I LOVE YOU [COB PROJECT]

3TP019

2B-I LOVE YOU OR HAPPY BIRTHDAY TO YOU [COB PROJECTS]

PROJECT SPECIALITIES

This project is an interesting and surprising project for the people who are deprived of knowlede in electronics. This project produe a I LOVE YOU sound or HAPPY BIRTHDAY TO YOU sound. This can be used as a door bell as well as in cars while reversing.

TECHNICAL DESCRIIPTION AND WORKING:-

This project has been developed and successfully tested OK in TV Engineer Technical Lab.

A chip ON board [COB] is the main component of the circuit. This type of COB does not carry any number. This is an IC of special type mounted on PCB with fixture compound. This can’t be deteched from PCB itself. The circuit works on 12 V DC.

This project produces sounds like I LOVE YOU and HAPPY BIRTHDAY TO YOU. The other components in the circuit are for biasing purpose only.

PRECAUTIONS WHILE ASSEMBLING THE PROJECT:-

  1. Do not apply two hot soldering iron on IC chip.

LIST OF COMPONENTS:

I LOVE YOU COB [ CHIP ON BOARD]

COB [I LOVE YOU] 1

D1- IN4001 1

D2 3.6V ZENER 1

TR1 BC148 1

TR2 BEL187 1

R1 IM OHMS 1

R2,R3 1K 2

SPEAKER 8 OHM 1

ON/OFF SWITCH 1

 

HAPPY BIRTHDAY TO YOU [CHIP ON BOARD]

HAPPY BIRTHDAY TO YOU [COB] 1

D1 IN4001 1

D2  3.6V ZENER 1

R1 IM OHM 1

R2,R4 1.5K 2

C1  47MFD/16V 1

TR1 BC148 1

TR2 BEL187 1

SPEAKER 1

ON/OFF SWITCH 1

 

 

3TP19A

GADGET PRODUCING SOUND LIKE “I LOVE YOU”

PROJECT SPECIALITIES

The project described here is quite surprising.  The project produces a  sound which attracts  the electronic people and astonishes the people deprived of electronic knowledge.  You can use this project as door bell or car reverse horn etc.

TECHNICAL DESCRIPTION AND WORKING

This project has been developed and tested O.K. in our TV Engineers Technical Lab.  The components and PCB used in the projects published in our books are available for sale at resonable price.

This project operates on 12V DC supply.  The main component of this project is a COB abbreviated for CHIP ON BOARD. The COB of this type  does not have any number.  This is a special type of IC mounted on the PCB and cannot be detached from the PCB.  The project given here produces sound like “I Love You” and “Happy Birth Day”.  The other components employed in the project are for biasing purposes only.

 

 

 

PROJECTS N KIT DIVISION

RULES AND REGULATION

  1. We have all PCB & Spares for projects in all kits. You should be mount all spares on PCB and will make projects yourself. We can also send all complete projects as your orders.

How to Order

  1. We will not accept order less than Rs. 20/-.
  2. You should be sent 50% advance as for your order. Balance amount we have received through VPP [Cheque + Postal Ordr not accepted, only M.O. Bank Draft accepted]
  3. Prices are net ex office taxes, packing, forwarding, postal charges, bank charges will be extra.
  4. In case of the returning of your packet we will deducts postal charges and other expenses from your advance. Supply of spares kits is depends on availability.  We should not cover any responsibility for damage or theft of any articles which we send from transport or P.O.
  5. Prices can be changed prior to any information. Projects prices will be based on new price-list.
  6. All transaction/dispute are subject to the jurisdiction of Delhi / New Delhi Court.

 

 

 

We will very glad to received your suggestion for faults & its rectification of our any projects published in books of TV Engineer Publication Lab immediately and get prizes of Rs. 200/- , 100/- , 50/- & more consolation prizes for your right suggestion.

 

 

Why you read TV Engineer Magzine ?

Our Specialities.

  1. TV Engineer monthly magzine proud of entered in 6th year of this modern electronics age. It is the first magzine of electronic world which have published regular without any obstruction with cooperation of our readers where as future of other megzine are indefinate.
  2. Any defects / defect rectifications of projects of our project circuit book, after checking, its all information will be published in next month edition of TV Engineer monthly magzine. whereas this type of information is not available in others.
  3. We will sent our new project books for winner whose project will be publised in TV Engineer monthly megzine.
  4. TV Engineer Publication has a well equiped laboratory with an advance PCB design Lab & Technical Team work. Which will give you more facilities.
  5. A large & broad net work of monthly magzine of TV Engineer Publication Lab is scattered in the hole country which give you new informations through our publication.

