Tagged Questions

2
votes
1answer
214 views

Audio amplifier kills FM radios signal [closed]

I have a Lepai LP-2020A+ audio amplifier and a König FM Pocket Radio. My problem is that the pocket radio works really well on its own, with the headphone plugged in, but when I connect the radio to ...
4
votes
3answers
389 views

Can someone explain this tube amplifier circuit for me?

I have a tube radio that has really low output (I mean the sound is barely audible at full volume). Probably some capacitor in the LF amp failed. However, after I downloaded the schematic diagram, I ...
7
votes
8answers
593 views

Does a radio station main amplifier work at the speed of light?

I'm having an argument with a classmate and we can't agree. He tells me that it's not possible for the amplifier of a radio station to amplify the input signal "instantaneously" (at the speed of ...