ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
They look nice Lardo but the Fuller is more hardy and has a more satisfying feel to the keys when in use,also over the years I've had to replace a few switches on the M'tech which have feeble thin sliding copper strips as their contact mech' and quick wear key top legends, the Fuller although shoddy looking is still going strong.
Just my 2 centsworth
http://www.ebay.com/itm/Timex-Sinclair- ... OSwfpVZGK5~
Memotech look the part but sorry have to disagree that they are the best, Fuller every time for me , they are shoddily built but the key action is solid and unlike the Memotech the contacts are not made out of cheese.