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  1. 73's de Edd

    Non existent jack adapter

    Sir Ferrino . . . . . I have a good feeling that you are not going to want a machined aluminum housing and cross diamond milled finger grips and gold plating . . . . . . . at $56 a copy. But I did see some right angle plastics here that only had the 3.5 male mono, BUT there was access room to...
  2. 73's de Edd

    Comedy Thread

  3. 73's de Edd

    What is this? 15A Power module?

    Sir ARMANDO I know for a fact,what you have yourself there, is a compact , all self contained, potted and shielded power supply module. The input spec is 105—125VAC input. I assume that you don’t have the complete system that this control board belongs to . . . . and just having this one...
  4. 73's de Edd

    KLH 100 table radio manual

    Sir Steve Klebaur . . . . . . . . . .you say . . . . Hey, de Edd, I can most likely figure things out. But I just bought this nice radio on ebay, and I'd like to have the manual just because. I only listen to two fm stations, and I prefer to wake to an old fashion alarm. Why do you want to...
  5. 73's de Edd

    KLH 100 table radio manual

    Sir Steve Klebaur . . . . . Assuredly . . . . . you must question how to do the units tuner presets or how to decipher the entry sequence for all of the alarm control functions . . . right ? BTW . . . . .are you right handed or left handed ? 73’s de Edd
  6. 73's de Edd

    Slotted optical switch

    Sir matty matt tmatty . . . . . Back at my post one . . . . . at that time, I had ZERO idea of WHAT was wanting to be accomplished. I just knew that the circuit I posted would positively get you introduced to the basic circuit familiarity to let you expand upon its basics. After seeing the...
  7. 73's de Edd

    Yamaha psr e403 low sound output from speakers

    Sir samuel phillips . . . . . OK on the power supply medium now. You indicate that you were finding only 6VDC as the main power input to the POWER amp IC551 at its pin 5. Ahhhh haaaa . . . . they mis labeled the power pin on that block diagram # 4 is the correct one instead of their marked #...
  8. 73's de Edd

    Slotted optical switch

    Sir matty matt tmatty . . . . ...( hmmmmmmmmm . . . . .now ? did I fully get all of the alliterations of Matt in ? ) Try this known circuitry to initially get your unit working. Use “ Diode test mode” of a DVM to locate the infrared diode half / section. It will be showing the junction...
  9. 73's de Edd

    Yamaha psr e403 low sound output from speakers

    Sir samuel phillips . . . . . BEEP . . . . .BEEP . . . . .BEEP .. . . . . RED flag going up. Look to the right and the DC power input, which shows this unit having an option of using 6 D cells in series to get 9VDC as the power source OR the option of use of a 12VDC adapter which should...
  10. 73's de Edd

    Yamaha psr e403 low sound output from speakers

    Sir samuel phillips . . . . . Since you now say that full familiarity with your equipment’s normalcy in the past, now confirms that the present volume is 1/2 or less than it used to be, therefore you remember that level as a reference of its prior capabilities. I just prepped up the block...
  11. 73's de Edd

    Not really a repair, but some help going in the right direction appreciated

  12. 73's de Edd

    Coby TV tftv1514 skip channels restore.

    https://www.manualslib.com/manual/29501/Coby-Tftv1525.html?page=17#manual
  13. 73's de Edd

    Power resistor help

    Messr HectorP . . . . . Looks like it might have its LIKE companion just behind it, and with them serving as emitter resistors on the amps power audio output stage. Since that is such a low value of resistor to be reading, a wise consideration would be to clean your probe tips and rotate the...
  14. 73's de Edd

    Ceramic filter pinout and help with a 455khz BFO

    Sir Richard9025 There would be two uses for a BFO . . . one would be for the use of the reception of upper and lower SSB VOICE communications . The other would be for the reception of code signals .... . .-.. .-.. --- --- ---. If the former, can you tolerate the audio rate...
  15. 73's de Edd

    Identifying Component - SATA Drive Bay

    Sir davies2066 . . . . . Taking your last forthcoming info and my having “drewed” in your +12 and +5 lines, upwardly from the Drain 1 and Drain 2, to the top of the page. It then seems that the device perfectly fits the function of performing the +12 and +5 line voltage buss switching. You...
  16. 73's de Edd

    Call or Signal Box for Warehouse

    Pull out yore doorbell , lite "bub", battery(ies) and a 'tousand feets of "war" . . . . . 73's de Edd
  17. 73's de Edd

    Bose AWRC1G wave radio

    Sir kempga . . . . . Me thinks that the mentioned resistance testing is to see if there is continuity between the F connection shell and the central pin connection going on into the internal FM tuner . THAT IS . . . if there is NO series capacitor being involved in its circuitry design. My...
  18. 73's de Edd

    Identifying Component - SATA Drive Bay

    Sir mrdavies2066 . . . . . Yer fotie-grafs weren't defining enufs to let me pick out case/ pin indexing for its pin 1. But looking at the specific hea-vee foil paths used on some of its connections . . . . . Good probability of it being one of Alfa Omegas’ AO4801 dual FET's. With that...
  19. 73's de Edd

    Fluke Multimeter

    Sir PeteVee . . . . . I just noticed that my 24" crystal ball was throbbing in intensity as I was reading . . . . Now if there is a good possibility that you are mostly dealing with tube amplifiers the have very high vaues of resistors . If they ended up shunting connections tied into that...
  20. 73's de Edd

    Does this power supply seem safe

    Sir Sander Busch . . . . . Well . . .since you done spents your hard earned munneys . . . and bought the farm. Why not see what you actually have now ? What I am seeing there is the AC line power coming in thru the two red leads and with one side thru a fuse and then going into a small FWB...
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