Kwak clock not working - pls advise

[fossil2k]

Originally posted by QSerraTico_Tico



Then use the 75-Ohm cable with 75-Ohm termination resistor!

Ok..Thanks.

[Richard]

Hi Guys,

Here is the simple power supply I used as a pre-regulator for the Kwak clock. The capacitors before and after the Siemens common mode choke (cmc) are Rubycon ZL, with Rubycon XYA after the regulator. You can use the 100mA 78L12 TO-92 regulators as the current draw is low. I had a 2.39mH cmc on hand but most cmc's around that value are fine.


to answer a quote with a quote;

Just thinking where to get a 50ohm coax?? I only have in hand 75ohm.

I don't have a probe so what i did was adj the tune pot from +0.5 to +0.6V.

just measure at the wiper of the 2K pot (to ground) that goes to pin 3 of the AD8561.