Telephone circuit
Simple version. Full version location at http://circuitsradio.com
View original of this circuit: http://circuitsradio.com/schematics/electrical-engineering/Telephone/index.html
(manual) Phone In-Use Light
1-line telephone status indicator (PDF)
4-line telephone status indicator (PDF)
Anglo 100 (Phone)
Assorted telephone circuits
Audio-Visual Extra Ringer for Phone
AUTOMATIC TELEPHONE ANSWERING MACHINE
BELL FF-650 (Radio Phone)
Caller ID Circuit
Caller ID decoder
Caller ID decoder part 1
Caller ID decoder part 2
Cellular Phone Helper. Activates a variety of devices when your cellular phone is in use.
Clue engaged telephone line
Cordless Phone Panasonic: KX-TC100, KX-TC155, KX-TC280, KX-TC408, KX-TC900, KX-TC1005, KX-T2316, KX-T2427, KX-T3610, KX-T3710, KX-T3730, KX-T3855, KX-T3908, KX-T3920, KX-T3967, KX-T3970, KX-T4026, KX-T4046, KX-T4410, KX-T4450, KX-T5100
Cordless Phone Sanyo: 29, 35, 55, 330
Cordless phone schematics PANASONIC KX-9520-B
Cordless phone schematics PANASONIC KX-A69X
Cordless phone schematics PANASONIC KX-T3000
Cordless phone schematics PANASONIC KX-T3610
Cordless phone schematics PANASONIC KX-T3710
Cordless phone schematics PANASONIC KX-T3710-1
Cordless phone schematics PANASONIC KX-T3720-1
Cordless phone schematics PANASONIC KX-T3730-1
Cordless phone schematics PANASONIC KX-T3855
Cordless phone schematics PANASONIC KX-T3905-B
Cordless phone schematics PANASONIC KX-T3910-R
Cordless phone schematics PANASONIC KX-T3920
Cordless phone schematics PANASONIC KX-T3967-B
Cordless phone schematics PANASONIC KX-T4000
Cordless phone schematics PANASONIC KX-T4025-AL
Cordless phone schematics PANASONIC KX-T4026-AL
Cordless phone schematics PANASONIC KX-T4300
Cordless phone schematics PANASONIC KX-T4316-AL
Cordless phone schematics PANASONIC KX-T4340
Cordless phone schematics PANASONIC KX-T4350
Cordless phone schematics PANASONIC KX-T4400
Cordless phone schematics PANASONIC KX-T4410
Cordless phone schematics PANASONIC KX-T4550-B
Cordless phone schematics PANASONIC KX-T4600
Cordless phone schematics PANASONIC KX-T7900-BX
Cordless phone schematics PANASONIC KX-T9080-BX
Cordless phone schematics PANASONIC KX-T9150-G
Cordless phone schematics PANASONIC KX-T9180-BX
Cordless phone schematics PANASONIC KX-T9200-BS
Cordless phone schematics PANASONIC KX-T9220
Cordless phone schematics PANASONIC KX-T9250-G
Cordless phone schematics PANASONIC KX-T9280-BX
Cordless phone schematics PANASONIC KX-T9280-LA
Cordless phone schematics PANASONIC KX-T9300-G
Cordless phone schematics PANASONIC KX-T9320-G
Cordless phone schematics PANASONIC KX-T9410-G
Cordless phone schematics PANASONIC KX-T9500
Cordless phone schematics PANASONIC KX-TC1005
Cordless phone schematics PANASONIC KX-TC1025-RUB
Cordless phone schematics PANASONIC KX-TC1045-RUB
Cordless phone schematics PANASONIC KX-TC1400
Cordless phone schematics PANASONIC KX-TC1450
Cordless phone schematics PANASONIC KX-TC1700
Cordless phone schematics PANASONIC KX-TC409-BX
Cordless phone schematics PANASONIC KX-TC418-RU
Cordless phone schematics PANASONIC KX-TC419-BX
Cordless phone schematics PANASONIC KX-TC900-B
Cordless phone schematics PANASONIC KX-TC908-BX
Cordless phone schematics PANASONIC KX-TC910-B
Cordless phone schematics PANASONIC KX-TC928-BX
