TK16
Headphoneus Supremus
My say 7316/ECC186 on the tubes and on the original boxes
Schiit Lyr Tube Rollers
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I’ll look for some data as well, I know that Brent Jessee audiotubes.com lists them in the 12au7 page http://www.audiotubes.com/12au7.htm
AuditoryCanvas
500+ Head-Fier
Probably because their original intended use mean they were pin and voltage compatible. Duncan's lists them as different rating.
http://tdsl.duncanamps.com/show.php?des=7316
If anyone has a pair and a multimeter, can you check the heater current draw?
AuditoryCanvas
500+ Head-Fier
Yeah, that doesn't mean anything. He lists a lot of tube variants on the 12at7, 12ax7, and 12au7 pages - some of them are 450ma, and some are 600ma. Just having the same pinout doesn't mean they're compatible with amps that have a heater current limit like the mj2 and Lyr 2.
I’ll look for some data as well, I know that Brent Jessee audiotubes.com lists them in the 12au7 page http://www.audiotubes.com/12au7.htm
I made a chart a while back for the 12at7 variants. I'll dig it up now.
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AuditoryCanvas
500+ Head-Fier
Here's that chart I had started making. Didn't get as far as the 12au7 variants.
12at7 - 300ma
12au7 - 300ma
12ax7/ecc83 - 300ma
6201 - 300ma
7062/e180cc - 400ma
7025 - 300ma
7728 - 300ma
7729 - 300ma
6681 - 300ma
5751 - 350ma
6211- 300ma
6679 - 300ma
NO:
12az7 - 450ma
12ad7 - 450ma
6965 - 450ma
6414 - 450ma
6829 - 450ma
E80CC - 600ma
12at7 - 300ma
12au7 - 300ma
12ax7/ecc83 - 300ma
6201 - 300ma
7062/e180cc - 400ma
7025 - 300ma
7728 - 300ma
7729 - 300ma
6681 - 300ma
5751 - 350ma
6211- 300ma
6679 - 300ma
NO:
12az7 - 450ma
12ad7 - 450ma
6965 - 450ma
6414 - 450ma
6829 - 450ma
E80CC - 600ma
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mattrudy80
100+ Head-Fier
I can check when I get them. Isn't it kind of difficult to hook up in series to pin 9?
The above post was not ment too upset you. I was simply saying that on his website he list the 7316 in the 12au7 family of tubes and agreeing with you in wanting to find more information on the 7316 tubes to make sure I don’t damage my MJ2. As I am still very new to tubes, started with tubes in February of this year. I am using the information I have been getting from fellow members to find and purchase some great tubes for my MJ2, as I have been “bit” by the “Tube Bug” A lot of the information you have posted back starting towards the end of July 2018 including your list has really helped me.
Thank you for the list, when I was going back through reading the thread, I came across your list and made a copy of it. The list you made has very helpful and valuable information. As mentioned above I was going back through the thread reading up on the 12at7 family of tubes. I wanted to find some good recommendations for my MJ2. Using the information you and several other members have posted to make a list of 12at7 family tubes I want to try!
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mattrudy80
100+ Head-Fier
When I get them I'll bend the pin on an extra socket saver and check. I can't think of a better way to measure.
bcowen
Headphoneus Supremus
Straight from the horse's mouth (scroll to bottom). Interesting that only 6.3v is listed (and not 12.6v as well).
http://tubebooks.org/tubedata/Amperex_Non-receiving_tubes_1963.pdf
http://tubebooks.org/tubedata/Amperex_Non-receiving_tubes_1963.pdf
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mattrudy80
100+ Head-Fier
Awesome! You saved the day.Straight from the horse's mouth (scroll to bottom). Interesting that only 6.3v is listed (and not 12.6 as well).
http://tubebooks.org/tubedata/Amperex_Non-receiving_tubes_1963.pdf
mattrudy80
100+ Head-Fier
mattrudy80
100+ Head-Fier
The plate current, plate voltage, and amplification factor are different:
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Straight from the horse's mouth (scroll to bottom). Interesting that only 6.3v is listed (and not 12.6v as well).
http://tubebooks.org/tubedata/Amperex_Non-receiving_tubes_1963.pdf
Thank you for finding and posting the info!
bcowen
Headphoneus Supremus
The plate current, plate voltage, and amplification factor are different:
Depends on which data sheet you look at. This is GE's (one of TK's favorites) for a 12AU7:
http://www.mif.pg.gda.pl/homepages/frank/sheets/093/1/12AU7A.pdf
The 7316 is commonly considered a direct 12AU7 sub. The heater current was in question (and a good question), but with that out of the way it looks like the tube is compatible enough to use as a sub without worry.
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