I sent an email question to a reputable CB Sales and Repair shop asking what needs to be done to correct the drifting on Galaxy radios. Their reply was; "buy a Stryker or Anytone".
The Galaxy radios were 85% built for the AM market, more specifically over the road drivers.
The Big Rigs series of radios is a good example.
I bought one of the first 6900f25 radios by ranger (they build Galaxy) and after a year of use the claifier was worn out, literally.
Twisting it around to get the zeros and following others because of the drift actually wore the carbon track out on the control running it mobile because of temperature changes.
People have tried, Robb for one had several threads trying to stabilize them as well as others.
Better spec parts, crystal heaters....
When the CPU controled radios started showing up (2950/70) it was much better, but these radios didn't appeal as much to over the road drivers that wanted to just switch the channel selector and talk.
The very first 2510 I picked up was because a driver bought it and hated the underline cursor/step/frequency control, did not even use it for a day......
And regardless of the drifting, galaxy became the go to for the ' professional driver's' just not so much the SSB users .
The customer wants what they want, and if it's selling and making money, well.
When Bill Good was still alive, Mr Peng and some factory ' engineers ' visited him in So Cal, suggestions were made to improve these radios that fell on deaf ears because they didn't feel it was worth the effort.
73
Jeff