Pentod

Pentod (az yun. rente —panj va elektrod), lampai elektronii panjelektrodaro guyand, ki az katod, turhoi idorakunanda, mahdudkunanda va antidinatroni (pentodi, himoyavi) va anod iborat ast. Pentodhoi kamistn- dor (yakchand Vt) asosan chun lampa* \oi kabulu tadviyat va P.-khop pu- ri^tidor (yakchand dazdo Vt va besh- tar az on) chuya lampadoy generatora ist ifoda meshavand. P. dar natshai takomuli tetrod ba vuchud sum ad. Bo yorin P. lappishkhoi elektrik basoma- dashop to dakhkho MGs khosil va ae chikhati shiddatu istidor pursuvvat (to sadkho marotiba) karda meshavand.