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Little Dot Tube Amps: Vacuum Tube Rolling Guide - Page 441

post #6601 of 7532
Quote:
Originally Posted by MIKELAP View Post

You called !
Nope just making sure you were still around... biggrin.gif
post #6602 of 7532

Mikelap! It's good to know that you are still around! :)

 

I was able to spend some time with two sub-miniatures earlier today, the 6021 and the 7923. Both were manufactured by Sylvania, but some 15 years apart, the 6021 in 1961 and the 7963 in 1976, and as expected they share the Sylvania "house" sound, great bass, extended highs and silky smooth mid-range. They are so similar that, at least for me, comparison was very difficult. After a time, I did notice a difference, but I had a tough time trying to figure out just what it was. There was something about the 6021 that just didn't seem right to me. Finally, with the help of Diana Krall, Live in Paris, I realized that it was the tonality of her voice, and the mid-range in general. The 6021 puts a bit of a bloom or lushness onto her vocals, and to my ears, mid-range detail is slightly obscured. Therefore, I prefer the 7963 to the 6021.

 

This is not to say that the Sylvania 6021 is a bad tube. But considering that both are quite cheap, I would recommend the 7963 over the 6021, and especially to you, Mikelap! I really think you should roll a pair of these little guys into your Woo!:)

post #6603 of 7532

Hi Gibosi,

 

Did you have a chance to compare the 7963 to the Raytheon 6832?  It is till available for a song....

post #6604 of 7532
Quote:
Originally Posted by mordy View Post

 

Did you have a chance to compare the 7963 to the Raytheon 6832?  It is till available for a song....

 

I have a Raytheon 6832 (rebadged as a Sylvania) and comparing it to the 7963 is on my to do list.

post #6605 of 7532
Quote:
Originally Posted by i luvmusic 2 View Post
 

I just purchased the CRACK with SB sorry for my wallet tho..........:(

Wish me luck building this kit i might screw it up like what i did with those regulators.

The Crack is a fun build! The only reason I didn't keep it was because everything I had at the time, minus the HD800 and DT990 were 32-40 ohm cans...

post #6606 of 7532
Tension is hot, there is Schiit in the works.

Pictures later...
post #6607 of 7532
Quote:
Originally Posted by TrollDragon View Post

Tension is hot, there is Schiit in the works.

Pictures later...

What are you up to Sir?

post #6608 of 7532

Oops! never mind i can wait.........

post #6609 of 7532
Quote:
Originally Posted by TrollDragon View Post

Tension is hot, there is Schiit in the works.

Pictures later...

post #6610 of 7532

Well today I received a very generous care package from ILM2, when I opened the box not only did I find a 6832 tube inside but an octal socket, terminal strips and some heat shrink tubing.

What a well thought out ready to assemble package, props to you for including all the extra stuff!

 

The cute little 6832, is this thing ever tiny. :smile:


So how I assembled this was to take an empty octal tube base, the socket ILM2 provided fits just perfectly inside and rests on the shoulder of the tube base like they were made to go together.

 

1. Apply some heat shrink pieces to the legs of the tube leaving about 1" free at the bottom.

2. Bend the tangs over on the bottom of the octal socket since they are just on the edge of touching the tube base connectors 

3. Feed all the wires through the center hole of the socket, if you can arrange the wire layout first it helps with assembly of the base section.

4. Double check your wire layout and slide the base up on the wires making sure to feed each wire into its appropriate hole.

5 You will end up with an inch of tube wire sticking out of each hollow pin, pull gently to even up any that look short.

6. Solder each pin and your done.

7. Plug it in and enjoy!

 

The 6832 all aglow in its base.

 

Since these picture were taken I have replace the 6GU7 power tubes with the original 6H30Pi-EB's as the outpul level was too low with the other tubes.

 

Tested with Rainbow's "Temple of the King" amazing song, RIP Ronnie James Dio.

 

So far this is a very nice sounding little tube right out of the box, much more music will be put through it this weekend.

 

Much Thanks to ILM2 for sharing a great little tube!

:beerchug:

post #6611 of 7532
Quote:
Originally Posted by TrollDragon View Post
 

So how I assembled this was to take an empty octal tube base, the socket ILM2 provided fits just perfectly inside and rests on the shoulder of the tube base like they were made to go together.

