Hobby Kit Assemblings and Modules

: (77) products
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Product code
Description
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Manufacturer code
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Microphone preamplifierImage of Microphone preamplifier

Microphone preamplifier


Transistor preamplifier with an electret microphone, connected at the input. Power supply:
Microphone preamplifier - pdf
60.16 KB
HOBBY KIT
1035
3
pc
1+ 3.90 BGN
3+ 3.54 BGN
5+ 3.24 BGN
10+ 2.98 BGN
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Ni-CD battery charger Image of Ni-CD battery charger

Ni-CD battery charger


Batteries charge current is fixed, about 1/10 of battery capacity /as example, NiCd battery with capacity 900 mAh should be charged for 14 hours with 90 mA/. Input voltage varies on the number of batteries charged /connected in
Ni-CD battery charger  - pdf
58.06 KB
HOBBY KIT
1050
4
pc
1+ 2.70 BGN
3+ 2.44 BGN
5+ 2.22 BGN
10+ 2.04 BGN
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