mine broke as well. I got a new one at the local radio store.
I think it's the same size as the ones on boss pedals, so
some of the music shop might have them as well. 2.1 mm power jack.

hope this helped
cheers
Arni Geir

--- In tr-707@yahoogroups.com , "Atchman" <hughclyne@...> wrote:
>
> Hi
>
> Does anyone know where I might get a new DC input socket to solder into my TR 707 Mine is broken.
>
> Thanks in advance
>