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  1. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    Clicked the link and read the page. Pleasantly no Pigeon English! :) Looking forward to your results when they arrive. Chris
  2. CDRIVE

    Successfully unsoldering a big relay

    Found it! https://www.electronicspoint.com/threads/designing-a-time-delayed-relay.268425/page-20#post-1703843 Chris
  3. CDRIVE

    Successfully unsoldering a big relay

    I posted a soldering gun technique a while back but I don't know which section of the forum it's in. It included photos. Anyway a soldering gun will produce a lot of heat fast and you can bend up a box like loop from 12 or 10 gauge solid copper wire. It will heat all pins simultaneously. The...
  4. CDRIVE

    Winco generator not producing electricity

    As always asked. ....Photos? Chris
  5. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    I'm going to consider myself very fortunate that all the Chinese components I've purchased off of Ebay have performed admirably. A couple of months ago I bought a bag of 100 2N2222's and was amazed at how closely matched the Beta was. I tested about 20 of them and they all were within a value of...
  6. CDRIVE

    Power From Sterling Engine

    Yeah, it's the weakling of the motor world. It's a little known fact that the U.S. Navy's Mark 1,2 & 3 torpedoes of WW2 were driven by miniature piston steam engines. I've always loved steam power. It's real power. So if I were doing this that would be my choice. They'll run off compressed air...
  7. CDRIVE

    12v 3amp battery charger lead acid

    Steve I get that but this statement says nothing about filter caps, voltage regulators or anything else. 3A RMS is equivalent to 3A DC. Chris
  8. CDRIVE

    12v 3amp battery charger lead acid

    I'm referring to the statement in bold. If a transformer has 3A rating it's specifying 3A RMS output not input. How does 3A RMS output translate to 2A DC? Chris
  9. CDRIVE

    A Welcome to EP For AudioGuru

    Hi Adam. Actually I don't even expect AG to respond to this thread. He's a consummate ElectronHead that does not engage (I think he's Borg! :eek:) in social commentary. On the other hand if you want to build an exceptional audio amplifier you can't go wrong picking his brain. His member name...
  10. CDRIVE

    A Welcome to EP For AudioGuru

    Adam, I remember posts like this... Eventually AG would give the poor slug what he needed but not without AG's signature prologue. Heck, when he didn't open with one of those I thought he was sick! :p AG, I hope you're taking this with the humor intended.... A 'Celebratory Roast'. ;) Chris
  11. CDRIVE

    12v 3amp battery charger lead acid

    How does 3AC (RMS) convert to 2ADC? Chris
  12. CDRIVE

    Identify Faulty Bulb

    Ed, you've reached new heights. That reply has to be the poster child for EP's most UNDISPUTED politically and socially incorrect reply.... Ever!:eek: Chris
  13. CDRIVE

    NPN transistor as switch for LED problem

    Yes, a shorted Collector - Emitter junction will conduct all the time. Are you sure you have the pinouts correct? Chris
  14. CDRIVE

    Automatic Irrigation System

    You're not complying with the replies you've received. If you used GND symbols the way I told you to you wouldn't be making these schematic errors. You also didn't use the (Trig Pin) resistor recommendations either. You're also a very bad boy because I can usually spot a school project (that...
  15. CDRIVE

    A Welcome to EP For AudioGuru

    Audioguru, welcome to EP. Are you still as crotchety as you were on that other forum that I don't mention here? For those of you that don't know Audioguru (AG), he's exceedingly proficient in audio design spanning from vacuum tubes to solid state but he has spent a lifetime honing the most...
  16. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    I had to think long and hard before replying to this and it's possible that what I say may be all wet but I don't think so. Do you remember this post? https://www.electronicspoint.com/threads/gps-nmea-failover-circuit-upgrade-attempt.278866/page-12#post-1707306 I believe modern RS232 ports...
  17. CDRIVE

    GPS NMEA, Failover Circuit upgrade attempt.

    Personally, I never understood why you thought you needed it. It would make sense if you were transmitting data from the Picaxe (0 to +V logic) to an RS232 port (±V logic) but you're not. That said the MAX232 has been around a very long time. It has an excellent track record. Used by possibly...
  18. CDRIVE

    Identify Faulty Bulb

    You can't test each 3V bulb with 12V without a current limiting resistor or 3 more of those 3V bulbs in series with the bulb under test. Use your Ohmmeter instead. Chris
  19. CDRIVE

    Design filtering capacitor

    That's a 3,300uF Electrolytic cap. We don't know what the secondary voltage of the Transformer is so we can't tell you what the voltage rating should be. What's the secondary voltage? Also, the LM317 should have a .1uF cap connected close to the Input pin to GND. Chris
  20. CDRIVE

    Design filtering capacitor

    Are you contemplating actually making one? Chris
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