 

Help-Line

we have all the spares & kits for projects. For details, read new edition of the monthly megzine TV Engineer.

Tested O.K. Electronics Projects

 

Main Attractions

  1. Any modification in projects of our project circuit books, will be published immediately in next edition of the TV Engineer megzine. That facilities is not available with other publishers.
  2. We can arrange projects for the sale & exhibition. In our Lab there is new projects are develope always and every month, which will be published in next book series. The information of new projects / its price list are published in TV Engineer monthly megzine.

 

P-3

PROGRAMABLE MUSICAL TONE GENERTATOR

PROJECT SPECIALITIES

In this project Timer IC 555 , Four Bite  binary counter IC 4793 and 4 to 16 De-Multiplexer IC 74154 are used. The IC 555 is a most popular integrated circuit , which can used both in analoge and digital circuit. Its input / output are easily connected with any TTL or CMOS circuit. In this project it is functioning as a Mono-stable multivibrator. The Output information of IC 555 at Pin no. 3 is applied to the trigger pin of IC 7493. The supply is given for this IC at pin no 5 and its output pin 1, 9, 8 & 11 produce binary information, which are given to the input pin of IC 74154 sequential at pin no 23, 22, 21  & 20. The IC 74154 is a 4 to 16 Bite Binary Decoder or De-mutiplexer whose all the sixteen outputs are attached with 100K Presets which  conduct transistors, as per information, which are obtained from 4 bits binary counter IC 7493 . After conduction of transistor there is a resistance offered between no. 2 & 7 of IC555 which produces a Muscial tone from speaker.

PART LIST

  1. IC 74154 = 1

IC 7493 = 1

IC 555 = 1

  1. TRANSISTOR

BC 158 = 1

  1. CAPACITOR

100MFD/25V = 1

.0022 =1

.01 = 1

10MFD/25V = 1

  1. RESISTANCE

4.7K = 1

  1. PRESET

100K = 18

  1. SPEAKER = 1
  2. PCB

PRECAUTIONS WHILE ASSEMBLING THE PROJECT:-

*First of all check all the components as per circuit.

*Check primary and secondary winding of the step-down transformer before connecting it.

*Check polarity of diodes [anode and cathode]

*Check +ve & -ve terminal of L.E.D. while mounting on PCB.

*While mounting transistor, you should connect collector , base & emitter properly.

*Clean PCB after soldering, so that the component or print do not short.

*While mounting transistor, be sure that you have connected collector, base & emitter properly.

*Pay proper attention to the polerity of capacitor and diodes while assembling.

*Please use resistance of the exact value as given in the circuit.

*Check short circuit , while soldering.

*Check the polarity [ Anode & Cathode] of Diodes before fitting.

*Check Dry soldering & short circuit in the board after soldering.

  1. Use IC base for mounting of IC 555.
  2. Ensure that the transister BEL 187 connection [C,B &E]are proper and not altered.
  3. Pay attention to the wiring and loose connection in project while assembling.
  4. Keep LDR in such place so that the light of Head-light falls directly on LDR.

25 Check polarity of diode and capacitor while assembling.

26 & 28 Use IC base for mounting of the ICs otherwise IC may damage due to current leakage of solderinf iron.

  1. For better result you have to operate this project first of all at 9V DC supply.
  2. Check polarity of electrolytic condenser while assembling.

31.Check +ve & -ve terminal of L.E.D. while mounting on PCB.

  1. Check polarity of electrolytic capacitor while mounting on PCB otherwise reverse connection may damage it.
  2. Mount all component as per the circuit.
  3. Check Dry soldering and short circuit in the board after soldering.
  4. You should connect the “Q” connector along with metal rod between bottem and upper layer of the TANK.
  5. Check polarity of condenser mike while mounting.
  6. It is neccessory to used IC LM317 with heat sink.
  7. Check polarity of voltmeter and ameter while assembling.
  8. Keep LDR in such place so that the light falls directly on LDR.
  9. For better responce use long teleshopic aeriel and coil of best quality.
  10. You should connect “A” connector along with meatllic rod between bottem and upper layer of TANK.
  11. For 5 Volt supply use regulator IC 7805.
  12. Please use cermice filter of an exact value and take care while tuning of coils.
  13. For better responce of the project wiring of band switch should be proper.
  14. Check Reed switch properly before connecting it.

 

PROJECTS- N- KIT DIVISION

RULES AND REGULATION

  1. We have all PCB & Spares for projects in all kits. You should be mount all spares on PCB and will make projects yourself. We can also send all complete projects as your orders.

