Pocket Radio AM / FM circuit

Posted on Oct 15, 2012

Earphones, batteries are sold separately. AM / FM seems to be a common mold. But stamping is different. AM / FM E193577 UL94V0 board with the AM / FM etching printed circuit board manufacturers are the same. Shape is considered to be shared. (Design, sharing the production process design?). Radio FM transistor S9014, IC LA1800 is used. 100 AM, FM Radio and 2W IC Amp substrate incorporated into the case. Variable capacitor is used for the junk FM · AM variable condenser 2. FM section, and turned the proximity variable capacitor, AM has a distance as a measure of the local oscillator wrap, leads unavoidably variable capacitor, Sorudatoru (desoldering wire), and with the shield. Radio low-frequency portion, FM ANT has converted part of the circuit. Radio is the height of perfection impressed.??

Pocket Radio AM / FM circuit
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Pocket Radio AM / FM circuit - image 1
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Model No. DD2000-A DD2001-F Receive Frequency 530kHz ~ 1605kHz 76MHz ~ 108MHz Output terminal M3.5 100? mono earphone M3.5 64? mono earphone Power Two AAA batteries batteries DC3V Battery duration 70 hours (using AAA manganese batteries) About 60 hours (using AAA manganese batteries) Maximum Dimensions About 57X91X24mm (width X height X depth) Mass Approximately 80g (battery included earphones) Approximately 65g (battery included earphones) Accessories Instruction Manual

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