Re: [time-nuts] PCB for frequency dividers

Dear Dave, If there is one board left, I would like to buy and try one. Shipping will be to the Netherlands, so that won't be a problem. Could you send met the BOM and the circuit diagram? Thank you, Best regards, Jeroen David C. Partridge schreef: I've taken a bit of a risk and ordered 20

Re: [time-nuts] PCB for frequency dividers

David, I am interested in your PCB and frequency divider project. How can I contact you directly? Joe ([EMAIL PROTECTED]) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David C. Partridge Sent: Tuesday, July 29, 2008 11:12 AM To: 'Discussion of

Re: [time-nuts] Leap Second Pending

The mechanical clepsydra shown overleaf is simple in operation. The cylindrical vessel is slowly filled with water and a float with a stem and rack engages the wheel to which the hour hand is attached. As the vessel fills so the float rises and the hour hand is made to rotate. When the

[time-nuts] What is a Time-Nut grade Zero Crossing Circuit?

Can you point me to a Time-Nut grade Zero Crossing circuit that I can feed a Actel Igloo FPGA (It doesn't like sine waves)? For the sake of discussion the source signal is a ThunderBolt at 10 MHz. The FPGA is rated to 350 MHz, so no need to have a 5. GHz Zero Crossing circuit.

Re: [time-nuts] Leap Second Pending

[EMAIL PROTECTED] wrote: The mechanical clepsydra shown overleaf is simple in operation. The cylindrical vessel is slowly filled with water and a float with a stem and rack engages the wheel to which the hour hand is attached. As the vessel fills so the float rises and the hour hand is

Re: [time-nuts] What is a Time-Nut grade Zero Crossing Circuit?

Hi Bob, since the sine wave is symmetric, you can use a simple LVC type CMOS inverter with 1M Ohm resistor from input to output, and a 100nF cap (or the largest COG cap you can find) from the input of the inverter to the sine wave output. You may also want to load the sine wave output

[time-nuts] Complete Lucent RFTG setup on eBay

There have been lots of messages about how the Lucent RFTG disciplined oscillator bits work in a system. This, from its appearance, is the entire set up with all necessary cables and proper connections: 1 - Lucent RFTGm-II-Rb 15MHz Frequency Reference with 10MHz output 1 - Lucent

Re: [time-nuts] What is a Time-Nut grade Zero Crossing Circuit?

[EMAIL PROTECTED] wrote: Hi Bob, since the sine wave is symmetric, you can use a simple LVC type CMOS inverter with 1M Ohm resistor from input to output, and a 100nF cap (or the largest COG cap you can find) from the input of the inverter to the sine wave output. You may also

Re: [time-nuts] Complete Lucent RFTG setup on eBay

I have no connection with this seller, but have done business, several times in the past, and consider them to be very reputable. Had, K7MLR