Player module for HK66T Melody Chips (not included).
The HK66T series melody chips require an external transistor to drive a speaker, which was this little kit developed for. Typical applications are door bells, alarm clocks or greeting cards.
Click the link to order a the sound chip for the module:
HK66T-08 "Happy Birthday"
HK66T-11 "Love Me Tender"
HK66T-19 "Für Elise"
HK66T-OA "Jingle Bells"
Operating voltage: 3.0 - 4.5 V
Operating current: <5mA
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