How to Order

  1. We will not accept order less than Rs. 20/-.
  2. You should be sent 50% advance as for your order. Balance amount we have received through VPP [Cheque + Postal Ordr not accepted, only M.O. Bank Draft accepted]
  3. Prices are net ex office taxes, packing, forwarding, postal charges, bank charges will be extra.
  4. In case of the returning of your packet we will deducts postal charges and other expenses from your advance. Supply of spares kits is depends on availability.  We should not cover any responsibility for damage or theft of any articles which we send from transport or P.O.
  5. Prices can be changed prior to any information. Projects prices will be based on new price-list.
  6. All transaction/dispute are subject to the jurisdiction of Delhi / New Delhi Court.

 

 

 

We will very glad to received your suggestion for faults & its rectification of our any projects published in books of TV Engineer Publication Lab immediately and get prizes of Rs. 200/- , 100/- , 50/- & more consolation prizes for your right suggestion.

 

 

Why you read TV Engineer Magzine ?

Our Specialities.

  1. TV Engineer monthly magzine proud of entered in 6th year of this modern electronics age. It is the first magzine of electronic world which have published regular without any obstruction with cooperation of our readers where as future of other megzine are indefinate.
  2. Any defects / defect rectifications of projects of our project circuit book, after checking, its all information will be published in next month edition of TV Engineer monthly magzine. whereas this type of information is not available in others.
  3. We will sent our new project books for winner whose project will be publised in TV Engineer monthly megzine.
  4. TV Engineer Publication has a well equiped laboratory with an advance PCB design Lab & Technical Team work. Which will give you more facilities.
  5. A large & broad net work of monthly magzine of TV Engineer Publication Lab is scattered in the hole country which give you new informations through our publication.

 

Help-Line

we have all the spares & kits for projects. For details, read new edition of the monthly magzine TV Engineer.

Tested O.K. Electronics Projects

 

Main Attractions

  1. Any modification in projects of our project circuit books, will be published immediately in next edition of the TV Engineer magzine. That facilities is not available with other publishers.
  2. We can arrange projects for the sale & exhibition. In our Lab there is new projects are develope always and every month, which will be published in next book series. The information of new projects / its price list are published in TV Engineer monthly maqgzine.

 

 

1 2 3 4 5 6 7 8 9 10 11 12  13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

 

1 2 3 4 5 6 7 8 9 10 11 12  13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

 

1 2 3 4 5 6 7 8 9 10 11 12  13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

 

1 2 3 4 5 6 7 8 9 10 11 12  13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

 

 

Reader should be  order for project as per its Code No., indicated at the first & last page of this Book.

Projects have to send as follows:-

If you want Project No-1 of Book Vol-3, than order as

3TP=1Pc

3 Indicates Vol No. of Book, wheres  of 01 Indicates Project No-1

 

My Satisfication

This Article is based on the ” Customer Responce Card” of “Tested OK Electronics Projects Book” which is send by the Readers/ Customers. We are highly obligzed to our Reader, because it Produce Higher & Higher Aims for other Readers.

 

SUBJECT INDEX  VOL. 3

[3TP01] CLAP SWITCH USING IC 1

[3TP02] CORDLESS CURRENT & VOLTAGE TESTOR 4

[3TP03] WATER LEVEL INDICATOR USING TRANSISTOR 7

[3TP04] OBJECT COUNTER USING CALCULATOR 10

[3TP05] LONG DURATION TRANSISTORIZED TIMER 13

[3TP06] SMALL MIKE AMPLIFIER 16

[3TP07] CHASER 19

[3TP08] AUTOMATIC ELECTRONIC CANDLE 20

[3TP09] INTERCOM [CORDLESS INTERCOM] 25

[3TP10] BI-COLOURED LED PENDULAM 29

[3TP11] FM BAND RADIO RECEIVER 32

[3TP12] VARRIABLE REGULATED POWER SUPPLY 35

[3TP13] CLAP OPERATED MUSICAL TIMER 38

[3TP14] ADJUSTABLE TIMER WITH ON/OFF 41

[3TP15] FORWARD REVERSE RUNNING LIGHT CHASER 44

[3TP16] HIGH SOUND 4-TUNE SIREN 47

[3TP17] BIRD CUM DING-DONG 50

[3TP18] 20W EMERGENCY TUBE LIGHT 53

[3TP19A] I LOVE YOU COB PROJECT 56

[3TP19B] HAPPY BIRTHBAY TO YOU COB PROJECT 56

 

