fm radio

The critical part of the fm radio receiver is the first stage, TR1/VC1, where the wirings must be kept as short as possible. Coil L1 is formed by winding 8 turns of 1mm (20 swg) enamelled copper wire on a 6 mm diameter former, which is then removed. After that L1 should be stretched carefully...

CXA1019 FM RADIO Circuit CXA1019 is a one-chip FM/AM radio IC designed for radio-cassette tape recorders and headphone tape recorders, and CXA1019S has the following functions. CXA1019 Features Small number of peripheral components. Low current consumption (Vcc=3V) For FM: I0=5.3 mA (Typ.)...

Wenn Sie das Radio aufgebaut haben, es funktioniert aber nicht richtig, dann können Sie den Fehler mit einem Digitalvoltmeter einkreisen. Hier die wichtigsten Messpunkte. Der häufigste Fehler ist eine kalte Lötstelle. Hier eine Schnittzeichnung. Der eingelötete Draht ist zwar vom Lötzinn...

Mini fm radio Transmitter circuit using BF199 This small FM transmitter with a range of about 50 meters designed for hoby. With lots of mini-transmitters then you have a comprehensive, action-packed radio program. Due to the power supply via the USB port of a high frequency stability is...

88-108Mhz FM Radio Transmitter This is a fairly basic radio transmitter circuit that is produced by a Project Kits company, Quasar. There are 3 stages in this version. But can be modified easily to output around 4W instead 500mW! The main circuit diagram is here: Parts list: These...