Sinclair ZX81 Computer with extended 16K Memopak

Sinclair ZX81 Computer with extended 16K Memopak

I took this out of storage.  The last time I used it was in the 1980's and it was working fine.  

I can't find the original 9 volt DC power supply and am scared to just plug in any power supply.

It should still be working but I cannot guarantee that it is.

Selling as per the photos and description without any cables or power supply.

PAYMENT TO BE MADE WITHIN 48 HOURS OF WINNING BID

PLEASE DO NOT BID IF YOU DO NOT INTEND PAYING.  IF YOU DO NOT PAY  I WILL RELIST THE ITEM, FILE AN SNC AND GIVE YOU A NEGATIVE RATING.  NO LIABILITY WILL BE ACCEPTED FOR ANY DAMAGE OR LOSS IN TRANSIT.  IN THE UNLIKELY EVENT OF SUCH DAMAGE OR LOSS THIS WILL HAVE TO BE TAKEN UP WITH THE RELEVANT COURIER OR BOBSHOP.  IF THE COLLECTION SHIPPING OPTION IS CHOSEN, YOUR ITEM WILL BE KEPT FOR 30 DAYS FOR YOU TO COLLECT, WHEREAFTER IT WILL BE SOLD TO DEFRAY STORAGE COSTS.