25. VE1BRA says that since he put his ZX81 in a Hammond cabinet, there was no more use for the old chassis. He peeled off the keyboard and cut out the logos and glued them over the keycaps. The functions had to be cut out separately and glued on the front side of the Keycaps; they fit well and they look not bad. (A lot of work.)
26. VEBRA also says that with 12 VDC in the shack, he used a 7885 voltage regulator to power the computer. It seems to reduce some of the interference on the TV screen.
27. AD1B says that I recently purchased a Suntronics keyboard for my ZX 1000. There is no point in spending any money on a new computer, even with the latest round of price reductions because my Sinclair does a good job. The only drawback with the computer is the lack of a true keyboard. The Suntronics filled the gap very nicely and I have enjoyed it very much. One problem did develop with the keyboard after a couple of months of operation. The keying became erratic and unpredictable. The cause of the problem was oxidation of the copper terminals on the connecter ribbon. I thought of the usual methods used to clean these, eraser, carbon tet, etc. Then I decided to fix the business once and for all by hard wiring the keyboard to the PC board. This worked out very well. I used multi-strand 18 gauge wire for the job. It only takes 13 pieces. In order to make the keyboard a hard-wired accessory, some care must be taken in the process. The first two attempts proved unsatisfactory due to wiring errors. Go slow and copy the wiring pattern indicated by the two ribbon connectors in the computer. One other thing, it has been recommended that the soldering iron be heated, then unplugged before working on the computer PC board. The reason is to avoid the damage that static electricity can sometimes cause.