09-29-2021, 12:32 PM
(09-27-2021, 12:54 PM)KC9UDX Wrote: Non-sequitir. I was going to point this out the last time you posited this, but I didn't want to argue. Different shapes of "barrel connector" were not that many. Cases where companies use odd shapes to captively sell wall warts are rare or none. Producers either buy styles that were cheap and common, or are trying to prevent people from connecting devices of incorrect voltage. Even if they were profiteering, they weren't doing a very good job: Universal adapters for these connectors have been plentiful for 40 years. One could argue that they were using odd voltage for profiteering, but that is a different topic. Pine products all use the same, common size, shape, and voltage, as far as I know.
Sorry to come back on this topic, but I just received a PineTab and that one has a tiny barrel port, definitely not the same as the Pinebook Pro.
And I don't know what qualifies as "not that many" in your book, but you can find plenty different sizes.
https://en.wikipedia.org/wiki/Coaxial_power_connector