Latest Thread Images

Little Dot Tube Amps: Vacuum Tube Rolling Guide
Oct 9, 2020 at 8:02 PM Post #12,211 of 13,448
Took a long time to get everything from ebay, but finally got the setup i"m very happy with. Thanks to everyone for guidance and help!
6SN7GT VT-231 JAN Sylvania and C3G Siemens
Adapters and socket savers as I did not remove the gold rings.
Sounding great!
IMG_7096.jpg
 
Oct 9, 2020 at 8:07 PM Post #12,212 of 13,448
Arro said:
Great thread. I've using it as a reference to get the most out of my I+ and my MKIVSE.

Recently I've been looking at other Russian double triodes that might work as output tubes and I came across the 6N26P (6Н26П) among a few others. It can currently be found on eBay for around $30 a pair and is being sold as a 6H30P-DR alternative. It draws less heater current than a 6N6P but it has a plate voltage of 150, compared to the 6N6P's plate voltage of 120. It's pin out appears to be the same as the 5670. Would the 6N26P be safe to use in the Little Dot amps?
This is the closest I've come to finding a data sheet - http://www.russiantubes.com/prop.php?t=12&p=230
Click to expand...
I use these tubes (6N26P)with my WA22 with 5670 to 6SN7 adapters its a very nice sounding tube can also use 5670,6N3P,396A ,according to my notes 1 PAIR 6385,5670,6N3P, 6N26P ,396A T0 6SN7$35.00 20-02-2017.jpg
 
Oct 9, 2020 at 8:13 PM Post #12,213 of 13,448
I remember liking the 6AU6 tubes alot bought 6AU6 to 6AK5 adapters for them and many tubes .Here are some of them 1 PAIR GE JAN 6AU6WC 24-07-13.jpeg10 TUBES SYLVANIA JAN 6AU6WA 23-09-2013 (1).JPG10 TUBES SYLVANIA JAN 6AU6WA 23-09-2013 (2).JPGGE 6AU6-8425A TEKTRONIX (1964) MATCHED PAIR $27.00CA 24-07-13.jpeg6AU6 TO 6AK5 ADAPTER L.D.MK3 $25.00.jpg
 
Last edited:
Oct 10, 2020 at 11:49 AM Post #12,214 of 13,448
talking about 6BE6... I have couple of Telefunken but no way to find some more (well, at cray price of 33 euro/each are available... I'm not available for that as I paid roughly 4,50 euro/each for those I have) but there are many other brands avaliable... looking for nos and excluding Siemens, too hard, and Mullard, maybe too boomy/soft, wich other brand could be similar to TFK I have?
btw... I've received the CV4014... as soon as I feel like opening the LD and setting in EF91 I will see if/how well they sound... to be beautiful they are beautiful
 
Oct 10, 2020 at 11:49 AM Post #12,215 of 13,448
Last edited:
Oct 10, 2020 at 12:16 PM Post #12,216 of 13,448
Oct 10, 2020 at 12:29 PM Post #12,217 of 13,448
Oct 10, 2020 at 12:41 PM Post #12,218 of 13,448
Oct 10, 2020 at 1:13 PM Post #12,219 of 13,448
I didn't care much for the 6AV6 or 6AT6 way too bright for me.

And don't forget how to count when cutting off the pins with the Dremel... :rolling_eyes:
5289910.jpg
 
Oct 10, 2020 at 1:22 PM Post #12,220 of 13,448
Instead of snipping off 2 pins, I think it is better to use 2 adapters where you disconnect the 2 pins inside.

That way you will have 2 new tubes when the 2 halves in use are depleted many years later. Just switch left and right, and you will have 2 new tubes.

Snipping 2 pins off is just a waste of tubes and blasphemy to me :dt880smile:
 
Oct 10, 2020 at 1:51 PM Post #12,221 of 13,448
cddc said:
Instead of snipping off 2 pins, I think it is better to use 2 adapters where you disconnect the 2 pins inside.

That way you will have 2 new tubes when the 2 halves in use are depleted many years later. Just switch left and right, and you will have 2 new tubes.

Snipping 2 pins off is just a waste of tubes and blasphemy to me :dt880smile:
Click to expand...
The tubes weren't that special, also finding B7G socket savers to modify is just about impossible.
 
Oct 10, 2020 at 1:54 PM Post #12,222 of 13,448
After today I'm off till Wednesday, so I think it will be time to pull the tube cage from the MK IV drivers and install the pair of C3g.
 
Oct 10, 2020 at 2:10 PM Post #12,223 of 13,448
Then you will have to give them time to show their best. I believe that a lot of people jump to conclusions when evaluating the qualities of newly installed tubes. They don't give them enough time to show their colours. I have used my Melz 6H12C/6N12S about 200 hours by now and imagine that they are still getting incrementally better. I wasn't very impressed by the C3g from the beginning but they changed and kept on changing. At least they changed my view of them. No mean feat.
 
Oct 10, 2020 at 2:33 PM Post #12,224 of 13,448
cddc said:
Instead of snipping off 2 pins, I think it is better to use 2 adapters where you disconnect the 2 pins inside.

That way you will have 2 new tubes when the 2 halves in use are depleted many years later. Just switch left and right, and you will have 2 new tubes.

Snipping 2 pins off is just a waste of tubes and blasphemy to me :dt880smile:
Click to expand...

It is worth noting that the 6AT6 (and 6AQ6 and 6AV6) are double diode-triodes. That is, there is one triode and two diodes inside each bottle. They are not double triodes so the notion that after some years, you can simply switch the left and right sections and have two new tubes isn't valid. In order to use them in the LD, you have to somehow disconnect those diodes. And while cutting off pins 5 and 6 could be called "butchering", it's cheap, expeditious and it works. lol :)
 
Last edited:
Oct 10, 2020 at 2:45 PM Post #12,225 of 13,448
triod750 said:
Then you will have to give them time to show their best. I believe that a lot of people jump to conclusions when evaluating the qualities of newly installed tubes. They don't give them enough time to show their colours. I have used my Melz 6H12C/6N12S about 200 hours by now and imagine that they are still getting incrementally better. I wasn't very impressed by the C3g from the beginning but they changed and kept on changing. At least they changed my view of them. No mean feat.
Click to expand...
I intend to give them just that, really looking forward to it.
 
You must log in or register to reply here.

Users who are viewing this thread

Total: 10 (members: 0, guests: 10)
Back
Top