Elektor Team (9531)

1-07-1980 | 8 converter The 4047 low power astable/mono- stable multivibrator constitutes an excellent heart for a simple converter which can provide a...

1-07-1980 | This circuit is similar in principle to, and can be mounted in the same box as, the 555 tester described elsewhere in this issue. The opamp...

1-07-1980 | 1 2 0 DI R1 10 automatic cycle lighting Re1 R2 7 IC1 R4 5V 5_100mA La1 (:)6V 555 Cal Lag 3W 3W 6 6V Cl 4 x 1,2 V 450 mAh 4 x 1,2 V 450 mAh T...

1-07-1980 | 7-08 elektor july/august 1980 The principle behind this circuit is the fact that the average voltage of a squarewave is proportional to its...

1-07-1980 | 12 A great deal has been published about exposure meters and develop- ment timers in electronic magazines and Elektor is no exception. How-...

1-07-1980 | For an ordinary cassette tape to be used as long term memory with the Elektor BASIC microcomputer a special cassette interface will have to...

1-07-1980 | 7-10 elektor july/august 1980 0103 D6,07 MPSU03 R27 R23 36V r— T1s- I re r - -n 36V Siliconix (MOT.) R2 Op/63V R3 R130 2x 2N2222 R5 116 R2...

1-07-1980 | 7-12 elektor july/august 1980 Some receivers have Varicap tuning, but no AFC. If this facility is desired, it seems a pity to have to add ye...

1-07-1980 | 1 +9V Li 4004H 5 560n The 12 aerial described in the June edition of Elektor consists of two parts. One of these is a coil which must have a...

1-07-1980 | This device utilises the fact that an air current has a cooling effect on an object which is warmer than its surroundings. The object cooled...