Cordless phone schematics PANASONIC KX-TC935-B
Cordless phone schematics PANASONIC KX-TC976-BXB
Cordless phone schematics PANASONIC KX-TC993-B
Cordless phone schematics PANASONIC KX-TCD951-GB
Cordless phone schematics PANASONIC KX-TCD951-RUB
Cordless phone schematics PANASONIC KX-TCD951-RUB
Cordless phone schematics PANASONIC KX-TCD955-GC
Cordless phone schematics PANASONIC KX-TCM940-B
Cordless phone schematics PANASONICKX-T7980-BX
Cordless phone schematics SONY SPP-111
Cordless phone schematics SONY SPP-114
Cordless phone schematics SONY SPP-121
Cordless phone schematics SONY SPP-123
Cordless phone schematics SONY SPP-124
Cordless phone schematics SONY SPP-68
Cordless phone schematics SONY SPP-801
Cordless phone schematics SONY SPP-811
Cordless phone schematics SONY SPP-851
Cordless phone schematics SONY SPP-861
Cordless phone schematics SONY SPP-874
Cordless phone schematics SONY SPP-884
Cordless phone schematics SONY SPP-888
Cordless phone schematics SONY SPP-901
Cordless phone schematics SONY SPP-904
Cordless phone schematics SONY SPP-98
Cordless phone schematics SONY SPP-A941
Cordless phone schematics SONY SPP-A968
Cordless phone schematics SONY SPP-A973
Cordless phone schematics SONY SPP-A974
Cordless phone schematics SONY SPP-A975
Cordless phone schematics SONY SPP-A976
Cordless phone schematics SONY SPP-ID910
Cordless phone schematics SONY SPP-ID970
Cordless phone schematics SONY SPP-ID971
Cordless phone schematics SONY SPP-S9000
Cordless phone schematics SONY SPP-S9001
Cordless phone schematics SONY SPP-S9003
Cordless phone schematics SONY SPP-S9101
Cordless phone schematics SONY SPP-SS955
Cordless phone schematics SONY SPP-SS964
Cordless phone schematics SONY SPP-SS965
Cordless phone schematics SONY SPP-SS966
Cordless Phone Sony: 3810, 6110, SPP-58, SPP-90, SPP-111
Cordless phone. Schematics and manual Panasonic KX-T7980BX
Cordless phone. Schematics Panasonic KX-T3967
Cordless phone. OSAWA
Cordless phone. Panasonic KX-T3970
Cordless phone. Panasonic KX-T4410
Cordless phone. Panasonic KX-T4550
Cordless phone. Panasonic KX-T9080BXH
Cordless phone. Panasonic KX-TC280
Cordless phone. Panasonic KX-TC408
Cordless phone. Panasonic KX-TC900
Cordless phone. Sanyo CLT-55
Cordless phone. Schematics and manual Panasonic KX-T9500
Cut Phone Line Detector
Cut phone line detector
Cut Phone Line Detector
DECT phone schematics Samsung SP-R1500
Detecting a telephone RING
Detecting a telephone RING
Digisound ring modulator
Digital/Standard Phone Line Tester
Digital/Standard Phone Line Tester
DTMF decoder / logger
DTMF Generator/Decoder
EXTENSION PHONE SWITCHER
FM Telephone Bug
FM telephone bug
FM Telephone Bug
FM Telephone Bug
Funai_SCT1000 Cordless Phone
Galax UP-722TP (Phone)
Greek telecard reader
HANDY TELEPHONE RECEIVER
Hitachi HD49423AN (Radio Phone)
Hold function for Telephone
Hold function for Telephone
Home made PBX / PABX
Incoming call indicator
Infinity Transmitter Schematic and Plans
Interface cables for various cell phones
LG_GT-9110A Cordless Phone
Line in use indicator (PDF)
Motorola MicroTAC shematic diagram (Cellular phone)
NCDS Interface Schematic for Nokia 3110, 8110, 8110i
Nokia 3810
OFF-LINE TELEPHONE TESTER
Osawa (Radio Phone)
OSAWA Cordless Phone
Panaphone KX-T 2316
