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AW: Sensory 9 Speed ?
There is a technical way to tell what speed a SC9 is playing at, it goes as follows: The SC9 used a 555 chip for its clock and the clock speed that the chip ran at is based on the size of the capacitor between pins 1 and 6. The capacitor in my old SC9 (which I believe was listed at 1.5 MHz) was rated at 0.022 microfarads. Lower values of capacitance would generate greater speed from the 555 circuit. For 1.6 MHz the capacitor should be 0.0206 (or approxi- mately 0.021) microfarads which is such a small change that the tolerance of the manufacture may be responsible for the minor speed difference. For 2.0 MHz the capacitor should be 0.0165 microfarads and for 3.2 Mhz the capacitor would be 0.010 microfarads. I even made these changes myself to my old machine (which not only changed the speed of the computer but also changed the tone of the beeps and it ran fine for 6 months, until I tried to bump it up to 6.6 MHz when it died - OPPS! Auch wenn er letztlich seinen guten alten Sensory 9 "getoastet" hat - vielleicht hilft sein Artikel ja jemandem hier. Wenn nicht, es gibt auch eine klassische Referenz-Teststellung für die verschiedenen Sensory 9-Modelle (sollte auch für die "Speedies" taugen): Sensory 9 Teststellung 5rk1/p2R1Nb1/2r3pp/8/P3p3/7Q/1Pq3PP/5R1K w - - 0 1 |
Folgender Benutzer sagt Danke zu CC 7 für den nützlichen Beitrag: | ||
Eckehard Kopp (18.06.2017) |
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