178 – Many magazines carry ads for clear plastic covers for IBM type keyboards to protect them from spills and greasy fingers. The TS2068 and TS 1500 keyboards can be given much the same type of protection by laying a piece of plastic wrap such as Saran over them. The keyboard “feel” is preserved too.
179 – Many of the new keyboards have a little raised bump on the letters F and J so that touch typists can feel when their fingers are on the home keys. You can fix our Sinclair keyboards in the same way by putting a little dot of clear plastic cement on these keys.
180 – You can check a group of cheap 3 1/2 inch floppy disks by holding them horizontally in the palm of your hand and then shaking it gently while looking at the metal hub. It should slide around and rattle a bit. If the disk is one of those which are hard to turn and which may stall your disk drive, the hub will not move unless you shake it vigorously.
181 – 0n the TS2068 with TMX disk system you get the important ^C keystroke by holding down BOTH shift keys and pressing C.
182 – If the bottom of your ZX81 screen becomes all clogged up and the computer refuses to ENTER you command or instruction, the usual way out is to unplug the computer. However then you will lose the program you have been typing in. Try the following two commands:
EDIT (Shift 1)
ENTER
These two commands will clean up the bottom of the screen without losing the part of your program already typed in.