Zorched Circuit Boards

[Max Harelik]

 From time to time, I see issues/problems discussed that focus on 
deteriorated/damaged/burned circuit boards. For example, two that affect 
Kenwood hybrid radio owners often are the RF Power Amplifier board and 
the Power Supply board. Generally, the solution is refurbishing existing 
runs and solder connections, but sometimes requiring patching in wires 
to replace runs that are beyond recovery.

My question is this: Does there exist anywhere a library of radio 
circuit board masks, such that a graphic of the board mask could be 
downloaded and used (perhaps through some of the circuit board 
fabricators discussed in earlier messages) to create a new replacement 
board?

There are obviously copywrite and patent issues that potentially apply. 
But, in the case of thirty-year-old radios such as the hybrids, this is 
not likely to be a problem.  And, there are examples of board 
replacement (usually in the form of modification kits) in today's radio 
market. The one that comes immediately to mind is Harbach's Heathkit 
SB-200 Power Supply board (and components), which I built and installed 
in my own amplifier.

I see potential for such a library, particularly for those of us that 
like to work with older radio equipment of whatever brand/manufacture. 
So, does anyone know of such a service/library? Anybody interested?

73,
Max, K5OVW

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