[mick22]

power dump circuit I feel is not needed for such low voltages . I think.
this time chk if the tantalums are rated for 35v, the 25v tantalums generated so much heat when burnt that they burned a hold in the UHU pcb.

Thanks IRFAN,
i did have that problem,but escaped without damage to the
board,the caps just exploded and left a dirty mess.
rgds mick.