I understand the above kit has been discontinued, however, I would still very much like to build one. Could anyone please advise details of the transformer (ref. TRAF 01) used in the kit, in particular the input / output voltages? Also, is there anywhere a print of the pcb?
Hi
TRAFO 1 is this one:
https://www.velleman.eu/products/view/?id=11604&lang=en
with ordercode: LT44
Check with your local Velleman dealer 
Best Regards,
VEL337