Electronic Morse Key (CB7313E)

This circuit was found in the magazine of radio amateurs 73 in a 90's edition. The components are current and the transistor is of general use.

| Clique na imagem para ampliar |

H Bridge Shield (CB4832E)
This H-bridge shield circuit appears several times in applications in this section and on this...
Germanium Diodes Regulator Protection (CB12362E)
This circuit was obtained in a 1978 publication, but it can be assembled with equivalent...
Simple Neon Indicator (CB18163E)
This simple circuit consists of a blinker for a very low consumption neon lamp, found in a 1982...