Search results

Search Forums New Posts
  1. 73's de Edd

    Power supply for little halogen light popped

    Sir bushtech . . . . .meister Either of power transistors options would be fine, as I am expecting that Fairchild unit to be coming from their Korean facilities. (K prefix) Can I stick ten of them in parallel? ONLY if you want the current trip to be altered up to foil trace vaporizing level...
  2. 73's de Edd

    Power supply for little halogen light popped

    Piggy back one, two or three 9V, series wired , inter plugged transistor radio batteries with one lab supply power lead and then, as if by magic, you will find yourself having a quasi adjustable stacked 9-39 volt or 18 -48 or 27-57 VDC supply !
  3. 73's de Edd

    Power supply for little halogen light popped

    Sir bushtech . . . . . I must have accumulated upwards of a dozen different units of that family and am now starting to tear them down for analysis and parts . . .particularly / MAINLY for their 13005 thru 9 series of fast switching HV power transistors. And yes they COMMONLY fail shorted...
  4. 73's de Edd

    New project - 1967 oscilloscope restoration

    There's just enough room to place the caps with the long sides facing each other. If I'm interpreting that correctly . . . dimensionally, that would be my second choice of arrangements option. The bottom caps leads point upwards and the second caps leads point downwards. That leaves the one...
  5. 73's de Edd

    New project - 1967 oscilloscope restoration

    Sir Steve . . . . . In analyzing and . . . . . then winning out In my minds eye, is the adhesive bonding together of the lengthwise ends of the set, with their wire leads arranged pointing topside up. Then, in looking at the chassis real estate distance being available from the frontal...
  6. 73's de Edd

    Video: Replacing the grinder on a Saeco Vienna coffee maker

    RE . . . . https://www.electronicspoint.com/forums/search/19002757/
  7. 73's de Edd

    Comedy Thread

  8. 73's de Edd

    another oven transformer question/problem

    Really . . .REALLY . . .REALLY . . .ALSO need to see the brand and model involved.
  9. 73's de Edd

    Voltage fluctuation on 12VDC/24VDC dual output P/S

    Sir partyanimallighting Au Contraire . . . . Looks like you DEFINITELY reversed some of your parts identifications. Specifically . . . . The top YG901C2 dual diode with common anode is a 5A fast switching unit which creates your lower voltage supply with the storage of its two 25VDC...
  10. 73's de Edd

    Marconi TF144H/4S

    Sir Sinewave . . . . . Initial confirmation ; Is if you have powered up the unit and received a signal from the generator unit to a nearby or connected receiver in the G thru J bands of the signal generator. If so, then how about your having connected a low z...
  11. 73's de Edd

    Tacx T2240 turbo trainer - blown resistor

    Sir Peathaugh . . . . . Doesn't look like the party of the first party . . . thrice removed . . . has ever come back to the situation. In a further and deeper examining of the photo that he submitted . . . . . . Looks like you found one of the small ringlets that had opened up in the winding...
  12. 73's de Edd

    New project - 1967 oscilloscope restoration

    Sir Steve . . . . . From the faceplate markings and knobs and general frontal treatment . . . what does that unit think it is ? . . . . a Tektronix model 539 . . . wannabe? If anyone can confirm whether that dual 0.2uF 1500V cap is likely to be electrolytic I'd be very appreciative. Nope...
  13. 73's de Edd

    Comedy Thread

    Re . . . . . . https://www.electronicspoint.com/forums/attachments/people-that-got-married-jpg.46527/ Nah, that was also being inclusive of Mormons and Muslims .
  14. 73's de Edd

    Might I trouble you a moment with my power supply, good sirs?

    Greetings Kinde Sire Pharaday . . . . . . ( Where's your Chage ? or Phshield ? ) TRUE . . . . . what you have found yourself is being the FIRST unit, of the series shown below. One unit, itself, will not adjust between ALL of those voltage ranges being offered by the series.. It has...
  15. 73's de Edd

    Comedy Thread

  16. 73's de Edd

    TNY264 - What do the other ID numbers mean please?

    Sir grahal . . . . . If you haven't already viewed and actually examined the unit and you have a dead unit with no display or other action, that is a very good possibility. And even BETTER if someone was around in the area and heard a ! POP !. Here is an application note for the unit and if...
  17. 73's de Edd

    Over Range Microwave: Exhaust Fan and Heating Issues

    Brand and model #
  18. 73's de Edd

    Seeking help with 12v dc motor controller on golf buggy

    " BUBBA's " . . . no FRILLS (nor fanceeeeee equipment) procedure for the pulling of Q1 and Q2 . . .TO-220 cased power transistors . HOWTODOITTOIT . . . . . You need a piece of wood to "whittle" / shave / sand down to slightly less than the gap now existing between the transistors 3 flat...
  19. 73's de Edd

    Seeking help with 12v dc motor controller on golf buggy

    EXTREME last part of Pee Dee Eff . . . bottom right corner . . . HIS relay has the pins 1 and 2 coil connections being awry from your submitted relay. (5 and 2 on your drawings numbering assignments. )
  20. 73's de Edd

    Audio Marantz PM500

    Sir eytonbranhan . . . . . Your RF21 pot is being associated with your QF03 stage which is likewise related to the lowest frequency aspect of your audio spectrum control . . .which I woulld suspect to be marked as being 50 or 60 Cycles / Hertz. SO . . . that pots adjustment, should be more...
View older results
Top