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  1. GPG

    TCRT5000 Reflective optical sensor with transistor output.

    Data sheet link?
  2. GPG

    what's the part number of the chip?

    Got more of the cct?
  3. GPG

    FeelTech signal Generator FY3200 software

    No prob and a reply is appeciated
  4. GPG

    FeelTech signal Generator FY3200 software

    http://shor.ch/software/FY3224S-arb_gen/FY3200S%20User%20Guide/Readme%20%28Important%29.txt
  5. GPG

    Randomizer help

    https://en.wikipedia.org/wiki/Hardware_random_number_generator
  6. GPG

    Optical encoder from ink printer, help understanding

    Yes.
  7. GPG

    Optical encoder from ink printer, help understanding

    The controller doesn't care about the pullup. You should connect the pullup to the micros supply
  8. GPG

    Newbie here need help with a type of switch

    Since the LEDs are on when the relay is energised the Leds can be connected across the relay coil eliminating the second contact. Assuming I have interpreted your instructions
  9. GPG

    PSU Repair- Transformer outputting wrong voltage. Help much appreciated =)

    You need to connect 2 terminals together and repeat your measurements. If you get ~ 0V between the unconnected terminals reverse the connections of one winding
  10. GPG

    LED Strips Display driven from 555 / 4017 counter

    http://www.ti.com/lit/ds/symlink/cd4017b.pdf
  11. GPG

    Need help with long distance circuit

    Yes In the case of morse code the pulses get spread out and loading coils compensate. https://en.wikipedia.org/wiki/Loading_coil
  12. GPG

    Working with high voltage pulses

    You will need high voltage resistors for the divider stage http://mro.massey.ac.nz/bitstream/handle/10179/1161/02whole.pdf?sequence=1
  13. GPG

    Crimp tool hell or just solder it?

    The roll crimps are good. And you can get insulating boots.
  14. GPG

    Free Energy / Energy Harvesters / Perpetual Motion

    l https://en.wikipedia.org/wiki/Raccoon_Mountain_Pumped-Storage_Plant http://thinkprogress.org/climate/2013/08/27/2524501/hydro-pumped-storage-climate-change/ A similar project has been proposed here. The south Island (where I live) is 100% hydro with power being exported to the North through a...
  15. GPG

    110V 220V Systems

    What model No? Does it use a wall wart? Anything written on it?
  16. GPG

    Negative Spike Voltage

    What kind of vehicle? Electric? So many questions, so little information.
  17. GPG

    transistor pairing? or not?

    Especially if it has low internal distortion (without feedback) http://www.aes.org/e-lib/browse.cfm?elib=3379 There are probably more articles.
  18. GPG

    Grid Tie Inverter MOSFET Replacement part IRFP25N50N

    No. http://solar.smps.us/grid-tie-inverter-schematic.html The link voltage is the voltage out of the first converter.
  19. GPG

    LM317 question.

    While I was composing, you posted. Lousy typist But I left OP with one to do:)
  20. GPG

    Don't Fence Me Out

    Years ago I used to qualify them. Now this is the prime https://am.gallagher.com/nz/getting-started/electric-fence-systems Battery ones don't deliver as much power as mains
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