Source google image: http://www.astrosurf.com/d_bergeron/astronomie/Bibliotheque/Chauffe_oculaire/prise%20schema.jpg
Schema electrique couverture chauffante
Source google image: http://www.astrosurf.com/d_bergeron/astronomie/Bibliotheque/Chauffe_oculaire/prise%20schema.jpg