You might check with C. Crane or Vermont Country Store.
I’ve found the Vermont Country Store more expensive than Amazon, here’s the az link in case anyone is insterested.
https://www.amazon.com/s/?ie=UTF8&keywords=c+crane+radios&tag=googhydr-20&index=aps&hvadid=181869177315&hvpos=1t2&hvnetw=g&hvrand=11591940300216012387&hvpone=&hvptwo=&hvqmt=e&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032869&hvtargid=kwd-1980388342&ref=pd_sl_6m63r2i2sn_e_p19