Repairing & restoring HP82002 - advice needed

[albertofenini]

Dear All, we are back, to school, to work and to our lab ...
We would like to bring back to life some of our Classic Chargers,
some of them had the connector broken so the first advice is where we could find a good
replacement for that.
We know that modern USB cables are available to charge the units, but the fun would be less
than putting together these pieces ...
Also, does anyone has found a good replacement for the transformer ?
Looking around for some documentation we have found Jaques Laporte scheme but there is no indication of what the secondary voltage should be, differently from another scheme that
says 8V/5VA
thanks for any help !!!