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Electronic melody door bell

PRICE 5.30 BGN
1+ 5.30 BGN
3+ 4.86 BGN
5+ 4.49 BGN
10+ 4.18 BGN
 
Product Code:
435725
Manufacturer:
HOBBY KIT
Manuf. Code:
1034
Price for: pc
Stock 5pc
435725 - Electronic melody door bell
Your questions:
Device based on LM555 - 2 frequency generator.
The first tone when the button is push-on, the second- when released.
Power supply: 9V
Speaker: 4-8 ohm
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