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  1. ci139 replied to the thread Absolute Circuit with op-amp OP07CP.

    It depends on the reader's frustration - the internet is a public place (although it is at your home) - please try to distinguish the...

    Jul 23, 2017 at 7:36 AM
  2. alexb1406 replied to the thread LM2917 Tachometer for V12.

    Hi eT, I went back and tried it again, this time making sure I got it in the right order, but I could only get it to work erratically...

    Jul 23, 2017 at 6:27 AM
  3. Little Ghostman replied to the thread How cold realistically can a domestic freezer go?.

    The way its condensed uses a alcohol or solvent as the liquid coolant, thermal mass wise 5Ltr of solvent cooled to -38C works for sure...

    Jul 23, 2017 at 6:21 AM
  4. Little Ghostman replied to the thread How cold realistically can a domestic freezer go?.

    Its Anhydrous Chlorine (***** to prepare), and ammonia is the other one now and then. But mostly Chlorine is what I am after. I will...

    Jul 23, 2017 at 6:16 AM
  5. edmondcjj replied to the thread Time delay for 12V motor using 555 IC.

    I moved it to row 13 the pin in between the small red lead and the other capacitor. however it does not work and the motor just runs atw...

    Jul 23, 2017 at 5:48 AM
  6. AnalogKid replied to the thread Switching circuit.

    Not to rain on your idea, but a 30 MHz, 1% duty cycle, 1.2 kW pulse circuit is squarely in the range of satellite radio, a few decades...

    Jul 23, 2017 at 5:45 AM
  7. cowboybob replied to the thread Switching circuit.

    Welcome to ETO, jiggawatts. Not sure what you're designing, but could you provide a complete schematic of your proposed circuit?

    Jul 23, 2017 at 4:42 AM
  8. cowboybob replied to the thread How cold realistically can a domestic freezer go?.

    Depending on the ΔT needed to condense your gas, not sure the freezer will be able to maintain that 1° buffer. Although, I suppose that...

    Jul 23, 2017 at 4:38 AM
  9. cowboybob rated Pommie's post Agree in the thread Should I jumper one power trace or multiple signal traces.

    As long as you caps are ceramic then you should be fine. Assuming the chips aren't power hungry then almost any wire would do. Mike.

    Jul 23, 2017 at 4:25 AM
  10. cowboybob replied to the thread Time delay for 12V motor using 555 IC.

    Row 11 is "-", or ground. Moving the cap lead there shorts it and, basically, removes it from the circuit. The cap's lead needs to be in...

    Jul 23, 2017 at 4:18 AM
  11. edmondcjj replied to the thread Time delay for 12V motor using 555 IC.

    oh haha ok so sorry

    Jul 23, 2017 at 3:21 AM
  12. edmondcjj replied to the thread Time delay for 12V motor using 555 IC.

    sorry what do u mean 2 wires stuff in 1 hole. there isnt any stuffed in the same hole tho

    Jul 23, 2017 at 1:53 AM
  13. edmondcjj replied to the thread Time delay for 12V motor using 555 IC.

    However now i moved the capacitor lead back to the original position from row 13 to row 11. it is working again. however the time out...

    Jul 23, 2017 at 1:51 AM
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