Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 25th April 2013, 06:42 PM   #11
diyAudio Member
 
Join Date: Dec 2011
hi,

I'm very happy for the information, thanks. I think now which is the best option for me but i find very interesant the option of tubelab with the individual modules.

Thanks
  Reply With Quote
Old 25th April 2013, 07:24 PM   #12
tomchr is offline tomchr  United States
diyAudio Member
 
tomchr's Avatar
 
Join Date: Feb 2009
Location: Greater Seattle Area
I've used a "peg board" made from a piece of plywood and some brass nails for prototyping. That's a bit of a pain to work with, though. My favorite is a scrap piece of FR-4 PCB material with holes drilled in it for the tubes. I use some terminal strips for connecting components. That works well enough to allow me to debug the circuit before committing to a PCB layout.

You can see examples of both methods here:
6LU8 Spud - Request for comments

~Tom
__________________
21st Century Maida Regulator, Universal Filament Regulator, Damn Good 300B, Novar Spud, and more...
Neurochrome : : Audio - http://www.neurochrome.com/audio - Engineering : : Done : : Right
  Reply With Quote
Old 25th April 2013, 11:53 PM   #13
Dagwood is offline Dagwood  New Zealand
diyAudio Member
 
Dagwood's Avatar
 
Join Date: Feb 2010
Location: North of Auckland
Quote:
I dont have details of the build. The 4 meters are: 1 250ma, 1 200v and 2 500v. I put these since a few of my HV supplies do not have built in metering. 1/2 of the 9 pin sockets have share the same heater voltage. The 8 pins and the other 1/2 of the 9 pins share another.

Initially i labled the 9 pins for the 12ax7 pinout. I later numbered the jacks so i could use any other pinout.

I added another breadboard for flexibility, i also use it to test solid state stuff.
I think this is a great idea, compact, with space to add more

Any chance you could post a top and internal view?

Cheers
__________________
If you keep digging in the garden of failure you will eventually find success
  Reply With Quote
Old 26th April 2013, 12:51 AM   #14
diyAudio Member
 
Join Date: Jan 2008
Location: Southern California
I have been away from my lab a few months now, Lab is in the west coast, i am on the east coast with a new job. The pictures are 5 years old, never took a underside picture. Will go back to LA in a few weeks to pack, will try to get an underside shot.
Attached Images
File Type: jpg image.jpg (458.2 KB, 102 views)
  Reply With Quote
Old 26th April 2013, 01:30 AM   #15
Dagwood is offline Dagwood  New Zealand
diyAudio Member
 
Dagwood's Avatar
 
Join Date: Feb 2010
Location: North of Auckland
Awesome, might kind of copy this if you dont mind
__________________
If you keep digging in the garden of failure you will eventually find success
  Reply With Quote
Old 26th April 2013, 03:12 AM   #16
AlanL is offline AlanL  United States
diyAudio Member
 
Join Date: Dec 2007
Location: Colorado
Our friend Pete Millett offers some handy tube sockets for breadboarding
pmillett | eBay
  Reply With Quote
Old 28th April 2013, 04:37 PM   #17
diyAudio Member
 
Join Date: Aug 2008
I've used prototyping pcb boards sold on Ebay by various Chinese sellers. You can find them by searching "prototyping pcb board tube".

They have footprints for several 7, 8 or 9 pin tube sockets, size 150x200mm barely enough to assemble all the power push-pull amplifier stuff, thickness 1.6mm makes them too flexible and fragile to cracking.

Images of prototyping boards with KT88 Williamson ans floating paraphase /push-pull attached.

Extra terminals soldered on board used to switch between penthode, UL, triode and CFB modes, turn GNFB on and off, and attenuating RC networks. Very handy to tweak and debug amplifier.
Attached Images
File Type: jpg DSF1169.jpg (291.5 KB, 55 views)
File Type: jpg DSF1168.jpg (301.6 KB, 51 views)
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Anyone know where to get this type of breadboard? ottopilot Tubes / Valves 7 27th September 2012 01:48 PM
Breadboard Class D!! nitrate Class D 218 12th September 2011 04:04 PM
Breadboard help g(f(e)) Tubes / Valves 4 23rd December 2010 08:38 PM
IRS2092 on breadboard rob mullen Class D 31 27th November 2010 12:24 AM
Breadboard 6C33C-B S.E.T Alastair E Tubes / Valves 3 26th April 2005 07:59 PM


New To Site? Need Help?

All times are GMT. The time now is 02:51 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2