Panaphone KX-T2316 (HT9215D, with indicator) Phone
Panasonic KX-F50 Fax
Panasonic KX-T1000 (Phone)
Panasonic KX-T1000 (Phone)
Panasonic KX-T2310 (Phone)
Panasonic KX-T2315 (Phone)
Panasonic KX-T2316 (HT9115D, T5876M) (Phone)
Panasonic KX-T2335 (Phone)
Panasonic KX-T2365 (Phone)
Panasonic KX-T2395 (Phone)
Panasonic KX-T2427 (Phone)
Panasonic KX-T3155 (Phone)
Panasonic KX-T3710 (Radio Phone)
Panasonic KX-T3730 (Radio Phone)
Panasonic KX-T3920 (Radio Phone)
Panasonic KX-T3967 (Radio Phone)
Panasonic KX-T3970 (Radio Phone)
Panasonic KX-T4026 (Radio Phone)
Panasonic KX-T4410 (Radio Phone)
Panasonic KX-T4550 (Radio Phone)
Panasonic KX-T5100 (Phone)
Panasonic KX-T7020 (Phone)
Panasonic KX-T7030 (Phone)
Panasonic KX-T7033 (Phone)
Panasonic KX-T7050 (Phone)
Panasonic KX-T7055 (Phone)
Panasonic KX-T7130 (Phone)
Panasonic KX-T9280 base (Radio Phone)
Panasonic KX-T9280 hand set (Radio Phone)
Panasonic KX-TC100 (Radio Phone)
Panasonic KX-TC280 (Radio Phone)
Panasonic KX-TC408 (Radio Phone)
Panasonic KX-TC900 (Radio Phone)
Panasonic_KX-T3000 Cordless Phone
Panasonic_KX-T3610 Cordless Phone
Panasonic_KX-T3710 Cordless Phone
Panasonic_KX-T3710-1 Cordless Phone
Panasonic_KX-T3720-1 Cordless Phone
Panasonic_KX-T3730-1 Cordless Phone
Panasonic_KX-T3855 Cordless Phone
Panasonic_KX-T3860 Cordless Phone
Panasonic_KX-T3908 Cordless Phone
Panasonic_KX-T3910 Cordless Phone
Panasonic_KX-T3920 Cordless Phone
Panasonic_KX-T3967 Cordless Phone
Panasonic_KX-T3970 Cordless Phone
Panasonic_KX-T4000 Cordless Phone
Panasonic_KX-T4025 Cordless Phone
Panasonic_KX-T4026 Cordless Phone
Panasonic_KX-T4046 Cordless Phone
Panasonic_KX-T4300 Cordless Phone
Panasonic_KX-T4310 Cordless Phone
Panasonic_KX-T4316 Cordless Phone
Panasonic_KX-T4340 Cordless Phone
Panasonic_KX-T4350 Cordless Phone
Panasonic_KX-T4360 Cordless Phone
Panasonic_KX-T4400 Cordless Phone
Panasonic_KX-T4410 Cordless Phone
Panasonic_KX-T4550 Cordless Phone
Panasonic_KX-T4600 Cordless Phone
Panasonic_KX-T7880 Cordless Phone
Panasonic_KX-T7900 Cordless Phone
Panasonic_KX-T7980 Cordless Phone
Panasonic_KX-T9080 Cordless Phone
Panasonic_KX-T9150 Cordless Phone
Panasonic_KX-T9180bx Cordless Phone
Panasonic_KX-T9200bs Cordless Phone
Panasonic_KX-T9220 Cordless Phone
Panasonic_KX-T9250g Cordless Phone
Panasonic_KX-T9280bx Cordless Phone
Panasonic_KX-T9300g Cordless Phone
Panasonic_KX-T9320 Cordless Phone
Panasonic_KX-T9350bx Cordless Phone
Panasonic_KX-T9380bx Cordless Phone
Panasonic_KX-T9410g Cordless Phone
Panasonic_KX-T9500 Cordless Phone
Panasonic_KX-T9520b Cordless Phone
Panasonic_KX-T9550-b Cordless Phone
Panasonic_KX-TC100 Cordless Phone
Panasonic_KX-TC1005 Cordless Phone
Panasonic_KX-TC100w Cordless Phone
Panasonic_KX-TC1025 Cordless Phone
Panasonic_KX-TC1045rub Cordless Phone
Panasonic_KX-TC109w Cordless Phone
Panasonic_KX-TC1400 Cordless Phone
Panasonic_KX-TC1450 Cordless Phone
Panasonic_KX-TC150w Cordless Phone
Panasonic_KX-TC1700 Cordless Phone
Panasonic_KX-TC180-b Cordless Phone
Panasonic_KX-TC328bx-b Cordless Phone
Panasonic_KX-TC409bx Cordless Phone
Panasonic_KX-TC418ru-b Cordless Phone
Panasonic_KX-TC419bx Cordless Phone
Panasonic_KX-TC900b Cordless Phone
Panasonic_KX-TC908bx Cordless Phone
Panasonic_KX-TC910b Cordless Phone
Panasonic_KX-TC928bx Cordless Phone
