|
Hi! You may use a power supply, but it is best to get this radio working using
batteries first, especially for the A (1.5 V) filament battery. Also, note that
the two power supplies must have independent grounds, as there is likely to
be a resistor in series with the negative leg of the B battery. This is to provide
negative grid bias to the ouput tube. If you have not yet heard such a radio
in operation, you will be amazed by the instant-on operation of these battery
tubes. Good luck!
|