| july/august 1984 with radiation counter All that"s required to erase an EPROM is basically an ultraviolet (UV) lamp which radiates the EPROM...
| july/august 1984 with radiation counter All that"s required to erase an EPROM is basically an ultraviolet (UV) lamp which radiates the EPROM...
| 10 REM PROGRAM TO CALCULATE PARALLEL AND SERIAL RESISTORS 20 DATA 1.1.2,1.5,1.8,2.2,2.7.3.3,3.9,4.7,5.6,6.8,8.2 30 DIM R(12):FOR A=1 TO 12:R...
| for low voltage circuits This circuit, as the name suggests, indicates when a fuse has blown. As long as the fuse is good the LED lights con...
| ideal for those with perfect pitch It is sometimes useful to have a small instrument that can give a quick indication of the approximate val...
| easy-to-make reference circuit It is often interesting (if not required) to know whether an amplifier is going into saturation, or whether c...
| audio extremes filter The purpose of this filter is to at- tenuate very low and very high audio frequencies as signals in these fre- quency...
| hear the telephone ringing where you are, not where it is This has got to be one of the simplest electronic bell extension cir- cuits ever d...
| July/august 1984 a CPU detour During its initialization procedure, the 6502 processor starts by getting the start vector which is located at...
| "Some like it hot" You"ve just finished a hard day"s work and are heading home, looking forward to a relaxing evening. Sitting in your favou...
| saves components and energy Oh, for the good old days, when if you wanted to run a motor for two minutes you switched on the power for two m...