Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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

PCB advice
PCB advice
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 2nd December 2008, 06:47 AM   #11
dewets is offline dewets  South Africa
diyAudio Member
 
Join Date: Jun 2004
Location: Somerset West, South Africa
Hi

I would not include the component overlay on the copperside of a valve/tube PCB.

With some of the voltages running on a valve/tube PCB you may just get an arc-over and wham!!!

But then I am over cautious and a nit picker about things that things that may go wizz-zap-wham and you smell that acrid stink of an electronic part "stepping-over" beyond it's design limits!

Great looking etched PCB there by the way. What tools process do you use to produce PCB's?
  Reply With Quote
Old 2nd December 2008, 12:08 PM   #12
cjkpkg is offline cjkpkg  United States
diyAudio Member
 
Join Date: Aug 2008
Location: Roswell GA
I did the laser jet printout on a transparency. Iron it on and give it a Ferric Chloride bath...

I do plan to coat the solder side after it is stuffed...I have seen some folks recommend using just a clearcoat acrylic. Would this be OK??? Or maybe a clear polyurethane?

Any advice here would be appreciated.

Carl
  Reply With Quote
Old 8th December 2008, 12:33 PM   #13
cjkpkg is offline cjkpkg  United States
diyAudio Member
 
Join Date: Aug 2008
Location: Roswell GA
I stuffed the pcb last night...Also on the copper side I ground away some areas that looked like they could arc over.

I am waiting on a couple items for the PSU - the B+ is too high right now so I am fine tuning it to get it down closer to 250V.

Click the image to open in full size.
Click the image to open in full size.
  Reply With Quote
Old 8th December 2008, 02:26 PM   #14
Cobra2 is offline Cobra2  Norway
DIY !
diyAudio Member
 
Cobra2's Avatar
 
Join Date: Apr 2002
Location: Stavanger, Norway
PCB advice PCB advice
Are this (cap-end) connected?

Arne K
Attached Images
File Type: jpg dsc02453.jpg (23.4 KB, 236 views)
__________________
Don't believe everything you think...
  Reply With Quote
Old 8th December 2008, 02:39 PM   #15
cjkpkg is offline cjkpkg  United States
diyAudio Member
 
Join Date: Aug 2008
Location: Roswell GA
Quote:
Originally posted by Cobra2
Are this (cap-end) connected?

Arne K

Dang it!!! Nice catch...I hopefully would have caught it before I applied power but I missed it until now...I will have to run a jumper to it now...UGH...
  Reply With Quote

Reply


PCB adviceHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
first amp advice prezden Class D 2 18th November 2008 10:05 PM
TT advice??? geordie Analogue Source 2 30th September 2007 04:04 PM
Advice for an amp wyomoose Subwoofers 1 12th February 2007 08:07 PM
New to DIY, looking for advice flubhubber Multi-Way 1 14th November 2005 03:48 PM
Poster in Musical Instrument forum needs bridging advice on BrianGT 4780 advice moving_electron Chip Amps 0 16th February 2005 12:37 AM


New To Site? Need Help?

All times are GMT. The time now is 08:11 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki