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  1. Rleo6965

    How to interpret Mosfet RDS ON resistance?

    I'm sure you can help me here. I've been searching in the internet how to convert the IRF640 Mosfet Rds (ON) 180M Ω into Rds (ON) 0.0XXX Ω. But I can't find the conversion. I'm not sure if its equivalent to Rds (ON) 0.18 Ω or 0.00018 Ω.
  2. Rleo6965

    DIY Inductance Meter

    Can somebody recommend diy project of inductance meter not using PIC.
  3. Rleo6965

    Need replacement of NEOSID Ring Core

    Hi, This time I need your expertise finding equivalent of NEOSID 17-732-22 Ring Core 14.8X8X6.35mm. I think its now obsolete part. I need this core as filter choke to avoid 22khz spike from center tap of push pull transformer going back to 12V Car Battery. I have already build this dc...
  4. Rleo6965

    Is Triac reliable as replacement for Relay for 220V multiteapped Transformer?

    20 years ago I've successfully designed and built a 5 relay Automatic Voltage Regulator for household use appliances and computers. But I did not market it because relay switching was noisy and annoying. Now I want to replace 5 Relays into Triac for faster and noiseless voltage selection or...
  5. Rleo6965

    What epoxy used for encapsulating pcb?

    Saw a picture of encapsule pcb board in another thread. I want also to encapsule secret circuit on a small pcb to protect my design so that it can not be easily copied. It's about 2"X2 1/2" pcb. Can somebody give me the name of brand of this kind of epoxy. Thanks in advance. It's the...
  6. Rleo6965

    Want to build ESR Tester

    I have 40 yrs in experience with electronics ( from Data General Minicomputer to now Micros POS ) but never tried use or build an ESR Tester. I thought its not useful tool for electronics.:D Can you guys recommend good working, tested ESR project? Thanks in advance.
  7. Rleo6965

    Multiple Spark CDIS Project

    After reading and analyzing post here in Electronics Point. I able to solved electrical noise problem that cause misfiring of my Multiple Spark Project. Here's the video of my project.
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