I am not sure the Internet has already found out, but some Yaesu radios share the same DC plug size. In my case I discovered that I can power/recharge a VX-8E (VX-8R) handheld with the FT-817 DC cable. The polarity is also the same, with +/positive in the inner contact.
If I wanted to make a spare cable equivalent to Yaesu E-DC-6, the plug size is 4.0x1.7 mm and it is easily available from multiple sources.
I have also noticed that the universal laptop power supply I own, with exchangable heads and several output voltages, has a compatible plug. Althought it might not be an RF-friendly power source, it offers a way to recharge the radio battery. Make sure to set the voltage to 12V.
Edit. You know what? Looks like Yaesu loved that DC barrel size, and it was used also on VXA-210 and VXA-220 aeronautical handhelds. Just look for E-DC-6 and see it yourself how many devices.
Not only that, even the Albrecht AE 2990 10/11/12m all-mode handheld uses the 4.0x1.7 mm barrel connector! Or something very similar not documented, but this one works.
