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  1. 73's de Edd

    Locking cat door, really need some help...

    As for the door, it goes through the wall separating the closet from a hallway.. Totally missed that . . . . in concentrating so heavily on the cat Genie proper. Hope that you zeroed in on this economical unit or a variant of it. Application: It only has 2 leads and probably will...
  2. 73's de Edd

    Technics SA-G90 With "Overload" message.

    Looks like you need to solder suck / solderbraid free, those two resistors, to get out of circuit along with those two electrolytics and set them safely aside. Then testing out of circuit, one of the resistors should ohm out as open, while the other one is waaaaay up in its current value. Also...
  3. 73's de Edd

    For Sale: Bristol wrench's for Selectric

    PLUS . . . . .pass on the top one for being torque warped and the second one below it for having roundover.
  4. 73's de Edd

    Locking cat door, really need some help...

    . Sir DarrenF . . . . . From the aspect of its mechanical construction and particularly the door aspect . . . .is this being your PORT-A- KITTY ? 73's de Edd .
  5. 73's de Edd

    Technics SA-G90 With "Overload" message.

    Sir Rick79 . . . . . You say . . . . On the board of THIS unit IC651, is a 22 Pin RSN313H25 R672 reads .311 ohms and is connected to the 19th pin. R671 reads .555 ohms and its connected to the 18th pin. ( R671 is the resistor next to R672 ) Here is your missing info that you need to...
  6. 73's de Edd

    Toshiba CRT TV fault... what could the problem be?

    Sir alex1878 . . . . . Ahhhhhhh yes . . . . . . . your top photo confirms the flyback proper almost broken away in a floating island with its foil breaks. That we didn't see . . . . in the other photos . . .I just concentrated on the portion with almost 15 cross breaks. Just hope it all works...
  7. 73's de Edd

    HP 54510A Power Supply Smelling

    ., Sir Paul Ramsbottom . . . . . . . I ordered 560uf caps for C22 and C23 as that was the value shown in the circuit diagram. Those fitted are actually 680uf I now see. Should I just go ahead and replace them with the new lower value ones? Since you probably don't have another scope to check...
  8. 73's de Edd

    Remove AC-DC PSU components from an instrument

    Sir Jodes . . . . . . OBSERVE: Pin 3 is ground referencing . . . .omitted pin 6 seems only to relate to the ancillary power output. To its far right end, you can see that it's foil path is being clipped open, but then being cross inverted, with two resistors inserted on the topside The...
  9. 73's de Edd

    Panasonic Power Supply

    Sir LEE2015 . . . . . . On your same OTHER query, placed in another part of the universe . . . . . and their curt response and castigating you for not having : "Questions on the repair of consumer electronics, appliances, or other devices must involve specific troubleshooting steps and...
  10. 73's de Edd

    Toshiba CRT TV fault... what could the problem be?

    Sir alex1878 . . . . . I would just like to know WHO dropped / stepped on that board ? (****** BOTTOM OF PAGE) It certainly didn't get in that shape, just sitting in the cabinet. Indeed, that crack across the circuit board is being just to the side of the: AMERIKANSKI's say .. flyback...
  11. 73's de Edd

    Panasonic Power Supply

    Sir Lee2015 . . . . . . Not having yet ventured to examine the schematic, my initial guess might be . . .Ferrite Bead 1. 73's de Edd
  12. 73's de Edd

    Technics SA-G90 With "Overload" message.

    . Sir Rick79 . . . . . . . Can you trace its connections and see if one of . . .or both . . . leads of R672 might lead to the 26 pin wide but skinny IC 601 or 602 . . . .RSN3305P power I.C.'s ? . . . . . costing $84 a copy. If so, going to what pin(s) number. Also check out all of their...
  13. 73's de Edd

    Hope I didn't make too big a mistake with my radio...

    Mme Soulwyvern84. . . . . . . I think I remember your being here BEE-4 . . . and you were wanting to only use the amplifier aspect of a radio. You were probably attempting to silence the radio portion of the unit by a disconnect of the detector diode. FAR better,that you just detuned off of...
  14. 73's de Edd

    Toshiba CRT TV fault... what could the problem be?

    Sir alex1878 . . . . . . . An extra "parasitic" winding on the flyback transformer gathers enough 15,734 ~ frequency power to be rectified and then supply an ~ 180 VDC voltage via the YELLOW arrow path to the kine driver board of the kine . . .beside it . It is then dependent upon the C901...
  15. 73's de Edd

    Onboard charger repair. Value of ZD?

    Sir Bigrockk. . . . . . . I certainly see no shielding need, considering its AC line input position on the board. BUT. . . check it out and I believe that you will find that RF/EMI Cu foil shielded rectangle actually is being an X capacitor that is connected directly across the AC line...
  16. 73's de Edd

    240V ac LED bulb failure

    . Sires . . . . . . . O.K. this last shown unit seems to be the KISS route to go, with no high frequency conversion with adjunct semiconductors. The raw AC line just comes in and uses that AC line series " voltage dropper" capacitor that "thinks" its a 3K resistor at that incoming 50~...
  17. 73's de Edd

    Is it possible to limit voltage going to a telephone?

    https://en.wikipedia.org/wiki/British_telephone_sockets
  18. 73's de Edd

    HP 54510A Power Supply Smelling

    yep
  19. 73's de Edd

    HP 54510A Power Supply Smelling

    Sir Paul Ramsbottom . . . . . . . It would definitely be best to leave the PS connected and be getting loaded down by the circuitry. You know about the high voltage associated with Q3 from your "OLD tube" know how. I make connections with clip leads or solder tacked on wires and thereby, that...
  20. 73's de Edd

    HP 54510A Power Supply Smelling

    Sir Paul Ramsbottom . . . . . . . GEE-OH-GOOD-GOSH--GOLLY-DAMNED-ALL-A-MIGHTY ! . . . .if THIS is what you are using on feeble OLD tubed radios . . .don't you DARE let us see what instrumentation you are using on Tran-sist-um-oh-ferrized and Interly-Grated-Circuitious designed units . You...
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