UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Looking for infomation on frequency counter

mickm3for · 28th Nov 2020, 5:23 pm

Hi i have put a 150 pf trimmer instead of the 22pf from pin 3 to ground this now lets me ajust the frequency of the osc counter now reads 144.430/1 the value of cap is 121pf but it works ?? seams right at 10mhz as well as 1mhz from my quartzlock will contact g8ckt as it has his call etched on to the pcb thanks to all Mick

28th Nov 2020, 5:23 pm	#5
mickm3for Heptode Join Date: May 2015 Location: Chatham, Kent, UK. Posts: 964	Re: Looking for infomation on frequency counter Hi i have put a 150 pf trimmer instead of the 22pf from pin 3 to ground this now lets me ajust the frequency of the osc counter now reads 144.430/1 the value of cap is 121pf but it works ?? seams right at 10mhz as well as 1mhz from my quartzlock will contact g8ckt as it has his call etched on to the pcb thanks to all Mick