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-   -   Are these tube PCBs any good ? (http://www.diyaudio.com/forums/tubes-valves/205139-these-tube-pcbs-any-good.html)

zobsky 23rd January 2012 03:44 PM

Are these tube PCBs any good ?
 
Blank tube PCB's

Universal prototype PCB fr Tube Amplifiers Preamp 2015C | eBay

grhughes 23rd January 2012 07:17 PM

I wouldn't spend my money in China! It seems that all these boards do is provide holes for sockets. IMHO, one would be better off by building on a metal sheet and using point to point wiring or fiberglass modules with Y studs like Keystone sells. Ray

zobsky 23rd January 2012 08:51 PM

Quote:

Originally Posted by grhughes (http://www.diyaudio.com/forums/showthread.php?p=2875159#post2875159)
I wouldn't spend my money in China! It seems that all these boards do is provide holes for sockets. IMHO, one would be better off by building on a metal sheet and using point to point wiring or fiberglass modules with Y studs like Keystone sells. Ray

Yes, that's been my approach in the past, broadly speaking. What are Y studs ?

grhughes 23rd January 2012 09:10 PM

Keystone Electronic Hardware makes Military fiberglass boards with Y solder posts. You can buy them in any config with any type of posts (double sided, single sided, Y ). Keystone Electronics Corp. - Keystone Electronics World class manufacturer of interconnect components & hardware catalog page 131, (MS27249). These are not as cheap as the china product but Mil spec quality. There is another guy on ebay that sells a similar product. Many of the tube type classic preamps used this type of construction; Harmon Kardon, Marantz, McIntosh. You could also make your own if you have a drill press. I found the posts on ebay. Concord electronic Hardware also makes them.Concord Electronics, Inc. Store | About Concord Electronics, Inc.

Terminal Post Solder Lug Stud 10 ea. NOS Tube Amplifier | eBay
Ray

boywonder 23rd January 2012 09:10 PM

If you are prototyping octal tubes, ApexJr has a great solution for $2.00......

Potter & Brumfield octal socket with screw terminals.

http://www.apexjr.com/images/PotterSccket.jpg

Tube Scokets

grhughes 23rd January 2012 09:11 PM

On ebay search for TURRET BOARDS. Ray

Loren42 23rd January 2012 10:44 PM

Quote:

Originally Posted by zobsky (http://www.diyaudio.com/forums/showthread.php?p=2875261#post2875261)
What are Y studs ?

[p]
Try building them with soda straws and you will see Y studs.

Ciu 24th January 2012 06:37 AM

Quote:

Originally Posted by zobsky (http://www.diyaudio.com/forums/tubes-valves/205139-these-tube-pcbs-any-good.html#post2874909)

Hello !

I'm using these parts for some years...
Most of pins are "metalized thru holes", not like usual PCB, so you can solder-unsolder many times
The boards are rigid, due to it's thickness ...

R.C.

pdavis68 5th February 2016 04:16 PM

I realize this is an old post, but the OP is still an active member, so I thought I'd chime in. I have one of these boards (and they're available off of AliExpress for as little as $12).

I have used mine for a breadboard. Here's a pic with a custom amp breadboarded. LOVE it! I've got an amp on it right now and yesterday decided to test out a design for an external tube preamp/overdrive pedal, so just added the tube and components and ran it straight into the input of the amp that was already breadboarded. Love the flexibility it gives me and it's surprisingly quiet considering the lack of a chassis or any real shielding (other than some shielded coax).`


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