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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 (Post 2875159)
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 (Post 2875261)
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 (Post 2874909)

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.


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