<p>Supposing I had lost one of the 4700 pF capacitors...<br />
and further supposing I found a 1% (yes, 1% !!) "Rel-cap" in my junk box, marked 5547 pF which with a bit of persuasion would fit into the empty space for C31. </p>
<p>Now, I'm a software engineer with a soldering iron, but I'd think that might be an OK sub.</p>
<p>Comments?
</p>
