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
1130 TELEPHONE "BUG" DETECTOR
1155 TELEPHONE SCRABLER
1167 TELEPHONE LINES PRIORITY SWITCH
1182 MUSICAL HOLD ON
1185 TELEPHONE IN USE INDICATION
1186 8 CH REMOTE CONTROL BY TELEPHONE
. ..

1125

PULSE TELEPHONE LOCK

SCHEMATIC

A project that will help you control the use of your telephone and keep your telephone bill low. It can be connected on the telephone line and disable the dialling beyond the 8th digit.Thus it is impossible for anyone to make a long distance call unless you allow it. It can also disable dialling from the 5th digit so it is impossible to make anything but operator calls. It draws its power from the telephone line. Very useful for public telephones, in businesses, shops etc. SUITABLE BOX 2125. PCB 50x57mm