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  1. GPG1

    Audio Signal Switch

    GPG, You are talking about charge injection between external pins of the IC No
  2. GPG1

    A VERY usefull circuit , but how...

    A mixing desk is not a power amp
  3. GPG1

    Lowpass for subwoofer -project

    Frequency response
  4. GPG1

    z86E04 documentation

    Google. Eg: http://www.zilog.com/products/partdetails.asp?id=Z86E04
  5. GPG1

    Audio Signal Switch

    Charge injection can be thought of as a very small capacitor connected between the control and the switch channel. As a result the pops are related to the rise time of the control signal which can be reduced.
  6. GPG1

    A VERY usefull circuit , but how...

    Why stop at 3? http://www.national.com/pf/LM/LM3915.html
  7. GPG1

    Mains duty cycle controller IC

    Cannot recollect the part No of the one you mention but this should do www.atmel.com/dyn/resources/prod_documents/doc4768.pdf
  8. GPG1

    BT151-500R

    Google BT151
  9. GPG1

    transistors

    2SC867, 400V, 1A, 23W. FT 8MHz 2SC867A ,520V,3A, 48W, FT 8MHZ 2SC2827, 500v, 6A 50W FT 20MHz 2SD326, 330V, 1A ,23W, FT 6.5.MHz
  10. GPG1

    Audio Signal Switch

    Google 74HC4051. 3 will get you 24 channels
  11. GPG1

    analog input frequency counter with binary output.

    How many digits/resolution? What type of output, BCD, LED, LCD?
  12. GPG1

    Need cross for diode 1SS82

    The diode is protecting the auto black level sense transistor. Any low current high speed diode rated at ~200V will do.
  13. GPG1

    Need cross for diode 1SS82

    What is this diode's function
  14. GPG1

    TV Signal Amplifier

    They will all work in this circuit. The layout is far more important
  15. GPG1

    Led display Digital Voltmeter question

    ICL7107 Power Supplies From the data sheet: The ICL7107 is designed to work from
  16. GPG1

    RF Houselight control

    Have you seen the one in our projects section? http://www.electronics-lab.com/projects/motor_light/037/index.html Does not look like it will take much modification to fit your needs. Spark tansmiters were more honest. You can do it with a cheap cordless doorbell
  17. GPG1

    74Series ttl IC

    Be sure to google 74LSxxx. Or HC etc.
  18. GPG1

    Boosting Regulator Current/ATX power supply

    This can reach 2.5A
  19. GPG1

    Boosting Regulator Current/ATX power supply

    Q2 will supply current to the regulator (until it smokes)
  20. GPG1

    70 volt regulator

    Yes
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