I was asked by a friend to take a look at an old 70-80s Iskra sst 2030 (ex Jugoslavian-slovenian company) radio. The radio seems to work fine but I can't understand which plug it uses for speakers. Any ideas?
To me, this looks very much like a "DIN Lautsprecherstecker":
Positive is the small hole, negative the wide slot.
Loudspeaker, if I ask google, is zvočnik in Slovenian – so the "ZV" label makes sense; you can switch between speaker pair 1 and 2.
LEVI means LEFT
DESNI means RIGHT
ZV1 is speaker one ZV2 is speaker two
S this radio has connections for two pairs of 4 ohm speakers. I guess LEFT ZV1 and RIGHT ZV1 are main speakers and ZV2 are additional (as option).
Each speaker connector is DIN speaker connector with two contacts. Wide contact is speaker minus, circular contact is speaker plus pole.
If you do not have male connectors check this: http://www.ebay.co.uk/itm/2-Pin-DIN-Hi-Fi-Speaker-Plug-Cable-Audio-Connector-PACK-of-2-Screw-Connections-/331395432695
You can easily stick speaker wires directly into female connectors as temporary solution.