The InfoAge museum in New Jersey seems to not be well known, but they have lots of interesting computer and radio artifacts, including some hands-on demonstrations. The museum is on the site of an old Marconi shore station.

https://www.infoage.org/exhibits/

Which reminds me, another shore station is KPH in Point Reyes which is worth a visit for sure.

https://www.nps.gov/pore/planyourvisit/kph_treetunnel.htm