UM66 is Music Calling Bell manufactured by Unknown Manufacturer.
| Manufacturer | Part Number | Description |
|---|---|---|
Universal Microelectronic |
UM6600 | 7.5 - 15Watt DC-DC Converter |
Microsemi |
UM6600 | POWER PIN DIODES |
|
Microsemi |
UM6601 | POWER PIN DIODES |
|
Universal Microelectronic |
UM66012VD | 7.5 - 15Watt DC-DC Converter |
|
Universal Microelectronic |
UM66012VS | 7.5 - 15Watt DC-DC Converter |
(IC and Transistor) Precaution Modification for adaptation This is the simplest ever musical calling bell that can be easily built. It uses the musical 3 pin IC UM66 and a popularly known Transistor BC548b. The circuit can be made even without soldering and the ideal for the first electronic project for newbies.
