If you are using a Johnson external VFO (Model 122) - it will give you 160 meter frequencies without worrying about the oscillator too much.
I once made an SB-101 sort of work on 160 by coupling RF from a Meissner Signal Shifter (at 1.8 MHz) into the grids of the finals and stuffing some ferrite into the tank coil and adding some capacitance. I probably put out as much RF on 80 meters as I did on 160, but it was enough to work Kentucky (N4AR/K4GSU) from Southern California with a very low dipole. Tree N6TR On Wed, Oct 29, 2025 at 10:07 AM Lee Boulineau via Topband < [email protected]> wrote: > GM Jeff, > Maybe an easier exercise would be to convert one of the 60s to 160m only? > This might be especially useful if you are going with crystals only. > Initial thoughts are: > Add parallel capacitance to both C22 and C24. > Rewind L3. and L2 for 160. > L1 may or may not need to be altered. The oscillator circuit is a Pierce > circuit which usually behaves pretty well. L2 is likely the main tuning > element for the second amp/doubler circuit so only L2 may need to be > rewound. > You can bypass the bandswitch; that simplifies matters a lot. : > > > 73 de Lee KX4TT ZUT > > > > > On Wednesday, October 29, 2025 at 12:43:19 PM EDT, Radio KH6O < > [email protected]> wrote: > > I have a couple of Heath DX-60 transmitters. I'd like to convert one of > them to 160. This would involve re-doing the 80m section of the rig. > > Does anyone have a step-by-step article to do this? I did an internet > search but found nil. Maybe one of the magazines (QST, 73, CQ, HR) might > have run an article on this way back when. > > 73, > Jeff KH6O / 6 > > NNNN > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
