In reply to G3CWI:
Hi Richard, glad to hear the RockMite performed well. I built a RockMite 20 a couple of years ago. I haven’t had a contact with it yet. A self spot might be a good idea
I was thinking of ordering another RockMite for a different band, but I went to the Rishworth Convention and came home with a QRPme Super Tuna with crystals for 40m and 30m! http://www.qrpme.com/?p=product&id=Spt
I’m not sure I’d be brave enough, but there is space for a trimmer cap to be able to turn the crystal oscillator into a VXO. The rig could then be put bang on 7.032 MHz using a 7.030MHz crystal. I’ve opened of real can of worms (tuna?) with this project as it’s only a transmitter, so I need to source (build) a suitable receiver and work out a switch over system. There is also need for a sidetone (could be combined with a keyer). I determined to operate the rig at least once from a summit!
Another thought of mine was to modify a RockMite to run on 17m. A RockMite relative, the HiMite worked on this band and was quite similar, so it would be a good starting point for values of the inductors etc.
Good luck with your 18MHz endeavours!
(If only someone would buy me a Hendricks BitX17 kit for Christmas!)