Modification kit for RT-320 to convert to LSB working at the flick of a switch..  Mod involves drilling a hole in the front panel to accommodate a small toggle switch.  Some solder work is required within the radio as well.  Full  instructions are available on  www.clansman-radio.co.uk/mods.html and will be sent with mod kit on purchase.

There are various methods for modifying this radio to LSB.  Some of them involve more discrete switching by either utilising reed switches or by manipulating the Battery check switch.  In my opinion, this mod is easier to perform and although it does leave a switch on the front panel, it is easier to switch between LSB and USB when you have a visible marker!