.7mm x 2.35mm DC POWER PLUG, EIAJI EIAJ1 Class, Mates with 335B, 205B, 261B
PLUG 2.5 D.C. JACK 3.5
COAXIAL POWER PLUG ADAPTOR
All adaptors in this series have a
3.5mm, 2 conductor jack. Permits you
to use an AC adaptor (i.e. power supply)
with other types of electronic
equipment.