You can use a “buck converter” to drop that voltage down, but they’re terribly inefficient. Depending on the converters ratings you may end up having enough amperage to power a stock CB, but not much else. They’re also notorious for not having a very clean output. The second alternative and far better IMO is to see how difficult it would be to remove some turns off the secondary. I’d remove one turn at a time until the voltage dropped around 18 volts. Once achieved, you can apply that lower voltage to any one of the numerous analog power supply circuit designs.
Sorry, I intended to pass along this info in the first place until I got side tracked with some other comments that were being made. I’ll try to remind myself in the future to stay focused on the primary topic. If anyone wants to chastise my part in this discussion, that’s fine too. My main objective is to be continually supportive to the hobby and to answer questions to the best of my ability. Funny, I haven't been called a "punk" since I was a teenager, wish I was that young again... Enough said, I’ll refrain from making further comments in this regard.