenrads are not absolutely identical but i am using them as a pair none the less.

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The left tube there, Crosley Ken Rad, is the first where I have seen the typical notches in the top mica. On all I have handled they are in the bottom mica. Interesting. Early Monday morning at the factory?
 
Nov 29, 2022 at 9:36 AM Post #2,618 of 4,180
All of my Ken Rad 6/12J5GT's have the notches in the bottom mica also.

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Nov 29, 2022 at 7:12 PM Post #2,620 of 4,180
Hi gents, I have been using my quad GEC L63 for sometime, I quite enjoy them but the itch to get more tube pairs is real and well, since I already bought the converter....

I am wondering if its ok to mix a 6J5WGT with a regular 6J5G as a mix of a 6SN7 substitution? I think there were different characteristics between the 2 classes, would there be issues?
 
Nov 29, 2022 at 9:43 PM Post #2,623 of 4,180
Perfectly safe to mix a 6J5WGT and a 6J5G together, they are electrically identical. It's not OK to run one 6J5 and one 6SN7 in the adapter though, just in case that's what you're asking here. The pin connections are different.
That was what I was asking, thank you.

Gonna be interesting to try the 6J5WGTs out!
 
Nov 30, 2022 at 7:29 AM Post #2,624 of 4,180
Its not the WGT stuff I am getting from the surplus store, but I chanced upon a quad from my local dealer at a low price, are these white labels? Will be getting a couple of other 6j5gs to mix and match for fun
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