OCR Text |
Show RADIO PRIMER. Lightning Switch A switch connection con-nection in the antenna circuit to prevent pre-vent danger of destruction fnyhi lignt- nlng. Wten the radio I ra'aratus is not In 'ise or a storm vs threatens, the w p, switch la connect- Wfjll PS BO" so that ther- Is TP Q EB , .llrct circuit I from the aerial to i he ground and t he U I circuit to the instruments in-struments In the I 1 Be Is open. i Thus, when the lightning strikes the aerial it Is brought directly Into I the ground and no harm is done. J |