In SX Microcontrollers, SX/B Compiler and SX-Key Tool, ShadowsSoldier wrote:

Some good advice, both. The pick of 5.120 MHz interestingly was to power my "Frankenstein creation", an amalgam of high speed async. binary counters, Johnson counters and  gates to produce this signal, until I listened to some good sense from you folks and got it all in one package - the SX! I had already ordered the crystal and I was going to divide down its frequency through a 14 stage binary counter to 80 KHz and power a Johnson flopping about but then I'd miss all the fun with the SX. The only trade off to increasing from 5.120 to 10.24 or anbother mult. MHz to reduce fluctuations would be increased heat and possibly skips in instructions. But one member already mentioned that could be minimized be using lower voltage 3.3v for the Sx. But I think before I do that I should measure the frequency with a good counter as suggested. I do have a digital o-scope and I think those are  a  little less reliable then your CRT type. I'll go on Ebay and look at some counters.

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