Sequential Arrow (CB6377E)

We found this circuit in an Electronics World of 1967. The components are of the time and incandescent lamps are used.

| Clique na imagem para ampliar |

4 A 79xx Negative Current Regulator (CB15341E)
This circuit is from Motorola's Linear Interface ICs from 1993. The circuit uses a booster...
Electronic Die (CB12266E)
By pressing and releasing PB1, only one LED is lit, drawing a number from 1 to 6, as in a die. The...
Bass and Treble Control Preamplifier (CB16800E)
This circuit uses a 709 operational amplifier that is no longer common today. However, the same...