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This is a classic 'Ding-Dong' door chime sound generator kit with a low standby current.
We supply extra capacitors in the kit so that you can experiment with the 'Ding' and 'Dong' duration's. Oscillator frequency is set at 64kHz by a 510K resistor but you can change this to give the tone of your choice.
The kit includes a COB sound module, a motherboard for the supporting components, a 3" (75mm) diameter speaker, push switches, components and battery holder. Switch wire is not included (simple 2-core bell wire is fine).
N.B. This kit requires a reasonable level of soldering skill and it not recommended for beginners.
You can also purchase just the COB sound modules only without the additional components supplied in the kit.Specifications
|Supply||3V dc. 2 x AA battery holder supplied (battery Order Code 656.010)|
|Board Dimensions||~ 33 x 23 x 15mm|
|Board Connections||Solder pads|
|Product Format||Electronic Kit (KT) Product Formats Info|