SUBJECT INDEX  VOL. 4

[4TP01] WAKI-TAKI 1

[4TP02] REMOTE AUDIO LEVEL INDICATOR 4

[4TP03] ELECTRONIC DISC 7

[4TP04] DISPLAY BOARD 10

[4TP05] FRIDGE DEFROSTER 13

[4TP06] SUPER DELUXE TRANSMITTER 16

[4TP07] QUIZ TIMER 19

[4TP08] IN OUT INDICATOR WITH MUSICAL BELL 20

[4TP09] STOP WATCH 25

[4TP10] LETTER BOX INDICATOR 29

[4TP11] AUTOMATIC GARAGE LIGHT WITH MUSIC & AUTO OFF 32

[4TP12] BI-COLOURED L.E.D BLINKER 35

[4TP13] HAPPY BIRTHDAY THROUGH A PUFF OF AIR FROM MOUTH 38

[4TP14] UNDER AND OVER VOLTAGE CUT-OFF 41

[4TP15] WATER LEVEL INDICATOR [Using IC 4049] 44

[4TP16] TIMER WITH RESET 47

[4TP17] 12 TUNE MUSICAL BELL [English] 50

[4TP18] AMBULANCE SIREN 53

[4TP19A] HINDI FILM SONG [GHYAL]COB PROJECT 56

[4TP19B] CAR BREAK COB PROJECT 56

 

 

FROM PAGE 59 [CONTED…..]

[2TP11] COMBINATION LOCK 32

[2TP12] RUNNING LIGHT CHASER 5

[2TP13] NON FADING DISPLAY BOARD 38

[2TP14] CLAP OPERATED FAN SPEED CONTROLLER 41

[2TP15] TRAFFIC LIGHT CONTROLLER 44

[2TP16] DISC 47

[2TP17] INFRARED REMOTE CONTROLLER 50

[2TP18] INTERCOM [Using 810] 53

[2TP19A] [ARTI] SONG COB PROJECT 56

[2TP19B] [TRAIN] COB PROJECT 56

SUBJECT INDEX  VOL. 4

[4TP01] WAKI-TAKI 1

[4TP02] REMOTE AUDIO LEVEL INDICATOR 4

[4TP03] ELECTRONIC DISC 7

[4TP04] DISPLAY BOARD 10

[4TP05] FRIDGE DEFROSTER 13

[4TP06] SUPER DELUXE TRANSMITTER 16

[4TP07] QUIZ TIMER 19

[4TP08] IN OUT INDICATOR WITH MUSICAL BELL 20

[4TP09] STOP WATCH 25

[4TP10] LETTER BOX INDICATOR 29

[4TP11] AUTOMATIC GARAGE LIGHT WITH MUSIC & AUTO OFF 32

[4TP12] BI-COLOURED L.E.D BLINKER 35

[4TP13] HAPPY BIRTHDAY THROUGH A PUFF OF AIR FROM MOUTH 38

[4TP14] UNDER AND OVER VOLTAGE CUT-OFF 41

[4TP15] WATER LEVEL INDICATOR [Using IC 4049] 44

[4TP16] TIMER WITH RESET 47

[4TP17] 12 TUNE MUSICAL BELL [English] 50

[4TP18] AMBULANCE SIREN 53

[4TP19A] HINDI FILM SONG [GHYAL]COB PROJECT 56

[4TP19B] CAR BREAK COB PROJECT 56

 

 

 

FROM PAGE 59 [CONTD….]

