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  1. 73's de Edd

    Dual battery powered tube light - blown transistors

    Sir Cirkit . . . . . You say . . . . . You are right in that the blue wires are from a linear transformer which is to charge the battery and also run the tubes too. I would now venture to say that the BLUE wire pair feed into the FWB made with the 4-1N4000 series sized diodes. This power quad...
  2. 73's de Edd

    Water dispenser board

    I say . . . .WHASSAMATTAHYOU ? If you are in distress, and totally freaked out, in seeing that Amber " pookie" all underneath and about that corner cap ? " DON'T WURRY 'BOUT IT . . .IT WAS PUT ON 'DERE BY SALLY JEAN JOHNSON AT THE FACKTURY TO KEEP 'DAT MASSIVE AND QUITE UNWIELDY CAPACITOR IN...
  3. 73's de Edd

    Dual battery powered tube light - blown transistors

    Sir cirkit . . . . . You gonna have to give this 'ole dummy some degree of assist . . . . on that there . . . " battery powered dual tube light " daffynition. Can I assume that the lamps are quite hefty white LED units . . .OR . . .fluorescent*** tubes ? . *** Hinted at, by the presence of...
  4. 73's de Edd

    Yamaha HS8 suddenly stopped working

    Sir adamrodgers . . . . . Working with . . . . When the power is on, transformer humming can still be heard, indicating the fuse has not blown, and there is no power light or sound coming from the drivers. (WHAT . . if the /a fuse is being located PAST the transformer ?) AND Most power...
  5. 73's de Edd

    Hear like a dog - electronic ear protection modification

    Go analog and investigate trying this . . . . . https://www.nutsvolts.com/magazine/article/june2011_berber et https://nutsvolts.texterity.com/nutsvolts/201106/?folio=30&pg=30#pg30 Caveat . . . . . If so using, triple check his VERO board layout / wiring against the actual schematic ! And...
  6. 73's de Edd

    Repairing a burned-out Flash Unit (screenprinting)

    Sir Rooster363 . . . . . . . . . . my continuance Oh h h h h ( sorrowful, woeful sound) . . . . . .good Lord . . . . . . for THAT exact unit ! . . . . .then, be prepared to take out a second mortgage lien against your house. Check out . . . just like 'ole tee shirt dude did . . . . and see...
  7. 73's de Edd

    Geneva model M power supply

    Sir tarheeldiver . . . . . Looks like the found GENEVELAB model M of Bluejets and yours don't agree. With his being AC line cord powered and Your units, showing a need of a wall wart of 24VDC @1 amp with its negative ground shell and a HOT center pin. With his found unit putting out 100W...
  8. 73's de Edd

    Geneva model M power supply

    As was implied, it's being full AC line input powered, thus no external " wall wart ", so you just need to mate up with the correct AC line connector at the end of that AC line power cord. Give us a close up photo of that AC receptacle mounted within the unit. ,
  9. 73's de Edd

    need some help repairing a Jamo SW 3015 active sub please

    Sir khalidlib . . . . . In using your mark up . . . . Top right corner at the power supply board, you see that it basically just develops a very STOUT +- 22VDC AMP supply and also your centrally designated + and -12 vdc to feed over to the "liddle-middle-board" at then it also exits down to...
  10. 73's de Edd

    degraded while stored?

    Sir glen . . . . . . . . . . . . . .( and that's SPECIFICALLY being 0411 . . . .NO others ) Here's the way that I look at it . . . . . If you were using cutting edge technology . . . .solid state lasers . . . . . at least there would potentially be demand and resultant stock depletion and...
  11. 73's de Edd

    Thermolysis coax cords keep breaking, how to fix?

    MME Cheryl . . . . . . Here's what I am seeing . . . . There is the shown coaxial connector that connects INTO the " mean machine " and then its being of an unspecified length until it goes into the BLACK hand piece. ( Any chance that hand piece is micro cracked / fractured ? ? ? ? ? . . . ...
  12. 73's de Edd

    power supply troubleshooting

    Sir ben_nexus In your photo submitted, your potential faulty Electrolytic caps units are typically going to be the two LARGE ones near the 4 screw terminals at the rear end. The gold stripe down the side is marking the negative terminal /lead of each unit.(Suspected as 2200 ufd @ 35VDC by...
  13. 73's de Edd

    High voltage boost converter help

    Referencing: DC High Voltage very low current . . . almost electrostatic rated . I'm seeing the spin source cup at far left top corner and its feed over made by tubing and the central target slab of Teflon /or/ Nylon /or/ HDPE /or/ Delrin that would seem to have a central internal...
  14. 73's de Edd

    Power supplies and exchanging boards

    SIR roughshawd . . . . . WHASSAMATTAHYOU ? . . . .your OCD kicking in . . . HARD . .. in its obsessive attention mode with no imparted relevance being given to the real situation at hand I suppose that if you send 10a through the processor boards on this it will probably fry them out! They...
  15. 73's de Edd

    Dead Roberts play 10

    See if page 21 might be of any use / applicable . https://www.manualslib.com/products/Roberts-Play-10-4130528.html
  16. 73's de Edd

    Canon Camera battery help

    Sir Baracas . . . Correct me on any mark up errors. You can see that bottom photo is telling you that the battery voltage is making it all the way across the board to those TP1 anf TP3 test points. You stopped short of telling us if the neg or positive then made it down to the black connector...
  17. 73's de Edd

    Power supplies and exchanging boards

    Yes . . .YES . . .YES . . . . you can either use separate complete power supply's for the required voltages. OR . . . . . use individual power transformers, to tie into the separate sections, to be able to use this existing power supply again. BUT its bordering on extremely impossible to get...
  18. 73's de Edd

    Transistor Help

    Sir Reddave101 . . . . . the new problem I have is that now I have put in the new transistors, I get no screen whatsoever on the amp let alone the tuner, so it doesn’t come on like before and then start dimming until cap C114 blows. Now it just doesn’t come on at all. Rgr Rgr on your two...
  19. 73's de Edd

    Problem with multimeter DT9205A

    We know that . . .that's understandable, BECAUSE the diode test function has BLOWN UP ancillary parts within it and 240mv is borderline of being able to light up even the lowest threshold of LED . . . the RED LED. Come back with the requested functionality and accuracy test of the voltmeter...
  20. 73's de Edd

    Transistor Help

    Sir Reddave 101 . . . . . OK . . .then . . . . now with your transistor to be tested . . . . placed on a surface for testing with its flattened side up. You take DVM meter and set to its DIODE test function, vice its alternative OHMS test function. Now in looking at your four sets of readings...
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