UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Biggles · 24th Mar 2019, 7:41 pm

I think I may have an original frequency to voltage converter project from Maplins based on the LM331 chip complete with data file info all ready built on a pcb somewhere in the garage if you are interested. It hasn't been used for about fifteen years but you are welcome to it FOC if it will solve your problem. (If I can find it.)
Alan.

24th Mar 2019, 7:41 pm	#13
Biggles Rest in Peace Join Date: Feb 2004 Location: Hexham, Northumberland, UK. Posts: 2,234	Re: Low frequency indicator? I think I may have an original frequency to voltage converter project from Maplins based on the LM331 chip complete with data file info all ready built on a pcb somewhere in the garage if you are interested. It hasn't been used for about fifteen years but you are welcome to it FOC if it will solve your problem. (If I can find it.) Alan.