I have a Texas Ranger TR 696F SSB that’s just driving me crazy. Someone has done countless mods to this unit (e.g. dimmer and channel 9 switches change frequency bands and SWR cal control changes AM RF power). I can’t find a schematic for the unit but it closely resembles a Galaxy DX2547 except it uses a TDA6130 TX mixer rather than the S042. AM produces a strong 7-8 Watts albeit you have to play with the mic gain to keep the modulation and RF envelop from distortion. But in SSB it’s…

Read more