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Davewantsone · 11th Dec 2018, 10:00 pm

The HX 108 out of interest only uses a supply of 1.3V (2 slicon diodes via a resistor to drop the 3V supply) for the RF and IF stages. It is only the driver and output transistors that get the 3V. I removed a 1.5V cell and shorted the connections so the radio only got 1.5V. To my surprise it worked quite well with a good amount of volume!
Out of interest I pad the radio with the circuit diagram sheet!

11th Dec 2018, 10:00 pm	#15
Davewantsone Hexode Join Date: Dec 2011 Location: Wigan, Greater Manchester, UK. Posts: 291	Re: More Chinese AM radio kits The HX 108 out of interest only uses a supply of 1.3V (2 slicon diodes via a resistor to drop the 3V supply) for the RF and IF stages. It is only the driver and output transistors that get the 3V. I removed a 1.5V cell and shorted the connections so the radio only got 1.5V. To my surprise it worked quite well with a good amount of volume! Out of interest I pad the radio with the circuit diagram sheet! Last edited by Davewantsone; 11th Dec 2018 at 10:07 pm.