parts of electronica

Yes. I think the biggest, or at least most known Electronics parts store in San Cristobal is called electronica Loyola. It on the Gral. Leger Street near the Central park. you can ask to anyone of the motoconchos there in San cristobal for it. And i think that if they dont have the part you're looking for they can get it for you.
Or if you preffer Santo Domingo its only 20 km away and you can get everything on electronics on 30 de Marzo street (near parque independencia)