Panasonic_KX-TC935b Cordless Phone
Panasonic_KX-TC952eb Cordless Phone
Panasonic_KX-TC993b Cordless Phone
Panasonic_KX-TCD951 Cordless Phone
Panasonic_KX-TCD951rub Cordless Phone
Panasonic_KX-TCD961rub Cordless Phone
Panasonic_KX-TCM940b Cordless Phone
Panasonic_KX-TG2500 Cordless Phone
Panasonic_KX-TG2570 Cordless Phone
PC Cable for Ericcson Phones (218/318/337/388) (Cellular phone)
Phone Hold With Music
Phone Busy Indicator
Phone Busy Indicator
Phone in-use
Phone in-use
Phone In-Use Light
Phone Indicator
Phone Line to Audio
Phone Line to Audio
Phone master gamma
Phone Off-Hook Indicator
Phone Off-Hook Indicator
Phone Panasonic EB-GD70
Phone ring circuit schematic
Phone schematic diagram Panasonic KX-4410
Phone schematic diagram Panasonic KX-T100
Phone schematic diagram Panasonic KX-T1000
Phone schematic diagram Panasonic KX-T2310
Phone schematic diagram Panasonic KX-T2335
Phone schematic diagram Panasonic KX-T2365
Phone schematic diagram Panasonic KX-T2395
Phone schematic diagram Panasonic KX-T2427
Phone schematic diagram Panasonic KX-T3155
Phone schematic diagram Panasonic KX-T3730
Phone schematic diagram Panasonic KX-T3920
Phone schematic diagram Panasonic KX-T3967
Phone schematic diagram Panasonic KX-T4026
Phone schematic diagram Panasonic KX-T5100
Phone schematic diagram Panasonic KX-T7020
Phone schematic diagram Panasonic KX-T7030
Phone schematic diagram Panasonic KX-T7033
Phone schematic diagram Panasonic KX-T7050
Phone schematic diagram Panasonic KX-T7055
Phone schematic diagram Panasonic KX-T7130
Phone schematic diagram Sony SPP-111
Phone schematics PANASONIC KX-T2260
Phone schematics PANASONIC KX-T2310
Phone schematics PANASONIC KX-T2315
Phone schematics PANASONIC KX-T2315-1
Phone schematics PANASONIC KX-T2335
Phone schematics PANASONIC KX-T2365-SU
Phone schematics PANASONIC KX-T2388-B
Phone schematics PANASONIC KX-T2395-1
Phone schematics PANASONIC KX-T2427
Phone schematics PANASONIC KX-T2470
Phone schematics PANASONIC KX-T2661-BX
Phone schematics PANASONIC KX-T2710
Phone schematics PANASONIC KX-T2740
Phone schematics PANASONIC KX-T3175
Phone schematics PANASONIC KX-T3185
Phone schematics PANASONIC KX-T3281-BX
Phone schematics PANASONIC KX-TMC97-B
Phone schematics PANASONIC KX-TS10-W
Phone schematics PANASONIC KX-TS15-W
Phone schematics PANASONIC KX-TS17-W
Phone schematics SONY IT-B1
Phone schematics SONY IT-B2
Phone schematics SONY IT-B9
Phone SONY CM-H777RC/H888RC
Phone SONY IT-B1
Phone SONY IT-B2
Phone SONY IT-B7
Phone SONY IT-B9
Phone SONY TAM-100
Phone to audio interface
Phone to audio interface (SSI202 input)
Phone-In-Use indicator
Phone-In-Use indicator
Phono Preamplifier. Simple circuitry for moving magnet cartridges
Power Supply Schematic Diagram Panasonic KX-F130BX
Ringer and Indicator for a Telephone Line
Ringing Phone Light Flasher
Ringing Phone Light Flasher
Ringing Phone Light Flasher
SAMSUNG 46/49MHz (CTO) Block Diagram (Radio Phone)
SAMSUNG CORDED Block Diagram (Phone)
SAMSUNG Narrow-band 900MHz Block Diagram (Radio Phone)
SAMSUNG Pager for FLEX Block Diagram
SAMSUNG Pager for POCSAG Block Diagram
SAMSUNG SF3000/SF3000T Fax
SAMSUNG Wide-band 900MHz Block Diagram (Radio Phone)
Samsung_SP-R920 Cordless Phone
Samsung_SPR5100D Cordless Phone
