Thanks for the info guys
My .125" thick FR4 board is 3.125 inches tall
I have it sawed up on a CNC saw machine and then shipped to me
Years ago I use to saw up the sheets myself on a table saw
I now have it ripped up by my supplier and they do a way nicer job that I ever did
I don't rip it length wise here any more because it was such a huge PITA
I only cut it to length
If having boards 3.125 inches wide is not a problem, I can make the power supply board and the main boards?
Here is couple examples of the FR4 boards I make with eyelets
New source for ODS boards?
Moderators: pompeiisneaks, Colossal
Re: New source for ODS boards?
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https://hoffmanamps.com - Website
https://el34world.com - Website
https://el34world.com/Forum/index.php - Hoffman Forum
https://www.facebook.com/Hoffmanamps/ - Facebook page
https://www.youtube.com/channel/UC6QMFC-nnVtRyjCIIwNnBqQ - YouTube channel
https://el34world.com - Website
https://el34world.com/Forum/index.php - Hoffman Forum
https://www.facebook.com/Hoffmanamps/ - Facebook page
https://www.youtube.com/channel/UC6QMFC-nnVtRyjCIIwNnBqQ - YouTube channel
Re: New source for ODS boards?
Looking at the documented layouts for #102, #124 and #182, would it be accurate to say that the main/preamp board is pretty much the same board for all 3 amps?
But the B+ rail layout board is different for each of those?
So, one would use the same main/preamp board and just switch out the B+ rail board to do each of those?
With respect, 10thtx
But the B+ rail layout board is different for each of those?
So, one would use the same main/preamp board and just switch out the B+ rail board to do each of those?
With respect, 10thtx
- ValvElectric
- Posts: 40
- Joined: Sat Apr 04, 2015 5:11 am
- Location: Santa Cruz, CA
Re: New source for ODS boards?
To the best of my knowledge, though some of the preamp board values vary, the layout remains pretty much unchanged.
As for the power supply boards, the layout of #102 and #124 are relatively similar, whereas the precision power supply on #183 is a bit more complex and calls for a PCB.
Doug, it wasn't until recently that I noticed your relay boards and had contemplated giving them a try in my next build.
Does anyone else have any experience using them?
As for the power supply boards, the layout of #102 and #124 are relatively similar, whereas the precision power supply on #183 is a bit more complex and calls for a PCB.
Doug, it wasn't until recently that I noticed your relay boards and had contemplated giving them a try in my next build.
Does anyone else have any experience using them?
Re: New source for ODS boards?
That makes it easier if I only have to make one type of board
I sell tons of the relay switch boards
The Power supply boards and single relay boards
I sell tons of the relay switch boards
The Power supply boards and single relay boards
https://hoffmanamps.com - Website
https://el34world.com - Website
https://el34world.com/Forum/index.php - Hoffman Forum
https://www.facebook.com/Hoffmanamps/ - Facebook page
https://www.youtube.com/channel/UC6QMFC-nnVtRyjCIIwNnBqQ - YouTube channel
https://el34world.com - Website
https://el34world.com/Forum/index.php - Hoffman Forum
https://www.facebook.com/Hoffmanamps/ - Facebook page
https://www.youtube.com/channel/UC6QMFC-nnVtRyjCIIwNnBqQ - YouTube channel
Re: New source for ODS boards?
I've used Doug's relay boards on 4 builds and they are superb and very easy to work with. Very quiet and they work great!
And there is a ton of info on EL34 world on how to hook them up complete with photos, schematics and layouts.
http://el34world.com/Forum/index.php?topic=14348.0
And even more in the Hoffman Library of Information
With respect, 10thtx
And there is a ton of info on EL34 world on how to hook them up complete with photos, schematics and layouts.
http://el34world.com/Forum/index.php?topic=14348.0
And even more in the Hoffman Library of Information
With respect, 10thtx
Re: New source for ODS boards?
Thanks 10thtx
The library hook up info page for my relay boards is here
http://el34world.com/projects/relay_switch.htm
[img550]http://el34world.com/projects/images/Img_7549.jpg[/img]
The library hook up info page for my relay boards is here
http://el34world.com/projects/relay_switch.htm
[img550]http://el34world.com/projects/images/Img_7549.jpg[/img]
https://hoffmanamps.com - Website
https://el34world.com - Website
https://el34world.com/Forum/index.php - Hoffman Forum
https://www.facebook.com/Hoffmanamps/ - Facebook page
https://www.youtube.com/channel/UC6QMFC-nnVtRyjCIIwNnBqQ - YouTube channel
https://el34world.com - Website
https://el34world.com/Forum/index.php - Hoffman Forum
https://www.facebook.com/Hoffmanamps/ - Facebook page
https://www.youtube.com/channel/UC6QMFC-nnVtRyjCIIwNnBqQ - YouTube channel
Re: New source for ODS boards?
Hey guys- I've received a few emails and PMs regarding the boards. I have a few remaining individual boards if Doug or others can supply the main and relays. I'm not able to update the website at this time as the computer I used to build it is in storage between recent moves.... Below is what is left & I just updated PayPal to not oversell anything. Please allow a few days to process and ship. Thanks.
(15) Precision Power Supply
(14) Standard Power Supply
(10) Bias/Rectifier
(6) Relay Power Supply
(30) FET
(11) Small (FET) Insulator
(15) Precision Power Supply
(14) Standard Power Supply
(10) Bias/Rectifier
(6) Relay Power Supply
(30) FET
(11) Small (FET) Insulator
http://agbamplifiers.com/
Dumble Clone Circuit Boards
Dumble Clone Circuit Boards
Re: New source for ODS boards?
The agbamplifiers.com site is dead. Where can I get a precision power supply board?
I build and repair tube amps. http://amps.monkeymatic.com
- dorrisant
- Posts: 2613
- Joined: Tue Sep 21, 2010 1:27 pm
- Location: Somewhere between a river and a cornfield
- Contact:
Re: New source for ODS boards?
Dave (Colossal) maybe?
"Education is what you're left with after you have forgotten what you have learned" - Enzo