Analog Digital Values Indicator (CB14702E)

We found this TTL circuit in a Texas Instruments optoelectronics manual. The power is 5 V and the LEDs are common.

| Clique na imagem para ampliar |

11 W BTL amplifier TDA1519B (CB15385E)
We found this amplifier for automotive use in the Philips Databook of 1990. The circuit has a...
Security Alarm (CB4866E)
This sophisticated alarm with traditional components was found in an ancient American...
Dynamic Transistor Tester (CB19463E)
This circuit is from a French book from 1981. The components used are common and the indicator...