We found the circuit of this Japanese transistorized commercial receiver in a documentation from the 1960s. It is a radio for the medium wave range with 6 transistors and 9 V power.
This circuit has a 60 dB gain and a bandwidth of 68 MHz. We find it in Maxim's documentation. ...
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...
This circuit uses an SCR as an active component, working only at short distances. The circuit was...