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  1. Delta Prime

    Need help troubleshooting pcb relay

    Hit one out of the park with two men on base! ;) https://forum.allaboutcircuits.com/threads/relay-chatter-sparking.194263/
  2. Delta Prime

    Ebike battery

    The 12000 watt motor on Enduro e-bike is a monster. My 500 watt motor on my Shimano 27 gear speed mountain E-bike full suspension, fat tire rear drive can go over a 100 kilometers an hour, 65 mph. I have taken it on the freeways here in California. Uphill 45 miles per hour on a 30% grade the...
  3. Delta Prime

    Si5351 as ultrasonic driver/transmitter

    Four years is too long for me to keep schematics lying around. But I remember exactly what I did. I have no problem drawing you one up it'll be a while more likely next week I'll pencil you in the schematic be patient.
  4. Delta Prime

    Ebike battery

    I would rather buy it just the kit if you're a DIY kind of guy. Battery cell upgrades, Add Paddle assisted torque sensor crankshaft, Brake upgrades including quad piston as well as double line/double disc & various brands , Add Regenerative Breaking, Front & Rear Lights + Horn, Front Turn Signal...
  5. Delta Prime

    Identify 1960's Diode Manufacturer By Logo?

    I used to hear that all the time growing up. but now that I'm grown up. I am terrified because. "True terror is to wake up one morning and discover that your high school class is running the country."—Kurt Vonnegut;)
  6. Delta Prime

    Need help troubleshooting pcb relay

    Is your thread I Will stand down. Good luck to you
  7. Delta Prime

    Need help troubleshooting pcb relay

    All right good sir I say this respectfully you're giving my colleagues the runaround (independent of by design or unintentional) that stops here. Make model serial number of your wine cooler Where are you located geographical location show me a setup how do you have it plugged where you're...
  8. Delta Prime

    Need help troubleshooting pcb relay

    Now now the obvious question is what is the input voltage? I have driven it with 12 volts on the input or 6 volts on the input it all depends on your transistor and your circuit I need to see a schematic but you have probably already posted one I just wanted to hit this thread not marry it. I...
  9. Delta Prime

    Need help troubleshooting pcb relay

    I jumped in right the last post you made so just keep what I said in mind it may Not be specific to what you are doing your application cuz I don't know where you're taking your measurements I just saw .7V and thought automatically you're measuring as the picture I posted. Still didn't hit the...
  10. Delta Prime

    Need help troubleshooting pcb relay

    Says who! This is what you're doing kiddo! Now how about a thumbs up please Where did you read that I'm going to have to have a talk with them. It will vary anywhere from 0.4V to 0.8V it will depends on many factor Your meter mostly if you have it on diode test even if you apply voltage and...
  11. Delta Prime

    Identify 1960's Diode Manufacturer By Logo?

    Tell me about it! I came across a couple capacitors from two different companies Monsanto and Union Carbide I knew I should have kept them but I didn't want to glow at night. ;)
  12. Delta Prime

    Help identifying a transistor

    Aw shucks, you made my crystal ball blush. Now I can't see anything! :mad:
  13. Delta Prime

    Rat Zapper Power Supply

    That sounds rather sadistic! I like to see that can you take a video. What do you use for bait?
  14. Delta Prime

    Help identifying a transistor

    That was good! I dropped my box of apple juice reading that! I tried all three but I couldn't work the zipper :p
  15. Delta Prime

    Help identifying a transistor

    I'm not a mechanical engineer but I played one on a television show.:p
  16. Delta Prime

    Help identifying a transistor

    Could be a game of lights and shadows further inspection is needed by you of course the teeth look rounded but why just at that point they should all be rounded.
  17. Delta Prime

    Help identifying a transistor

    An additional photos needed I would like to see the underside of that blue thingy and as is. Focusing on the solder connections please. If you're really unsure about your soldering perhaps a friend could help you.
  18. Delta Prime

    Help identifying a transistor

    Relay contacts are . Pitted and worn
  19. Delta Prime

    Help identifying a transistor

  20. Delta Prime

    Help identifying a transistor

    It's the reason for in circuit transistor tester if it was working before properly it takes into account that transistor to amplify maybe that's why they put in AF amplifier transistors in there so you quickly check if they're dead or still operative . And you have done just that. Now the...
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