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  1. 73's de Edd

    Need help IDing board

    Sir Jacob2017. . . . . . . . What're ye doing . . . . trolling ye olde interly-net . . . . fullly in hopes of finding info on that circa 1993-1995 Allen Bradley AB6481-8 controller board, . with high aspirations of pie in the sky dreams on the hawking of it on e-bay? If it were mine, I...
  2. 73's de Edd

    Brig 001 amp: Left audio channel allways strangely quits working after some minutes

    Sir martin0507 . . . . . . . . Soooooooo . . . . . it looks that this is going to be a multi national effort, with the products internal views and layout, initially being provided by a French link. Then, with our Russkie schematic being provided by compliments of a Russian ham . . . . along...
  3. 73's de Edd

    Brig 001 amp: Left audio channel allways strangely quits working after some minutes

    I think that I see a headphone jack on the front of the unit, why don't you wait until the unit goes off and see if both channels are present on the headphone or not. That would then let us know how early the stage is being, that the trouble is occurring in . Also if the top cover is off the...
  4. 73's de Edd

    Audio Circuit too sensitive

    Sir Diggar. . . . . . . . CONFIRMED . . . . Newer potentiometers will usually be marked with an "A" for logarithmic taper.(for volume control use ) or a "B" for linear taper. And we can see that mini unit which you show is being a B100K LINEAR taper. . Changing to an audio / A taper will...
  5. 73's de Edd

    Restoring a Regal Do-Wa-Diddy by fOXX

    Sir tedstruck. . . . . . . . Aaaaaaaaaa Haaaaaaaaa this one is being a bit different tnan the first two schematic suppositions that you made. Y ou still do not seem to fathom the DPST switch connections interfacing. Where you have assigned 123456 . . . . sub in my ABCDEF as being the same...
  6. 73's de Edd

    Another one Tek 2235 power supply problem

    Sir georgegr79 . . . . . . . . I think that you are grasping for straws and / or barking up the wrong tree, those 4 diodes of the +/- 8.6 volt supply needed testing with one lead each out of circuit . . . . which you did . . . .and they passed, with good junctions . Tell me what test...
  7. 73's de Edd

    Need Help with oven control board transformer

    Sir wuoshi103 . . . . . . . . That testing that you just did confirmed that all is well from the AC crows foot, right up to the L1 and N connector that are right beside the Power Transformer. Now you just need to concentrate on the few inches between the L1 and N blade connector and the...
  8. 73's de Edd

    Need Help with oven control board transformer

    Sir wuoshi103 . . . . . . . . Very important . . . . DId you ever do a no power applied test and confirm that there was ~ 15 - 20 0hms of resistance between the transformers primary winding , which I drew in on the Post # 9 reference drawing,. and if so, you should also read it again when...
  9. 73's de Edd

    Anyone ever build a DC to AC inverter ? Needs to run on 32v DC

    Another consideration . . . .of potential undesirability, which you can ascertain, is if the physically linear positioned LEDs puts out a STRIP of light . . . .sort of undesirable. Or if the combination of the individual LEDs are individually offset to produce a tight square pattern thereby...
  10. 73's de Edd

    Anyone ever build a DC to AC inverter ? Needs to run on 32v DC

    Unplug all loads and then let the lamp be the FIRST unit added and 10 seconds to fully warm up . . . then add the other 2 loads to see if it will run all of hem. With what items you have given as loads seems like 300w is met or exceeded.
  11. 73's de Edd

    Need Help with oven control board transformer

    . Sir wuoshi1031 . . . . . . . . Consulting your wiring diagram for the oven portion . . . indeed one 120 V leg of the AC power . . . L1 and N . . . . . is fed to the power transformer . Pull the crowfoot AC power plug and ohmically test the GREEN arrow path for about 15-20 ohms for the...
  12. 73's de Edd

    Help - ceramic disc capacitor

    Definitely replace it . . . . it has been " far" damaged on one side.
  13. 73's de Edd

    Help - ceramic disc capacitor

    Sir Bruce Long . . . . Just now caught, that the other pic showed the spec end of that cap . . .with its labelling. That verifies a 275V rating at 0.1 ufd and that is a X2 safety capacitor, being directly across AC line voltage. That type of safety requirement spec . . .deters away from you...
  14. 73's de Edd

    Repair JoeMeek Three Q Compressor

    Sir Aaron . . . . . It seems to have been good enought to make me question the overall diameter of the pot that I initially specified . . . . since I was working blind, by not having seen your pic yet.. It might actually have been a diameter a wee bit smaller . . .hopefully you measured the...
  15. 73's de Edd

    Help - ceramic disc capacitor

    Sir Bruce Long . . . . As others have said . . . .Those are Ferrite based RFI / EMI suppression chokes you can see the wire holes for the lacing of its wire turns through them. They should have a 1000% probability of still being totally intact and functionable. The whole board needs a good...
  16. 73's de Edd

    Need Help with oven control board transformer

    . Sir wuoshi1031 . . . . . . . . I have yet to see that backside / foil side of that board. Your L1 and L2 AC line hot connectors look a bit darkened close to the board proper. On the foil side of the board, you might find some high current carrying connection that has cratered out and is...
  17. 73's de Edd

    Question on schematic reading

    Sir tedstruk . . . . . . . . Assuredly this question is being related to your other posting on the Foxx Wah Box. This switch is needed to either utilize the WAH circuitry or to bypass it. This switch would be a Double Pole Double Throw type. The referencing is showing it physically and its...
  18. 73's de Edd

    Need Help with oven control board transformer

    Sir wuoshi1031 . . . . . . . . Can you sniff right at the windings of that power transformer and confirm a strong odor. I am expecting the primary of tha unit to have an open thermal fuse and it is placed so that it is pressed right up against the core and its windings . . . . its basically...
  19. 73's de Edd

    Repair JoeMeek Three Q Compressor

    Also it has pins that insert into the board and not the other style. The pins are still in the board. Would the best way to remove that to be to De-solder? I am assuming yes, but dont know for sure. LIBERAL use of rosin flux ON the joints and TO the heated and applied solder wick to absorb...
  20. 73's de Edd

    Can someone ID these connectors?

    Item 1 . . . . . . . .Dual female BNC splice connector Item 2 . . . . . . . . RG59 male crimp type connector Item 3 . . . . . . . . RG59 male connector . . .used with a separate crimp ring (One is loose in your #4 collection) Item 4 . . . . . . . . RG59 male push on connector . . .with...
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