Quadchuck
Well-known Member
I have a second Zero 100 and 1 or 2 years back I got a Heathkit AD1507 cd-4 decoder on ebay that someone sold very cheap.
I was surprised that there were no other bidders.
As you know it uses that cd-4 chip, I tried to make my own decoder years back with ECG chip but their schematic had flaws
and it worked only so so.
This decoder works good, but appears someone made it but never finished mounting or using.
Now with AT14 cart, heath decoder and zero100 I did something I always wanted to do and it works fairly well.
I combined them , see pix
T
I was surprised that there were no other bidders.
As you know it uses that cd-4 chip, I tried to make my own decoder years back with ECG chip but their schematic had flaws
and it worked only so so.
This decoder works good, but appears someone made it but never finished mounting or using.
Now with AT14 cart, heath decoder and zero100 I did something I always wanted to do and it works fairly well.
I combined them , see pix
T