Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

Return to Tube DIY Asylum

Message Sort: Post Order or Asylum Reverse Threaded

Six years of DIY

82.53.173.120
Posted on October 18, 2014 at 07:25:48
6AS7_6SN7






























What a wonderful hobby is this!

 

Hide full thread outline!
    ...
RE: Six years of DIY, posted on October 18, 2014 at 07:41:04
connieflyer
Audiophile

Posts: 130
Location: Michigan
Joined: March 11, 2014
 That is one beautiful collection. I feel bad now, will have to take my gear outside and shoot it, as it never grew up like this!

 

RE: Six years of DIY, posted on October 18, 2014 at 07:47:07
needtubes
Audiophile

Posts: 66
Joined: December 11, 2011
 Very nice.

Are the 6AS7/6N13 amps all OTL? Do you have any schematics for them?

 

Absolutely stunning! (nt), posted on October 18, 2014 at 09:35:48
Thom
Audiophile

Posts: 232
Joined: March 6, 2000
 No message here

 

RE: Six years of DIY, posted on October 18, 2014 at 12:40:14
kyle
Audiophile

Posts: 1839
Location: London Ontario
Joined: September 29, 1999
 It all looks beautiful. Nice work.
With that many paralleled tubes, is there a tube to tube balance problem? Is it difficult to account for tube to tube differences?
Thanks.

 

RE: Six years of DIY, posted on October 18, 2014 at 12:51:38
Stuben
Audiophile

Posts: 669
Location: Guber Ohio
Joined: December 30, 2005
 Cool builds..

OTL builds?

Stuben

 

RE: Six years of DIY, posted on October 18, 2014 at 13:21:39
c1ferrari
Audiophile

Posts: 640
Location: Southern California
Joined: March 16, 2001
 Cool!

I hope you can address some of the queries posted earlier.
What type of loudspeakers are you using?

Thanks.

Vbr,
Sam

 

Excellent work!, posted on October 18, 2014 at 15:07:41
Triode_Kingdom
Audiophile

Posts: 10049
Location: Central Texas
Joined: September 24, 2006
 Thanks for posting the photos, they sure inspire me to get my own projects in gear!


 

RE: Six years of DIY, posted on October 19, 2014 at 00:15:56
6AS7_6SN7
 Over time I have always shared the schematics in the Asylum.

By the way, some of them are OTL, others more conventional.

You will find the basic OTL schematic here:
http://db.audioasylum.com/mhtml/m.html?forum=otl&n=31976&highlight=modified+futterman&r=&search_url=%2Fcgi%2Fsearch.mpl%3Fforum%3Dtubes%26searchtext%3D6gf7

For the non conventional ones please search Tube DIY "stonehenge schematic" or the past posts of myself (6AS7_6SN7).

 

RE: Six years of DIY, posted on October 19, 2014 at 00:37:25
6AS7_6SN7
 When paralleling tubes it takes some time to swap tubes around in order to get the same overall current in the overall push and pull sides.

6AS7/6080 tubes can be easily wired in such a way to have half tube working in the push and the other half in the pull side, as the current imbalance of the triodes inside the same glass is quite limited.

Similar considerations apply to 829B/3E29/GU-29/GI-30 double tetrodes.

In the end of the tweaking a close matching is usually guaranteed.

As a rule of thumb, you have to collect ten 6AS7/6080 tubes in order to manually select two 4 + 4 matched sets.
Matched' in this context must be interpreted in the above sense, as there can be differences of up to 50% in the plate currents of each tube.
By the way, the difference of plate currents tends to fade away over years of regular use.

 

RE: Six years of DIY, posted on October 19, 2014 at 00:43:13
6AS7_6SN7
 Since 1989 I am listening to ESB 7/08.

http://www.officinadelsuono.eu/wp-content/uploads/2013/06/IMGP7187.jpg

The designer of these marvels has recently passed away and the ESB firm was shut down before year 2000.

Sic trasit gloria mundi!

 

RE: Six years of DIY, posted on October 19, 2014 at 10:08:44
c1ferrari
Audiophile

Posts: 640
Location: Southern California
Joined: March 16, 2001
 Thank you for all of your pictures.
I regret my total unfamiliarity with ESB.
I'm confident they sound great with your amps!

Vbr,
Sam

 

RE: Six years of DIY, posted on October 19, 2014 at 16:23:25
chrismercurio
Audiophile

Posts: 155
Joined: August 4, 2008
 Who did the metal work of the guitar amp? I like that one best, but they are all nice looking!

Best,

 

RE: Six years of DIY, posted on June 8, 2015 at 07:53:31
kagliostro
Audiophile

Posts: 2
Joined: June 8, 2015
 Oh, I really like this stuff

BRAVO

---

Please can you share the schematic of the guitar amp or only give me the data about Power Transformer and Output Transformer and the name of the power tube

Is a long time I'm thinking to build something for guitar use with an 829B or an 832

Many thanks in advance

K

 

RE: Six years of DIY, posted on June 13, 2015 at 00:35:28
6AS7_6SN7



You are welcome.

http://db.audioasylum.com/mhtml/m.html?forum=tubediy&n=206973&highlight=guitar+6AS7_6SN7&r=&search_url=%2Fcgi%2Fsearch.mpl%3Fsearchtext%3Dguitar%26b%3DAND%26topic%3D%26topics_only%3DN%26author%3D6AS7_6SN7%26date1%3D%26date2%3D%26slowmessage%3D%26sort%3Dscore%26sortOrder%3DDESC%26forum%3Dtubediy

http://db.audioasylum.com/mhtml/m.html?forum=tubediy&n=206093&highlight=6AS7_6SN7+guitar+amp&r=&search_url=%2Fcgi%2Fsearch.mpl%3Fsearchtext%3D6AS7_6SN7%2Bguitar%2Bamp%26b%3DAND%26topic%3D%26topics_only%3DN%26author%3D%26date1%3D%26date2%3D%26slowmessage%3D%26sort%3Dscore%26sortOrder%3DDESC%26forum%3Dtubediy

http://db.audioasylum.com/mhtml/m.html?forum=tubediy&n=206946&highlight=guitar+6AS7_6SN7&r=&search_url=%2Fcgi%2Fsearch.mpl%3Fsearchtext%3Dguitar%26b%3DAND%26topic%3D%26topics_only%3DN%26author%3D6AS7_6SN7%26date1%3D%26date2%3D%26slowmessage%3D%26sort%3Dscore%26sortOrder%3DDESC%26forum%3Dtubediy



http://db.audioasylum.com/mhtml/m.html?forum=tubediy&n=218745&highlight=guitar+6AS7_6SN7&r=&search_url=%2Fcgi%2Fsearch.mpl%3Fsearchtext%3Dguitar%26b%3DAND%26topic%3D%26topics_only%3DN%26author%3D6AS7_6SN7%26date1%3D%26date2%3D%26slowmessage%3D%26sort%3Dscore%26sortOrder%3DDESC%26forum%3Dtubediy

 

RE: Six years of DIY, posted on June 13, 2015 at 06:26:21
kagliostro
Audiophile

Posts: 2
Joined: June 8, 2015
 Many Many Thanks

K

 

Page processed in 0.031 seconds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]