A Crystal is not a apply DC power get oscillations out. I think of it like a crystal glass that get thumped with your finger and the LC resonator(s) keep it going and keep it pure.
Start reading 8-88 and pay attention to 8-95 if you don't have any output. Jack -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason Rabel Sent: Monday, January 22, 2007 7:50 PM To: [EMAIL PROTECTED]; 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] 10811 Repair (was warmup / bad batch) What voltage goes to the crystal? I may have had my scope scale too high and just didn't notice, but at first glance I don't think it was getting power. Jason -----Original Message----- Yes, the black wires are the thermistor. The crystal has three wires. Two are actually connected to the crystal electrodes. The third is the case. The case is fastened to the casting with a screw. The only way the casting gets an electrical ground is by way of the crystal ground screw and ground wire to the board. The wires are welded to the crystal, so if you want to disconnect one of them, you have to unsolder it from the PC board. Rick Karlquist N6RK _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
