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Old 26th Apr 2020, 11:19 pm   #39
Oldcodger
Nonode
 
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
Default Re: Another DIY voltage reference...

Quote:
Originally Posted by mhennessy View Post
Thanks, Andy

The secret of Veroboard is simple: 0.1" graph paper

I'm not sure how easy it is to find these days, but there are websites that can create it for you. I'd guess that a laser print would be better than inkjet, as you'll do a lot of rubbing out as part of the process - you'll see what I mean when you see this example: https://www.vintage-radio.net/forum/...1&postcount=52

If you haven't see it before, that thread is full of useful tips about Veroboard...
For smaller projects that don't warrant a PCB, I use one of the PCB programs. Express is my tool of the moment. First step, make a master. I use a 9 hole wide by 25 hole long x .1" matrix and draw my tracks.
I make them circa 0.1 wide with 0.04 between them, so spacing between the holes is circa 0.06.
Add in track holes and it's sorted.
that is the underside but I also make a tp view to help locating the wire links.

It might take a few tries, but you've always got the master and the last best guess. For track cuts, I use a circle ,track width in a different colour. For links I use another colour. Components, I measure and
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