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  1. V

    DIN5 F to miniDIN 6 converter

    Dears, Could you please guide me how to convert DIN 5 Female to miniDIN 6 male? (For computer keyboard purpose) Thanks, V
  2. V

    Microphone Amplifier

    Dears, I need to construct an amplifier for the Shure SM58 mic. The impedance is 150 ohms. Please help. Regards, V
  3. V

    Gain control

    Dears, I am making an op-amp driven audio-amplifier. For the input gain control, I used a pot. This actually cuts some of the frequencies of audio and creates a distortion. Please guide me how best I could make a gain control Regards, V
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    UPS & Inverter

    Dears, For house lighting purposes(assuming tubelights and Fans) which would be a good choice? 1. Sine-wave UPS 2. Square wave UPS And what is the difference between UPS & inverter? Regards, V
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    What is this IC used for?

    Dears, I saw an IC "SG3524N" (from TI), in a 20' back-up computer UPS system. The data sheet says it is a pwm IC. But, could it be used for generating AC out of DC? (Col1&2s) Regards, Vivekanand
  6. V

    DC to AC

    Dears, What is the usual technique employed in converting the DC to AC (50Hz); as in case of a simple voltage AC inverter. Vivekanand
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    5A regulated power supply

    Dears, I want to make a regulated power supply (9-25V @ 5A) Please let me know which IC should be used for this. (Like we how we use LM317 IC)
  8. V

    A project, help

    Hi all, Now I have a project. Let me tell like this : 1. There is a chip which emits a +5v signal (of very sort span) when one condition is satisfied. Like a blink. 2. I want to take that "one blink type signal" and switch on an LED. 3. If I use, NPN and give that signal to base, then the...
  9. V

    Not Gate

    Dears, Which transistor/s should be used (how?) for creating a "not-gate"? And what should be the arrangement in order to cut-off the circuit if there is a specific signal? (using not-gate) Vivek v
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