Homebrew PCBs

Adam Seychell wrote:
> Balan, are you a home brewer doing plated through hole ?
> Not many are going to this level so I was curious what your 
> accomplishments are.
> 
> The microscope you mentioned sounds kind of specialized. I don't 
> think you will find something similar, unless of course you know 
> how the optics function in the device, and look for low cost mass 
> produced item with similar optical arrangement that's designed 
> for another purpose. What was the price for the through hole 
> microscope ?
> 
> Adam
> 
> Balan wrote:
> 
>>Hi
>> 
>> I was looking for a through hole micro scope that can be used to examine the walls of a drilled hole after plating and also to examine the exposed rings in a multilayer pcb. I found one at this website http://www.startinternational.com/pdf/Optical/31a_OPGCP875.pdf but it is expensive. Does anyone know where i can get a similar instrument at a cheaper rate? Is there any similar instrument?

Another way is to saw the board near a hole with a fine
saw, polish up the cross-sectional cut on a belt or disc
sander, then use a conventional microscope.