[2TP11] COMBINATION LOCK 32

[2TP12] RUNNING LIGHT CHASER 5

[2TP13] NON FADING DISPLAY BOARD 38

[2TP14] CLAP OPERATED FAN SPEED CONTROLLER 41

[2TP15] TRAFFIC LIGHT CONTROLLER 44

[2TP16] DISC 47

[2TP17] INFRARED REMOTE CONTROLLER 50

[2TP18] INTERCOM [Using 810] 53

[2TP19A] [ARTI] SONG COB PROJECT 56

[2TP19B] [TRAIN] COB PROJECT 56

SUBJECT INDEX  VOL. 3

[3TP01] CLAP SWITCH USING IC 1

[3TP02] CORDLESS CURRENT & VOLTAGE TESTOR] 4

[3TP03] WATER LEVEL INDICATOR USING TRANSISTOR 7

[3TP04] OBJECT COUNTER USING CALCULATOR 10

[3TP05] LONG DURATION TRANSISTORIZED TIMER 13

[3TP06] SMALL MIKE AMPLIFIER 16

[3TP07] CHASER 19

[3TP08] AUTOMATIC ELECTRONIC CANDLE 20

[3TP09] INTERCOM [CORDLESS INTERCOM] 25

[3TP10] BI-COLOURED LED PENDULAM 29

[3TP11] FM BAND RADIO RECEIVER 32

[3TP12] VARRIABLE REGULATED POWER SUPPLY 35

[3TP13] CLAP OPERATED MUSICAL TIMER 38

[3TP14] ADJUSTABLE TIMER WITH ON/OFF 41

[3TP15] FORWARD REVERSE RUNNING LIGHT CHASER 44

[3TP16] HIGH SOUND 4-TUNE SIREN 47

[3TP17] BIRD CUM DING DONG 50

[3TP18] 20W EMERGENCY TUBE LIGHT 53

[3TP19A] I LOVE YOU COB PROJECT 56

[3TP19B] HAPPY BIRTHBAY TO YOU COB PROJECT 56

 

 

 

 

FROM THE EDITORS

We are now dedicating our valuable publication TESTED O.K ELECTRONICS PROJECTS VOL. 3 to the readers after the successful launching of TESTED O.K ELECTRONICS PROJECTS VOL. 1 & 2. The continuation of the series depends on the hearty co-operation and wishes of our readers. Monthly magzine TV ENGINEER of our publication on the subject of electronics, has occupied an important place in the country among the publications of its kind. The “Superhit OK Electronics Projects” published in this magazine has becomes extremely popular. Keeping these points in mind we have set up an Electronic lab. named TV Engineer Publication lab. {INDIA}. The projects published in this volume are the efforts of our engineers engaged in the lab. The projects are developed and Tested in the lab. first before being published. We are thankful to Master Vinit Sharma for has untired efforts in testing of the projects.

We are also working on the other projects to be published in the other volumes of this series. The projects kits are ready for demonstration in our lab. and  components required for projects are available for sale at a reasonable price also. The updated price list of these projects are published in our monthly magazine “TV Engineer” from time to time. We heartly invite comments and suggestions of our readers for modifications and improvements of our projects.

Mrs Alka Gupta

&

Associate Engineers

 

1995 All right reserved with the publisher.

First Edition – August 1995

Price = Rs. 28/- [Rupees Twenty Eight only]

Published by Mrs. Alka Gupta for TV Engineer Publication, A-10 C.C.Colony, R.P. Bagh, Delhi -110 007 and printed at M/s Harish Book Binding House, Azadpur, Delhi – 110 033.

Please note:-  While Printing, every effort has been made to give complete and accurate circuit which are complete in every respect. However neither the author nor the M/S TV Engineer bears no responsibiliity for its use.You have to apply licence for wireless type project from Govt.

 

FROM THE EDITORS

We are now dedicating our valuable publication TESTED O.K ELECTRONICS PROJECTS VOL. 4 to the readers after the successful launching of TESTED O.K ELECTRONICS PROJECTS VOL. 1 ,2 & 3. The continuation of the series depends on the hearty co-operation and wishes of our readers. Monthly magzine TV ENGINEER of our publication on the subject of electronics,

has occupied an important place in the country among the publications of its kind. The “Superhit OK Electronics Projects” published in this magazine has becomes extremely popular. Keeping these points in mind we have set up an Electronic lab. named TV Engineer Publication lab. {INDIA}. The projects published in this volume are the efforts of our engineers engaged in the lab. The projects are developed and Tested in the lab. first before being published. We are thankful to Master Vinit Sharma for has untired efforts in testing of the projects.

We are also working on the other projects to be published in the other volumes of this series. The projects kits are ready for demonstration in our lab. and  components required for projects are available for sale at a reasonable price also. The updated price list of these projects are published in our monthly magazine “TV Engineer” from time to time. We heartly invite comments and suggestions of our readers for modifications and improvements of our projects.

Mrs Alka Gupta

&

Associate Engineers

 

1995 All right reserved with the publisher.

First Edition – August 1995

Price = Rs. 28/- [Rupees Twenty Eight only]

Published by Mrs. Alka Gupta for TV Engineer Publication, A-10 C.C.Colony, R.P. Bagh, Delhi -110 007 and printed at M/s Harish Book Binding House, Azadpur, Delhi – 110 033.

Please note:-  While Printing, every effort has been made to give complete and accurate circuit which are complete in every respect. However neither the author nor the M/S TV Engineer bears no responsibility for its use.You have to apply licence for wireless type project from Govt.