Search results

  1. Chemelec

    How do I amplify a low Amp signal (12 v, 100 mA) to 12 v 3.0 Amps?

    With a 16 VDC Supply, this can deliver 30 watts into a 4 Ohm load.
  2. Chemelec

    How do I amplify a low Amp signal (12 v, 100 mA) to 12 v 3.0 Amps?

    You Said the Electromagnet was 4.4 Ohms and rated for 12 volt. So 100 mA is FAR BELOW and Damage. And the 100 mA is NOT Delivering 12 Volts. NO WHERE EVEN NEAR THAT. If you Amplify that Signal with a Power Amp and use a Matching Transformer, you could bring it up to a MORE Suitable Power Level...
  3. Chemelec

    How do I amplify a low Amp signal (12 v, 100 mA) to 12 v 3.0 Amps?

    100 m Amp? Is that 100 Milliamps? Possibly use a Power Amp and a Impedance Matching transformer. But getting 33 watts with 12 volt supply is very unlikely. You could use a Square Wave, Driving a MOSFET to get More Current flow.
  4. Chemelec

    How do I amplify a low Amp signal (12 v, 100 mA) to 12 v 3.0 Amps?

    There is a Considerable Difference between powering them from 12 volts DC and a Low Frequency AC. It is NOT so much about the DC Resistance as it is the AC Impedance. Also are you using Sine Wave, Square Wave or some other Waveform?
  5. Chemelec

    How do I amplify a low Amp signal (12 v, 100 mA) to 12 v 3.0 Amps?

    What is this Electromagnetic? Inductance and/or Resistance of it? Does it have an Iron Core?
  6. Chemelec

    Crystal 16000.0

    Physical Size doesn't mean much. I have some VERY Tiny Crystals in the KHz Range. I would say it is 16Khz
  7. Chemelec

    What are those components?

    Probably Original Numbers Removed and In-House Numbers added. No Easy Way To Know what it really is.
  8. Chemelec

    Electronic timer clock

    Yes it is Possible, But first you need to find a clock that has an option to Stop it and hold the time. And you can use a Photo detector or a Proximity Detector.
  9. Chemelec

    Is Kester 44 60/40 rosen core solder correct for general work?

    In My Opinion YES. As to Copper Pipes, I have used this solder for that also, But you Need Some of the Liquid Flux. Not just the Small Amount that is In the Solder Core.
  10. Chemelec

    Is Kester 44 60/40 rosen core solder correct for general work?

    I prefer a Kester Brand 331, 63/37 Water based Flux Solder. Than you can just wash the whole board under a Warm water Tap to Remove all the flux from Both sides of the board. Dry it and away you go.
  11. Chemelec

    For Sale: 150GAT50, 500pF, 15KV Capacitors......Actually FREE

    Everyone in the World mails me Real Money. Want to talk, Email me your Phone Number. chemelec at Hotmail.com
  12. Chemelec

    For Sale: 150GAT50, 500pF, 15KV Capacitors......Actually FREE

    The Diodes are quite Light, But 50 of these capacitors weigh Over one pound. When wrapped up and Sending these by Canada Post Air Mail, I expect the Shipping cost will be around $17.00. Payment to me Must be Actual Money, Mailed to me in a Letter.
  13. Chemelec

    For Sale: 150GAT50, 500pF, 15KV Capacitors......Actually FREE

    Shipping Cost Is by WEIGHT. So more to the point, "How Many do you want"?
  14. Chemelec

    Tin plating

    Personally I Prefer an "Electrolysis NICKEL Plate". Gives a Nice Bright Plating and solders Nicely.
  15. Chemelec

    Zero ohm resistors.

    Glad I Helped.
  16. Chemelec

    Wanted: Electronic Component Kit for Make: Electronics

    Kind a VAGUE? What Projects are in that Book?
  17. Chemelec

    For Sale: 150GAT50, 500pF, 15KV Capacitors......Actually FREE

    Excludes Shipping Cost, But can be Combined with the HV Diodes also posted here.
  18. Chemelec

    For Sale: Actually For Free, Excluding Shipping Cost

    SHV-24 High Voltage, High Speed Diodes. Rated 24KV & 2 mA. Maximum Limit of 25 Pieces per Person.
  19. Chemelec

    What a battery charger looks like

    Might be Good to add a Heat Sink to that Power Transistor or Mosfet.
  20. Chemelec

    Tin plating

    I don't see any Advantage in Tin Plating, It still Oxidizes. I have done some Nickel Plating and Like it Much better.
Top