Samsung_SPR5150 Cordless Phone
Sanyo_CLA-1380 Cordless Phone
Sanyo_CLA-4550TW Cordless Phone
Service manuals Cellular phones GSM
Simple circuit to connect telephone equipment to audio mixer
Simple circuit to connect telephone equipment to audio mixer
Simple Phone Tap
Simple Phone Tap
Smart Phone Light
Soft Musical Telephone Ringer
SOFT MUSICAL TELEPHONE RINGER
Solar powered dock lamp flasher
Sony_SPP-111 Cordless Phone
Sony_SPP-114 Cordless Phone
Sony_SPP-121 Cordless Phone
Sony_SPP-58 Cordless Phone
Sony_SPP-68 Cordless Phone
Sony_SPP-77_97 Cordless Phone
Sony_SPP-801_811_851_861 Cordless Phone
Sony_SPP-874_884 Cordless Phone
Sony_SPP-888 Cordless Phone
Sony_SPP-901 Cordless Phone
Sony_SPP-904 Cordless Phone
Sony_SPP-98_99 Cordless Phone
Sony_SPP-A941 Cordless Phone
Sony_SPP-A968 Cordless Phone
Sony_SPP-A973_A974 Cordless Phone
Sony_SPP-ID970_ID971 Cordless Phone
Sony_SPP-ID975_ID976 Cordless Phone
Sony_SPP-Q123 Cordless Phone
Sony_SPP-S9000_9001 Cordless Phone
Sony_SPP-S9003 Cordless Phone
Sony_SPP-S9101 Cordless Phone
Sony_SPP-SS955 Cordless Phone
Sony_SPP-SS964 Cordless Phone
Sony_SPP-SS965 Cordless Phone
Sony_SPP-SS966 Cordless Phone
Talking phone dial monitor
Taxi phone automatic dialler
TEL 02/3SR (Phone)
Telephone Audio Interface
Telephone Audio Interface
Telephone autodialler
TELEPHONE CALL COUNTER
Telephone Hold Button
Telephone Hold Button
Telephone in use light
Telephone in use light
Telephone In-Use Indicator
Telephone In-Use LED Indicator
Telephone In-Use LED Indicator
Telephone In-Use Relay Circuit
Telephone In-Use Relay Circuit
Telephone line audio interfacing circuits
Telephone Line Monitor
Telephone Line Monitor
Telephone Line Monitor
Telephone Line Monitor (Plans)
Telephone line monitor. If you feel that somebody is tampering with your telephone line you might find this little circuit useful. It detects if there is another telephone connected to the line, if there is a short or an open line. (simple)
Telephone line simulator
Telephone Line Vigilant
Telephone music on hold box
Telephone Number Display
TELEPHONE OFF-HOOK INDICATOR. This circuit provides a steady logical high indication when the telephone is off its hook.
TELEPHONE OFF-HOOK TONE GENERATOR. This circuit generates the sound that many telephone companies use to attract the customers attention to their phone when they leave it off hook. It is also refered to, in telephony jargon, as ROH, for receiver off-hook.
Telephone privacy adapter
Telephone privacy adapter
Telephone privacy adapter
Telephone Recorder
Telephone Recorder
Telephone recording circuit
Telephone recording circuit
Telephone ring controlled relay
Telephone Ring Generator Using 60Hz Power Transformer
Telephone Ring Generator Using 60Hz Power Transformer
Telephone Ring Generator Using Switching Power Supply
Telephone Ring Generator Using Switching Power Supply
Telephone Ringer
Telephone ringing circuits
Telephone ringing circuits
Telephone ringing circuits
Universal telephone hold
UPS For Cordless Telephones
Use old phones as an intercom
Use old phones as an intercom
Voyager_CL1000XP Cordless Phone
Watch-Dog for Telephones
Wireless IR hphone transmitter
View original of this circuit: http://circuitsradio.com/schematics/electrical-engineering/Telephone/index.html