Problems With Loudspeakers IP012 (IP012E)

Broken wires can be soldered in the terminals. This problems cause the interruption or normal operation of a loudspeaker.

Problems in the cone can be corrected using a good glue.

Electronic Dice (CB4366E)
This circuit was obtained from an English magazine from 1977. The magazine no longer exists, but...
TTL to MOS Converter (CB5106E)
This circuit can be used as a shield for microcontrollers. The circuit is from American...
Transistor Bargraph (CB892E)
This circuit is na analog display of LEDs, operating from a voltage signal applied to mits input....