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  1. 73's de Edd

    Signal meter salvage NHY6

    Sir tedstruk . . . . From your sourcing, this is what you might be expecting to find . . . .courtesy of one of Phaeron's units . . au Cairo. 73's de Edd .....
  2. 73's de Edd

    Re: Sanyo SF- P100 13 pins

    Clarification of : I have accumulated more than 200 pcs of this already. is that 200 Bose units or 200 of the TOTALLY WRONG laser diodes ? If you have both the technical expertise and mechanotronics disassembly / reassembly and precise alignment experience to be able to replace the CORRECT...
  3. 73's de Edd

    Meter recommendation

    Sir Sternwheeler . . . . You say . . . the magic and defining words as I have a weak recording channel. That osc is used on BOTH channels, and only in record mode , therefore no differentiation would be attributed to only one channel. Need the AKAI model number for any in depth analysis...
  4. 73's de Edd

    1980 Soviet Radio Cassette amplifier problem.

    Can you provide a 4khz sine for testing ?
  5. 73's de Edd

    Digital piano won't power ON

    Sir Alektron . . . .et al . . . Before getting that puppy all buttoned up, how about taking the DC voltage readings, both before and past the pair of two ohm * power resistors to see what voltage it normally is. Since you now have a 4.7 ohm* replacement, take the voltage reading across it...
  6. 73's de Edd

    schumacher se-5212a charger

    50 cents says you have it RIGHT !
  7. 73's de Edd

    1980 Soviet Radio Cassette amplifier problem.

    So you had C14 out of circuit and that stopped the radios audio flow thru the power amp. So the circuitry from the rotor of the volume control is now feeding your different audio test amplifier. That present test audio could now either be an FM or AM signal and my ears are hearing a compressed...
  8. 73's de Edd

    Component identification

    Sir RizenFenix . . . . . TO WIT . . . . . . You will be seeing a better replacement being used in this series in a power supply related function. As the YELLOW 68ufd @16VDC units in this Bac Mook.. KMET . . . . . significant price break at 10 units...
  9. 73's de Edd

    Newbie here need help

    Explain exactly how you are presently using that 220 VAC to 12VAC transformer at that HEFTY of a current rating, unless, possibly that transformer is being related to an UPS type of application to convert 12VDC on up to 220VAC . . . . . and you THEN want to use this newly built circuit to...
  10. 73's de Edd

    1980 Soviet Radio Cassette amplifier problem.

    Sir Richard9025 . . . . . Looking at post 45's schematic you show the " X " breaking connection and confirm that injection of audio into C14 produces flawless sound at higher sound levels. You also seem to infer that the radio signal at the volume center tap is also good when you feeding that...
  11. 73's de Edd

    No sound

    Sir jerry . . . . .beeeeeee NOT your typical grandads boombox, that you have there . . .more like a silver ? bottom flattened, bowling ball with a top handle. ZERO tech info is floating about on it in the world . . .even under its main Sugar Daddy . . . of ALBA, but it was probably even...
  12. 73's de Edd

    Is there a name for this type of motor ?

    Eyyyyyyyy Hombre . . . . . . ¿ Que Paaaaaaaaaaaaaaaaaasa ? Considering that yo MaMa's Hamilton Meach Bixer . . .ooops Lys-dexia kickin' 'n again . . . . Beach Mixer was the G series, and I see NO reason from deviation from a PROVEN workhouse model for decades . . . .until they started toying...
  13. 73's de Edd

    1980 Soviet Radio Cassette amplifier problem.

    Sir Richard 9025 . . . . . Here is the audio flow path starting at the tuner as RED arrows and then after the RADIO-TAPE switch, which I have now being "switched" to RADIO position, where the signal then proceeds as BLUE arrows.. Walk your good injected signal progressively backwards from...
  14. 73's de Edd

    Pioneer Spec 4 Amplifier part substitutions

    These latest units would be my choices for the matched POWER output sets . . . https://www.onsemi.com/pub/Collateral/MJ21193-D.PDF The others are quite easy to find as OEM.
  15. 73's de Edd

    Can these two instruments test the transistors on my printer PSU?

    What brand and model of printer . . . .WHAT BRAND AND MODEL . . . . OF PRINTER . . . . . .WHAT BRAND AND MODEL . . . . OF PRINTER . . . . . . ?
  16. 73's de Edd

    1980 Soviet Radio Cassette amplifier problem.

    Sir Richard9025 . . . . . Your ORANGE ( It reproduces as YELLOW on my monitor ) box area is being all passive tone and volume R-C components. Your simplest initial test might just be to switch the radio between AM broadcast band and FM band. Since, FM band uses VT11 transistor as its audio...
  17. 73's de Edd

    Replace variable capacitor with varicap

    Sir michael1978 . . . . . NO can do . . . . your C7 install shown will kill / block any required DC base bias from getting to Q1. With no RF experience . . . . . .I really-really-REALLY think that you should get this circuit operative with conventional L-C components in the tuned circuit...
  18. 73's de Edd

    1980 Soviet Radio Cassette amplifier problem.

    Sir Richard9025 . . . . . When you replotted the schematic, the very LAST time it showed one thing that I had not noticed before. But some parts are being drawn up better on the original snippet on post #27 , so I will be referencing to it. The thing of beauty with the power output...
  19. 73's de Edd

    Newbie here need help

    Sir Sum ting Wong . . . . . You say . . . I already tested the circuit I run it with a 200v supply and the there's no supply to the load and I put it with a 230v supply no supply to the load either. I was wondering if it is really working because I can't find a stable 220v supply even using...
  20. 73's de Edd

    SENCORE TF46 CAL

    Sir K4PI . . . . . . . Unfortunately the TF46 manual only gives you cryptic partial schematics or block diagrams. The grandfather unit was the TF 26 and its manual has ALL of the schematic, plus on late versions they placed a buffer / squarer two transistor, add on modification to the output...
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