Run your z50 off of AA's I have three of these, new and unused - as seen at the back of the photograph.
the open one at the front is my one.
Equivalent of 12v DC
Part numbers are:
FRU 02K6142
ASM 10L1977
Requires 8 AA's - BATTERIES NOT INCLUDED
Weight is nominal < 100g. Postage insurance is £3.30 if you want it on-top of www.royalmail.com postal tarrifs. If you want more than one I will bundle shipping.
In line with my parts policy -
All offers considered