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  1. Delta Prime

    Can an audio amplifier be used to transmit or receive radio signals?

    That’s funny. I never heard (ELF) Extremely Low Frequencies. ;)
  2. Delta Prime

    Can an audio amplifier be used to transmit or receive radio signals?

    Apologies ; just forget everything I said.thank you. This is true!
  3. Delta Prime

    How to calculate on/off time with 2 Capacitors

    No problemo. Take a look at this online 555 timer calculator, courtesy of; the one & only… @bertus https://forum.allaboutcircuits.com/threads/good-free-555-timer-calculator-program.99449/post-745916
  4. Delta Prime

    How to calculate on/off time with 2 Capacitors

    Hello! Nice to talk to you again. So you need a free running ,A stable, multi vibrator?(flasher circuit.) The equation you posted is for a Monostable,one shot.(just one flash or pulse.) In your schematic, you have two Zener diodes designated as D1 and D2. Are those two LEDs you wish to have...
  5. Delta Prime

    Temna schematic needed for 72-540 injector tracer

    Can you please take a photo of your unit, .. I need to see all your switches,knobs, test lead input, output, and hopefully they’re all legible & your Analog, VU meter. Please reference the schematic supplied, On the input it looks like you have a variable attenuation; up to 60dB’s in 20dB...
  6. Delta Prime

    Comedy Thread

    Now. why does the river Trent run through Nottingham? Because if it walked, it would get mugged…
  7. Delta Prime

    Motherboard map Tele-pong Electronic TV Game

    :( Apologies. all I could find was an Atari Pong schematic circuit.
  8. Delta Prime

    Temna schematic needed for 72-540 injector tracer

    Damage what? The audio AF/RF probe or the 72-540 signal tracer/ injector? The circuitry Submitted with the AF-RF of probe schematic circuit below; is more than likely inside your unit, at least that is what the schematic tells me. All that is needed is a pair of what looks like (DIY) O’Scope...
  9. Delta Prime

    A Speaker OHM question

    Apologies , did not read the manual. What is your 8 Ohm speakers, continuous RMS power rating in Watts? What is your rear channel audio power amplifiers output in watts when set to 6 Ohms? I’m with you. I would budget for matching speakers than a brand new Home theater receiver. ;)
  10. Delta Prime

    Electronics Knowledge and Skill Level of This Forum

    The answer is yes. To all of the above ; in the best possible way… :)
  11. Delta Prime

    Best driver choice for LED line lights?

    +1
  12. Delta Prime

    Can an audio amplifier be used to transmit or receive radio signals?

  13. Delta Prime

    Can an audio amplifier be used to transmit or receive radio signals?

    Confirmed! You would not have asked this question; if you knew about carrier waves? It is rare to learn from the top down. Unless you’re like me… :cool:You’re asking silly questions. Danger! Here be dragons!! :(
  14. Delta Prime

    Complete nub wants to entertain his dog

    What breed is your dog? How old is he? He might just take the Jack-in-the-Box with them,as the squirrel comes out of the box,we can make a bigger squirrel come out after the little squirrel and teach him my lesson? What do you think? We can paint the little squirrel blue and put little jets for...
  15. Delta Prime

    2.4v NICAD CHARGER?

    You have been here since 2011 so I’ll let that geek comment pass… Making,model of your two cell electric screwdriver, please.
  16. Delta Prime

    Sound transmission laser

    Welcome to Maker Pro. I need to see that circuit in order to help you… :)
  17. Delta Prime

    Removing hard glue from Transformer coils?

    I use hot air. It pulls off like bubblegum using solvents will compromise the enamel coating. Microwave transformer, Cores are made not to saturate. Secondaries will deliver a couple of kilovolts at an amp or so but if shorted by your flesh it will hurt the whole time you are dying. This is not...
  18. Delta Prime

    small motor fishing line keeps snapping

    PolyTetraFluoroEthylene (PTFE) Teflon dental floss would be my choice; it will break down in 70 to 80 years If exposed to the atmosphere. For your application it is more than strong enough; resistant to embrittlement and readily available in the bathroom medicine cabinet…
  19. Delta Prime

    Most effective way to build simple counter

    Now we know what a little bit is..
  20. Delta Prime

    Full black background screen on Raspberry Pi 4 Model B

    What is your config.txt setting now? Do not go raspberry pie forums go to the source,”Dakboard OS” Here
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