11/23 clock issue

Brent Hilpert wrote: [..] Oh yes Brent, now, since you've corrected every single bit from what I say'd, do you feel better? I'm repairing TTL based circuits and old computers for more than 30 years now and I still have to find an defective 74S240 with an Input at 2 Volts that destroyed an Xtal-Oscilltor Output. Oh yes, it's possible, maybe I'll struggle about one in the next 30 years, maybe not. Maybe I find one that read's the open input as Low and it ready High when I connect it with an pullup Resistor to Vcc. (learned that's the real test) For sure I won't leave it on the pcb. Do what you want, you always know better. Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741