Buffer with MOSFET (CB26318E)

This boost amplifier was found in a Popular Electroniics from the 90s. The circuit operates up to 20 MHz depending on the coils used.

| Clique na imagem para ampliar |

Drill Speed Control (CB1353E)
This simple half-wave control using an SCR, which may be TIC106, has been obtained from a US...
Control for miniature railways (CB7079E)
Found in an American publication from 1968, this circuit can be made based on a TIP42 that must be...
Timer Very Simple (MSB059)
A capacitor stores electrical charges. This component is formed by two metal parts called...