SNN.GR

Smart kit

1. Smart Kit

1. Alarms - Sirens
2. Amplifier
3. Automation
4. Cars And Bikes
5. Computer Application
6. Converters - Chargers
7. Dimmers
8. Instruments
9. Light Modulators
10. Linears - Encoders
11. Music
12. Power Supplies
13. Preamplifiers Mixers
14. Receivers
15. Sound
16. Sound Effects
17. Telephone
18. Timers Counters
19. Transmitters
20. Various
21. Vu - Meters

--- Παρόμοια ΚΙΤ ...
1059 TELEPHONE AMPLIFIER
1078 PROTECTION FROM MALICIOUS CALLS
1119 TELEPHONE LINE RECORDING
1122 TELEPHONE CALL RELAY
1125 PULSE TELEPHONE LOCK
1130 TELEPHONE "BUG" DETECTOR
1155 TELEPHONE SCRABLER
1167 TELEPHONE LINES PRIORITY SWITCH
1185 TELEPHONE IN USE INDICATION
1186 8 CH REMOTE CONTROL BY TELEPHONE

1182

MUSICAL HOLD ON

SCHEMATIC

A very smart circuit for having music in the telephone, when you put the caller in “hold”. It is a useful alternative solution for telephone sets that don’t have this option.The construction is based on an IC that generates a known melody. It also gives you the ability to record your own melody from a tape player or CD. There is no need for power supply as it is connected in parallel with the phone line. PCB 57x72mm . ..