Zdroje a stabilizátory se Zenerovou diodou

New channel Hospodka Jiří: title sample judged 'whole' (Czech university electronics lectures and worked examples on circuits, filters, amplifiers, and power supplies with near); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.