Hi Andy,
As it happens I used to live in south Leicestershire although I live in North Yorkshire now. I'm going to try and visit on Sunday, what time are the doors open, is parking available nearby?
I've made a little list, I have an interest in these machines.
Hp calculator
Texas calculator
Munroe calculator
Commodore calculator
Royal calculator
Curta calculator
EE Deuce
Matmos (Trimuph Adler) CP/M
MK14
Jupiter ACE
Ohio C1P
Sinclair QL
DEC pdp-8f
DEC pdp-11
RC2014
xbeaver Nascom Z80 emulator
FPGA Z80 emulator
FPGA PDP11 emulator
PiDP8i
Tandata Prestel adapter
Minicom acoustic coupler / terminal
Some of the above I have working, others are just dreams.
Kind regards, David