Nice. Looks like a Russian made tube. Maybe a 70ās Foton.
Hey All, I fairly recently replaced my power tube with a '50s RCA Black Plate 6AS7G. It worked great for about a week and this morning I flip it on to hear that the left side has no output. If I were to guess itās got about 40 hours of use on it. Is this thing toast, or could further burn-in bring back the left channel? luckily Iāve got the original tube that the amp came with so I can narrow the problem down to being due to this new tube
If a channel is gone thereās no way back
OK - figured. Now to find a new power tubeā¦Thanks for the quick reply
would you be interested in sending some of the ones you dont care for my way so i can try them out id make a deal with ya
Iād try taking a soldering iron to the pins to reflow the solder in there. That or resoldering the pins entirely.
I have some nice tubes that Iād let go if your interested in them. PM me.
Some British military Mullards. Too expensive for my blood but maybe one of you guys will want.
Thatās a great tube, have one copy of that one. price is spot on for that one there.
That shirt is fantastic. would you mind shaing the design or where to purchase?
Hey guys I still have tubes up for sale if anyone is interested, send me a PM . I might have what Your looking for. : )
Yes, there is no copy, but there is a very good alternative.
The 6080 Sylvania is a good tube and relatively cheap.
It is a bit more organic than the Mullard, and the price is not as low as the Mullard.
Otherwise I had the impression that everything is very similar.
Or rather, that was the only thing I noticed.
Roughly speaking, Iād say itās the closest tube to the Mullard.
The Gold Brand Sylvania 6080 is the one to look forā¦that one outshines the regular Sylvania 6080. And about half the price of the Millard. If you look around, you might find one. I had three of them at one point and gave one away to a member. Another 6080 worth looking for is the Tung Sol 6080.
Add me to the list of people who can vouch for the Tung-Sol 7236; across the board it is an improvement vs stock, and the noise floor has dropped significantly. Thanks again @JKDjEdi
Hello!
Iāve had a Darkvoice for the last few months and I want to change my tubes. Iāve heard great things about the tung-sol variants and I found this 6SN7:
https://www.amazon.com/gp/product/B07MKLN3RV/ref=ewc_pr_img_1?smid=AET5JO4MVOEWM&psc=1
The thing is Iām not able to find the power tube (tung-sol 7236) on Amazon. This is a deal-breaker for me because I live in South America so yeah. My question is, ĀæIs it worth it to only change the 6sn7 tube? If not, ĀæAny common tube you would recommend to go along with the tung-sol 6sn7?
Cheers!
That one is just ok compared to whatās available in NOS tubes. New Old Stock of the 40ās 50ās and 60ās. Now if you can find a black based Tung Sol ā¦6SN7GTB or a grey glassed RCA 6SN7GT, or even a Westinghouse (Reliatron) 6SN7GTB (D shaped getter) youād have a better experience than with the Russian made (red based) Tung Sol. And yes the Output Tube (the large tube in the back) does make a difference. The one (not expensive) output tube thatās good for beginners is the Winged C Svetlana 6H13C . (6AS7 equivalent) yes Russian made, but theyāre NOS 1970 and belowā¦ Not expensive at all. Want something niceā¦ Mullard 6080, Chatham 6as7g, Tung Sol 5998, Bendix 6080 (Graphite plated) and middle road would be any 1950ās Army Navy issued RCA 6as7gā¦ Good Luck!!
Interestingly enough I actually preferred the stock 6AS7G over either the Winged C or 1950s RCA JAN.
The stock tube? 
I gave them a listen after my little collection grew and trashed them after a sit down. My favorites are the Western Electric 421a, Bendix (slotted graphite plates) 6080, Chatham 5998, Chatham 6AS7g, and GEC 6AS7G. When I want something different Iāll try a Tung Sol 6520, Sylvania GB 6080, Chatham 6080, and maybe the Cunningham (RCA) 6AS7G. The 6H13 Winged C rarely gets used. Might have a few in there that Ived missed but way too many. I only listen to them on the weekends in the mornings, and thatās if Iām homeā¦
So my tubes rarely get used. I have to do an inventory soon of my driver tubes. Ive honestly forgotten what I got. I know I have some keepers in there. Or should have someā¦
Yup. I forget which one it was but one of them I found to sound somewhat bright by comparison (not the sound i am going for), and the other gave the midrange somewhat of a hollow-esque quality which I found unpleasant. Like I said before, though, the 7236 by comparison appears to be quite noticeably better. Itās too bad that there arenāt any good ways of properly ab-ing tubes without owning a second amp.