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  1. Martaine2005

    Understanding a regulator circuit with MOSFET and Zener-Diode

    I for TWO enjoyed it TOO. TO read old or new threads with math involved helps me heaps.. My ‘discombobulation’ will one day drop the ‘dis’ to ‘bobulation’. I spend hours reading old posts while commuting on the train. Martin
  2. Martaine2005

    New project - 1967 oscilloscope restoration

    It must be, 1967 was a great year! That scope must be 52 years old..:D
  3. Martaine2005

    another oven transformer question/problem

    Hi draylen19, looks like the transformer is 12VA, 6V+6V. It may have 2 primary inputs of 120V+120V. You can (or it is) Primaries in parallel for 120V or in series for 240V. Also 2 Secondaries as two 6V in parallel or 12V in series. Martin
  4. Martaine2005

    Need Guidance (not-spoon-feeding) on self-Learning Embedded System development to get a Job

    Hi mack38. Given your expertise in C, C++ etc, getting a job should be a pinch. Now, I have zero knowledge of programming but just bought some PICkit programmers to study myself. But looking into the future of electronics, robotics, automation and anything ‘smart’ come to mind. But you...
  5. Martaine2005

    Panasonic Dect phone low emf option

    Oops, never answered the op’s question. Not sure I can.. Anybody asking about EMF is ‘ghost hunting’. We have special places for that. However, you must be talking about a transformer? Or a train set?
  6. Martaine2005

    Panasonic Dect phone low emf option

    On the dect phones in the UK there is no option. They either work or don’t. In my experience. Martin
  7. Martaine2005

    Audio Marantz PM500

    Could be a mis-print, can’t see the schematic atm. Either way, it once worked. You seem to have narrowed it down to the EQ board. So, all works except a ‘fader’ distorts the audio?. This happens on the LEFT channel only?. I read earlier about a ‘hiss’ noise. Was it hiss or hum?. And this noise...
  8. Martaine2005

    Audio Marantz PM500

    ESR/component testers on Ebay for £4.00. I bought one months ago to test it. It actually works pretty well. I don’t use it often as I have an ESR meter. Might be worth buying one on this occasion. Have you checked if there is DC on the amp speaker outputs?. It should be minimal in the...
  9. Martaine2005

    Basic Pulse generation help

    That is correct. Flat side facing you and legs pointing at the floor. Flat side down? Would depend on leg direction. Flat side down and legs pointing to the floor, then yes. Martin
  10. Martaine2005

    Audio Marantz PM500

    Hehe, try the teenager ‘Mosquito’ test signal. 15kHz I think. Shopping malls played this frequency to stop loitering teenagers. It works. My boys complain about my battery chargers squeeling. I hear nothing. Anyway, good thread and good read. Martin
  11. Martaine2005

    Datasheet wanted for Q165A diode

    Sorry, I am on a train with only my phone. Hope the pictures help you identify the correct component. Martin
  12. Martaine2005

    Datasheet wanted for Q165A diode

  13. Martaine2005

    Datasheet wanted for Q165A diode

    Have a look at this. Martin
  14. Martaine2005

    Aiwa AMD006 volume control

    Hi Stomer, There seems to be many complaints about this particular unit and volume. All say the volume is quite loud on lowest setting plus the volume defaults to half volume when changing source inputs. Must be a known issue with this model. I’ll wait for others to chime in here. Martin
  15. Martaine2005

    Need help to identifi a fuse that does not state its size

    Hi caryallenmartin, The fuse rating will be on one of the fuse end caps. You may need a magnifier to see it clearly. Or you may have to remove it from the pcb in order to view it. The component you point to is a transistor. There seems to be some discolouration of the pcb next to it. It is...
  16. Martaine2005

    Broken LED grow light help

    You can clearly see a faulty LED in the photo. Theses units are typically wired in series and the series circuits are connected in parallel. This is why a blown LED causes others on the same series circuit to not come on. Martin
  17. Martaine2005

    Two unrelated questions

    Now why didn’t I think about that!.. My RC helicopters (Heim, Hirobo & Kyosho) all have fuselage windows. Albeit smoked and dark in colour. But certainly worth a try. My main two shops have closed down, so a little research on my behalf is needed. Thanks @Bluejets . Martin
  18. Martaine2005

    Two unrelated questions

    Yes, thank you Dave. I can find clear. I was looking for red or green. These seem to be a problem without the correct search term. Martin
  19. Martaine2005

    Two unrelated questions

    Thanks Dave for the info. I can’t get acrylic less than 2mm. I may have these sizes confused because of many phone calls and inadequate notes taken. I can’t even remember all the different plastics!. But acrylic, poly carbonate, vinyl etc were either too thick or paper thin. I just want the...
  20. Martaine2005

    point me in the right direction

    Alternatives? Yes plenty. Viable? Perhaps. FPV that @Bluejets suggested might be a better alternative although these work through a receiver, typically 2.4 Ghz these days. Meaning more hardware. I think you need to hack a digital camcorder or Gopro etc to achieve your goal. The camera you...
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