 

1. Apply some heat shrink pieces to the legs of the tube leaving about 1" free at the bottom.

2. Bend the tangs over on the bottom of the octal socket since they are just on the edge of touching the tube base connectors 

3. Feed all the wires through the center hole of the socket, if you can arrange the wire layout first it helps with assembly of the base section.

4. Double check your wire layout and slide the base up on the wires making sure to feed each wire into its appropriate hole.

5 You will end up with an inch of tube wire sticking out of each hollow pin, pull gently to even up any that look short.

6. Solder each pin and your done.

7. Plug it in and enjoy!

 

 

 

What a great idea! Very clean, neat and professional looking, especially compared to my latest and greatest! lol :)

 

 

I have some a couple sockets and a few extra bases and will try this technique when my 6N16B's finally arrive. Thanks for sharing! :)

post #6612 of 7532
Thanks gibosi!

You are most welcome, this is a semi permanent type build since you would have to desolder the pins to change the tube later. Check the height of the base with the socket in it for heat shrink length, this pair worked at 1". I just placed the tube beside the assembled pieces, bottom of the tube flush with the top and measured to just before the edge of the base bottom. The socket does not have to be glued in place as the soldered tube holds it in snug. Also putting the wires into the pins can be a little fiddly but is very doable if you hold your tongue the right way and mutter a few choice words during the process. smily_headphones1.gif

Enjoy a nice clean build with your next sub miniatures.
beerchug.gif
post #6613 of 7532
Quote:
Originally Posted by TrollDragon View Post
 

Well today I received a very generous care package from ILM2, when I opened the box not only did I find a 6832 tube inside but an octal socket, terminal strips and some heat shrink tubing.

What a well thought out ready to assemble package, props to you for including all the extra stuff!

 

The cute little 6832, is this thing ever tiny. :smile:


So how I assembled this was to take an empty octal tube base, the socket ILM2 provided fits just perfectly inside and rests on the shoulder of the tube base like they were made to go together.

 

1. Apply some heat shrink pieces to the legs of the tube leaving about 1" free at the bottom.

2. Bend the tangs over on the bottom of the octal socket since they are just on the edge of touching the tube base connectors 

3. Feed all the wires through the center hole of the socket, if you can arrange the wire layout first it helps with assembly of the base section.

4. Double check your wire layout and slide the base up on the wires making sure to feed each wire into its appropriate hole.

5 You will end up with an inch of tube wire sticking out of each hollow pin, pull gently to even up any that look short.

6. Solder each pin and your done.

7. Plug it in and enjoy!

 

The 6832 all aglow in its base.

 

Since these picture were taken I have replace the 6GU7 power tubes with the original 6H30Pi-EB's as the outpul level was too low with the other tubes.

 

Tested with Rainbow's "Temple of the King" amazing song, RIP Ronnie James Dio.

 

So far this is a very nice sounding little tube right out of the box, much more music will be put through it this weekend.

 

Much Thanks to ILM2 for sharing a great little tube!

:beerchug:

You're welcome! That thing is a beauty nice and clean......:beerchug:  

post #6614 of 7532

It's a little quiet here today.........:popcorn: 


Edited by i luvmusic 2 - 6/21/14 at 6:36pm
post #6615 of 7532
Quote:
Originally Posted by TrollDragon View Post

You are most welcome, this is a semi permanent type build since you would have to desolder the pins to change the tube later. Check the height of the base with the socket in it for heat shrink length, this pair worked at 1". I just placed the tube beside the assembled pieces, bottom of the tube flush with the top and measured to just before the edge of the base bottom. The socket does not have to be glued in place as the soldered tube holds it in snug. Also putting the wires into the pins can be a little fiddly but is very doable if you hold your tongue the right way and mutter a few choice words during the process. smily_headphones1.gif

 

This evening I tried to mount a sub-miniature in this way, but I failed miserably when it came to putting the wires into the pins. It would seem that I am lacking the necessary dexterity and patience, or perhaps I just didn't hold my tongue the right way or say the correct words. lol :)

 

So as usual, I'm back to easy and ugly again. :)

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