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  1. ThomasWheeler attached a file to the thread Clamp on analog meter.

    I tested my galvanometer and the needle went all the way to the right so I assume it is still working. What should I do next?

    PHOTO_20180420_091211.jpg PHOTO_20180420_091309.jpg Apr 20, 2018 at 3:41 AM
  2. Audioguru replied to the thread UM66 is not giving full tone.

    The transformer symbol is wrong and the tone generator symbol is wrong. It should be obvious that the transformer powers this circuit so...

    Apr 20, 2018 at 3:33 AM
  3. davenn replied to the thread Resistor to limit current to circuit.

    yes :)

    Apr 20, 2018 at 3:18 AM
  4. starscream replied to the thread Resistor to limit current to circuit.

    Okay so the current drawn through the switch will not be determined by the capacity of the power supply but rather the draw of the...

    Apr 20, 2018 at 2:43 AM
  5. LukeDupont replied to the thread talking to my phone.

    Those are perfectly valid concerns. The reality is that many (especially Chinese) Android phones come with spyware preinstalled, tons of...

    Apr 20, 2018 at 2:30 AM
  6. LukeDupont liked kellys_eye's post in the thread talking to my phone.

    But on a more serious note - yes, for sure there has been a considerable improvement in text-to-speech ability. The last time I tried...

    Apr 20, 2018 at 2:17 AM
  7. LukeDupont replied to the thread what is difference between c and java code.

    Are you trying to add two pointers together in C and confused by the result?

    Apr 20, 2018 at 1:16 AM
  8. Tha fios agaibh liked ChosunOne's post in the thread Ademco vista Honeywell Alarm 20p with a 6160 keypad.

    TRizzi, I’ve looked at your threads in the home security systems section of doityourself-dot-com and in the Honeywell and Ademco section...

    Apr 20, 2018 at 12:46 AM
  9. rahulb replied to the thread UM66 is not giving full tone.

    yes, the bell push is on the main side of the center tapped transformer. tone generator is IC BT66 ( Q1) which gets 3.9v through zener...

    Apr 20, 2018 at 12:21 AM
  10. duke37 liked Bluejets's post in the thread UM66 is not giving full tone.

    Eeeeek.....Bad idea.

    Apr 19, 2018 at 11:52 PM
  11. TRizzi replied to the thread Ademco vista Honeywell Alarm 20p with a 6160 keypad.

    Thank you for you're reply, yes everyone who answered my posts has helped me out enormously. So I guess I do have a Z26 in my house...

    Apr 19, 2018 at 11:51 PM
  12. Bluejets replied to the thread UM66 is not giving full tone.

    Eeeeek.....Bad idea.

    Apr 19, 2018 at 11:49 PM
  13. duke37 replied to the thread UM66 is not giving full tone.

    I have had another look. The input transformer is shown as a centre tapped resistor. Presumably the push switch is in the mains feed. Q1...

    Apr 19, 2018 at 11:44 PM
  14. (*steve*) replied to the thread Resistor to limit current to circuit.

    And if the two LEDs are in series, the total current will be 105 milliamps. Presumably you have the correct series resistor for the...

    Apr 19, 2018 at 11:43 PM
  15. (*steve*) liked hevans1944's post in the thread heat shrink as water insulator.

    Make sure you are using the right heat-shrink tubing. For a waterproof seal you need to use tubing that has an adhesive coating inside...

    Apr 19, 2018 at 11:38 PM
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