Posted on Tuesday, May 17, 2011 • Category: FM Radio / Receivers
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. Crystal Detector Radio Receiver Set Varactor Varicap Capacitor Diode Tuned FM Radio Receiver FM Radio with TDA7000 FM Radio Receiver using TDA7088 Small FM Receiver FM Radio Receiver Aircraft / Airplane Radio Receiver Small FM Radio TDA7000 FM Receiver / TV Tuner / Aircraft Receiver Single Chip FM Receiver TDA7012
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