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<DIV dir=ltr align=left><SPAN
style="FONT-FAMILY: Calibri, sans-serif; COLOR: rgb(31,73,125); FONT-SIZE: 11pt">I
believe our board is from Dixon.</SPAN></DIV>
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color=#800080><U><A
href="https://vintagetek.org/oscilloscope-artist/">https://vintagetek.org/oscilloscope-artist/</A></U></FONT><O:P></O:P></SPAN></DIV></DIV></BLOCKQUOTE>
<DIV><SPAN class=520573500-10082021> Yes, that is indeed a Doc Sketchy
original. I can make another board for anybody who wants one.</SPAN></DIV>
<DIV><SPAN class=520573500-10082021></SPAN> </DIV>
<DIV><SPAN class=520573500-10082021>I also did a simulation in Multisim, but
frankly, it's not that enlightening.</SPAN></DIV></BODY></HTML>