After Dave Brown published his modifications for this filter, I decided to make a PCB for it.
Here’s what it looks like :
R26 the 100R resistor needs to be 110R if using LM4250, otherwise the filter stalls when the limit switch is on
I’ve got some (1) leftover pcbs to sell, 15€ + Shipping : 4€ Europe / 8€ Rest of the World
(PCBs are green solder mask / HASL plated)
Additional Infos :
Original Circuit (Marc Bareille): Papareil
Modifications (Dave Brown) : Modularsynthesis