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AW: Mess Emulator für diverse Schachcomputer ist fertig!
hap, both Mondial solve a problem in the same time, I measured both near an AM-Radio, and the frequency is indeed near 1MHz.
As for the active buzzer, look here: https://www.addicore.com/Active-Buzzer-5V-p/146.htm Edit: The beep could also be generated with the 74LS14 and 74LS74 next to the silver inductor (or XTAL?) top left. Geändert von bataais (28.07.2019 um 15:53 Uhr) |
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| Thema | Erstellt von | Forum | Antworten | Letzter Beitrag |
| Info: Mephisto Emulator für den Mac fertig | RolandLangfeld | Die ganze Welt der Schachcomputer / World of chess computers | 3 | 09.09.2007 22:56 |