KA Datasheet PDF Download – TELEPHONE TONE RINGERS, KA data sheet. KA datasheet, KA circuit, KA data sheet: SAMSUNG – THE KA/KA IS A BIPOLAR INTEGRATED CIRCUIT DESIGNED FOR. KA from Samsung Semiconductor Division. Find the PDF Datasheet, Specifications and Distributor Information.

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Wing Shing Computer Components

Figure 2 PCB and the components layout. You datasheeet check the accuracy. Flashing light attached to it,with frequency of the ringging tone. Then come back to see the Loud Ringer circuit for the Home Phone.

Then try to connect the telephone lines, then call come in, will be have hear the ringing tone, if the sound is not impressive, you can change the RC with formula given above.

We do not need a new phone.

We hear the sound of the Oscillator 2 series, which differ by the output frequency chops to be a frequency generator circuits. It is easy to use and good quality, Do not enter the power supply.


The circuit uses power from the telephone line. Signal voltage is reduced down to approximately 10V. Which consists with R3, C3 is low. LED can be connected in series to increase, but less in proportion to the light. The detect ringing signal tone datasyeet with light and sound. This site uses Akismet to reduce spam. Which as Detect ringing signal tone circuit Or ring tones on the telephone line, a signal incoming calls.

This Telephone bell ringer circuit for generating the electricity bell datasheeet the old telephone.


How to builds You can builds this projects with make the PCB before and then puting All components in this circuit as Figure 2 except of the piezoelectric transducers can be assembled into a perforated board. Leave a Reply Cancel reply. The ringing datashet light, we may reduce the R5 for low down. This circuit is relatively loud. When IC1 is given the supply volt as I said, it will generator a ringing signals through the R5, to drive the Piezoelectric transducer BZ1 be a bell tone out to hear. Which is about 20 Hz.


The D1 detect a positive signal, and the 4 LED. By D2 to detect, only a negative signal,One extreme to the other end of the wire loop. Many electronics circuits and projects for learning in simple ways. Electronic bellsSmall electronic circuitsTelephone circuits. This circuit is easily to build, because it uses a single IC as shown in figure below.

Learn how your comment data is processed. Quote and Order boards in minutes on https: C3 For a maximum frequency is calculated from.