This tiny receiver is not much bigger than an AA cell. It is powered off two LR44 button cells, which are expensive and I assume wouldn't last terribly long. I'll be on the lookout for LR44's at the markets and $2 shops now that I've got this radio! As with all these sorts of radios, the headphone lead functions as the aerial. Supplied with this receiver were a pair of those awful "in-the-ear" type of miniature type earphones. Apart from the appalling sound quality, they are insensitive, unhygenic and dirty, fragile, and do not block out external sounds. So, I use the normal kind of headphones instead. The enclosure is all clipped together, and once I'd opened it, sure enough, a TDA7088T was visible. The audio amp appears to be one transistor; ie. single ended class A. I don't know what current it's drawing so I can't say whether it's consuming much more battery current than a class B amp would. In any case I would prefer AAA cells rather than the LR44's.

     FM Radio with TDA7000
     Single Chip Radio FM Receiver
     Radio Receiver Circuit
     Simple FM Radio Receiver
     FM Broadcast Receiver
     FM Radio Receiver
     Small FM Radio
     TDA7000 FM Receiver / TV Tuner / Aircraft Receiver
     Small FM Receiver
     FM Radio Receiver

Circuit-Zone.com © 2007-2025. All Rights Reserved.