Darkvoice 336i & 336SE Tuberolling PartII
Mar 15, 2020 at 5:42 PM Post #2,851 of 14,577
Does anyone have photos of the transformer inside the SE? I was going to take of the cap off today but I don't have my soldering stations with me.
I tried opening this thing up last month and right away stripped the screws..so yeah, game over, keeping it as is. :)
 
Mar 15, 2020 at 5:44 PM Post #2,852 of 14,577
I tried opening this thing up last month and right away stripped the screws..so yeah, game over, keeping it as is. :)

Yeah, the bottom screws were really in there. I just keep them *snug* since I'm in and out of it.

 

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Mar 15, 2020 at 6:30 PM Post #2,853 of 14,577
Mar 15, 2020 at 6:52 PM Post #2,854 of 14,577
Here are the readings I pulled on my AMP.
Green is capacitor specs, Yellow is my readings. Light Blue was the heater grid. Only got one of the 106J (74V?) I need longer probes to read others.
Readings-1.JPG
 

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Mar 15, 2020 at 7:36 PM Post #2,855 of 14,577
No, it will be a finished version of this which is just a prototype (I had to send it back several weeks ago):

Toms Amp.jpg
Shades of the Bottlehead. Tempted to grab one. Gonna be on call these next few weeks, they closed everything off here in the Coachella Valley! For some flu like virus, I don't get it.
 
Mar 24, 2020 at 5:20 AM Post #2,858 of 14,577
Guys, I was using a combination with RCA JAN 6As7G and Sylvania 6SN7WGT. Only I found the sylvania valve kind of shiny and with a recorded sound. When I put the Chinese 6SN7 valve, the sound became much more natural and warmer, the way I like it. The Chinese 6SN7 valve with RCA tame the treble of my T1 and gave it a little more bass, and even improved the midfield. Which 6SN7 valve do you indicate can be upgraded to the Chinese valve, keeping the sound as I described?
 
Mar 24, 2020 at 10:32 AM Post #2,859 of 14,577
Ken rad vt231, sylvania 6sn7gt 2 hole bottom getter 1952, national union black or smoked glass.
 
Mar 24, 2020 at 10:45 AM Post #2,860 of 14,577
Ken rad vt231, sylvania 6sn7gt 2 hole bottom getter 1952, national union black or smoked glass.
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Do you have a picture of the sylvania tube for me to see?
 
Mar 24, 2020 at 11:03 AM Post #2,861 of 14,577
Another question. I don't intend to use low impedance headphones on my Darkvoice. So would Tung-sol really be an upgrade over my RCA JAN 6AS7G for my 600ohms T1? Or would the only advantage of obtaining the Tung-Sol 5998 be for better control of low impedance headphones?
 
Mar 24, 2020 at 11:13 AM Post #2,862 of 14,577
Another question. I don't intend to use low impedance headphones on my Darkvoice. So would Tung-sol really be an upgrade over my RCA JAN 6AS7G for my 600ohms T1? Or would the only advantage of obtaining the Tung-Sol 5998 be for better control of low impedance headphones?
5998 will be a nice upgrade for your T1 ( any headphones really) I'm currently searching for a 2nd headphone to play with on the Darkvoice, compared to the Hifiman 400i, the Sennheiser HD6XX are really dark. Looking for pics of the Sylvania for you... Soon as I get some coffee in me :) good morning!
 
Mar 24, 2020 at 11:31 AM Post #2,863 of 14,577

Here you go. What to look for: three holes in the plate, bottom getter, date code of late 1951 to early 1953.
C9F0F4A3-357C-42EC-BDC6-84A49A327F07.jpeg
24455F48-BD83-4034-A8E9-DF6A7B8F979D.jpeg
 
Mar 24, 2020 at 11:47 AM Post #2,864 of 14,577
Nice DenverW! I may have to restock on these, (I sold off my JAN-CHS 52' pair last month) I for sure thought you had the short bottles in mind, those really pack a punch for the monies on them, they were everywhere when I was on the hunt for them so grabbed a few, the one tube I horded on, :D I just found the three to photograph and one more somewhere around here.. all early 50's I believe modeled from the "Chrome Dome".
2020-03-24 08.33.09-1.jpg
 
Mar 24, 2020 at 2:02 PM Post #2,865 of 14,577
5998 will be a nice upgrade for your T1 ( any headphones really) I'm currently searching for a 2nd headphone to play with on the Darkvoice, compared to the Hifiman 400i, the Sennheiser HD6XX are really dark. Looking for pics of the Sylvania for you... Soon as I get some coffee in me :) good morning!

Here you go. What to look for: three holes in the plate, bottom getter, date code of late 1951 to early 1953.
C9F0F4A3-357C-42EC-BDC6-84A49A327F07.jpeg24455F48-BD83-4034-A8E9-DF6A7B8F979D.jpeg


Nice DenverW! I may have to restock on these, (I sold off my JAN-CHS 52' pair last month) I for sure thought you had the short bottles in mind, those really pack a punch for the monies on them, they were everywhere when I was on the hunt for them so grabbed a few, the one tube I horded on, :D I just found the three to photograph and one more somewhere around here.. all early 50's I believe modeled from the "Chrome Dome".
2020-03-24 08.33.09-1.jpg

Guys thank you so much for your help. I'll see if I can find some with a good price to buy. Good quarantine to all!
 

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