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  1. 73's de Edd

    Can someone please explain this circuit for me?

    Sires . . . . And so . . . .its like this . . .I had blown that schema up 4X and started to COLOR box it up in sections for separate areas of clarity of its design : A . . .The RAW DC portion B . . .The constant current derivation from TR1 and its feed down to the to the Zener diode...
  2. 73's de Edd

    Broken Plastic clip on/off switch

    . Sir Jamie Cullen . . . . . . . Well . . . . . I can see that the cabinet proper is being of molded polypropylene. If my repair to do I would cut out a plastic L bracket to put on that broken side. The source of the same identical plastic would be a sacrificial harvest of the end shutter...
  3. 73's de Edd

    Toshiba CRT TV Fuzzy image

    Sir Bobi . . . . . Give us the brand and the model number of that Television. Sound like you have some electrolytic capacitors that have just drifted down in capacitive value / effectiveness and increased their ESR to just barely working at an unstable threshold. With the real info being in...
  4. 73's de Edd

    NTD4963N

    Sir IvanMuse . . . . . . . With either options electrical specs being the same. You would be wanting the top unit. (Because with that second unit, and only one being available, that rockets its price value to a potential windfall . . .heh . . .heh . . .heh. ) You probably was just...
  5. 73's de Edd

    Comedy Thread

    .
  6. 73's de Edd

    Help with powering immersion heater!!!

    . GND connects to the AC cords round ground pin . . . via a GREEN wire. "So I soldered the green wire from the power cord to the copper plate on the heater, and one of the other two wires from the power cord onto one of the heater's leads. Tested it, but heater wont turn on." That units...
  7. 73's de Edd

    Can Someone Please Tell Me The Name And Function Of This Pin?

    Sir vlaare. . . . . . . Coming on the scene only in the latter CMOS days of 1995 . . . . . . it CERTAINLY wasn't a viable building block in my MUCH- MUCH earlier hey days . Using W as WRITE or enact / enable. Do not Collect $200 . . . .Do not go directly to jail . . .but . . . instead...
  8. 73's de Edd

    Help with Power supply to Florescent display circuit fault

    . Sir Jimkarl . . . . . . . but . . . but . . .BUT . . .BUT . . .BUT! . . . . . . . .You be "Da Man" . . . . . since YOU fixed it ! Even with my 100 wpm keyboard poking . . . . I am pressed for time at the present, in needing to analyze my "numbah one " son . . . . .Karl's . . . ...
  9. 73's de Edd

    help repair router adapter

    Sir pharaon . . . . . . . Can you "remote" that new PHYSICALLY LARGER electrolytic with leads or use another full leaded length one temporarily. You have 2 diode leads now pressed right up against its 5 mil insulative film . . .then they are susceptible to making contact with the aluminum...
  10. 73's de Edd

    help repair router adapter

    Confirm if 2AL. 250 might be a blown 2A slow blow chemical fuse, since the other was a jumper wire.
  11. 73's de Edd

    NTD4963N

    Sir IvanMuse . . . . . . . Using your reference below , you would want the second one down as the top one has thru hole leads and is not pre formed for you http://www.digikey.com/product-search/en?keywords=NTD4963N BUT the big problem is that this is now a borderline discontinued number...
  12. 73's de Edd

    Help with Power supply to Florescent display circuit fault

    Sir Jimkar . . . . . . . Go back to the power transformer and power up and measure for the AC voltage across terminals 12 to 14 and then move over past R14 and R15 series resistors to see what your AC voltage is there. Pass us the AC voltage measured in both places . . . . . . . expecting it...
  13. 73's de Edd

    help repair router adapter

    Sir pharaon . . . . . . . The MJE13005 is a high voltage, hi speed switching, NPN bipolar transistor . Looking at the AC power half of the board at at D7 and D8 diodes, over towards the smaller ferrite cored transformer . . . .do I seem some carbonization deposit ? Also under very bright...
  14. 73's de Edd

    XK X250 FPV Camera Antenna Repair

    . Sir kagaos . . . . . . . Ahhhhhhhh Sooooooo . . . . .Most honnable apologies . . . .I be velly velly bizzy lately. Saw your third from last post and see that the ohmmeter testing would have had two errors. The BLACK probe lead needs to be moved from the 10 AMPS input jack over to the...
  15. 73's de Edd

    help repair router adapter

    . Sir pharaon . . . . . . . YES . . . that 5.6 ufd unit is the first suspect, with its visible rupturing. The green one beside it is oriented such that I can't read its capacitance and voltage rating . . .what is it ? 73's de Edd .
  16. 73's de Edd

    Missing RF controller

    . Mme Sophie42. . . . . . . I'm in agreement on the hand unit very- very likely being a citizens band radio on 27 Mhz spectrum to comply with the talking aspect BUT there is ADDITIONALLY either tone modulation or pulse width modulation of that signal to get the motorized feet rolling...
  17. 73's de Edd

    Smoked capacitor

    . Sir musicman88240. . . . . . . No power supply bleeder functions are being noted on schematic. No confirmation of surface mount use in that area but they prolifically like to use a 47 ohm in series with a 1 nf cap as being a snubber pair, across their power rectifier diodes. Your...
  18. 73's de Edd

    Transistors needed,

    . Sir andomando. . . . . . . Those RCA numbers made me go back to the '80's and consult some of my design reference books from that time frame. I am now wondering if your amp unit is made along these manners that RCA used back then. If so, then your RCA 1C03 and 1C04 would be used as...
  19. 73's de Edd

    Part Identification

    . Sir SoundFreq11. . . . . . . Why 'soitanly . . . . . it reminds me of a tubular ceramic capacitor . . . in ye olde tymes they looked like this: Of course now-a-days, when there is no need of leads, and being surface mount . . . .they have taken a variance to : 73's de Edd .
  20. 73's de Edd

    Diode identification help

    . Sir Steve Goldson . . . . . . . Basically . . . . .being 20-30-40-50 cent items . . .when I plugged in your priority specs of being a 600V unit at 1 Amp and switching speed capability of 120ns or faster. a . . .la . . . ...
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