Search results

  1. B

    Snubber circuit

    Why you need to change the system at all is beyond me, however , look for "transistor assist ignition" if you must. There were commercial systems introduced as more of a novelty if anything, back in the 60's and 70's era, most came in projects in electronic magazines. Claim was to save the...
  2. B

    Mini Quadcopter As a web camera or FPV

    Have you read and understood the manual...?? https://www.bhphotovideo.com/lit_files/134120.pdf
  3. B

    old car stereo LCD backlight

    Bit off topic I know but.....Ooops....double negative...so you DO have some left then...??? As for the radio, same as I said before but you might try gving all the selector switches a good drink of contact cleaner of your choice.(I use CRC or WD40) A radio this age is bound to have dodgy...
  4. B

    E-Bike front light Power supply question

    This is a bit confusing. Manufacturer says above quote.........So you are NOT running from the motor output as recommended initially........ Perhaps they are confused as to what you are up to as well. Load will only draw what it needs and the circuit dictates. Also, did you read the bit where...
  5. B

    12VDC to 230VAC Inverter Repair

    Time for a new one.................
  6. B

    Need builder for small power supply

    They may "run" on 4.5v but they don't "draw 4.5v"...they will draw x-amount of current................. So run these devices from two buck regulators. Plenty available online and relatively cheap. You will need to know the current rating of each device to select the appropriate buck regulator...
  7. B

    old car stereo LCD backlight

    The latter would be normal manufacturing process being from auto which is subject to an amount of vibration. The LED itself could be as many are in LCD displays, located at one end of the readout. Leds such as this rarely fail and it may be connection problems given the number of vias visible on...
  8. B

    Need builder for small power supply

    AS above but start thing LiPo cell like in r/c gear................
  9. B

    PIR hc sr501 sensitivity

    According to this and the spec sheet (DOH!!!!!) ................ CW to increase.:rolleyes:
  10. B

    Project advice ("pass through" charger/UPS)

    I can't see any difference.....
  11. B

    Inject dc into output side of laptop power supply?

    Looked up power adaptors for the type you quote and they all came back with standard run-of-the-mill dc plug. Maybe you need to post more detail, perhaps a photo or two.
  12. B

    Wireless momentary switch

    The odd gazillion or two online such as below....... https://www.ebay.com.au/itm/394329347973
  13. B

    BOSE Solo 10 Help - No Power Up - Pics + PCB Part List

    Maybe...but expecting an answer from the beyond is a bit of a stretch.
  14. B

    240VAC Power Output on Circuit Board

    Show where you have power in and out on the board or better still, a hand drawn circuit of what connections you have and where you are measuring to obtain your readings. i.e. show what you connect both meter probes to...... almost impossible to follow your description as it has become just a rant.
  15. B

    Canon i865 inkjet printer not powering up after refurbished print head installed

    Haven't read the warnings Canon and the like put out about their printers and after market parts then..........??? Put it this way, the programming in the printer will know when a different head is installed and most likely has issued a shut-down-forever command. Hens teeth also come to mind if...
  16. B

    74LS160 COUNTER - 0 to 999999

    Google.....
  17. B

    Total Electronics Newbie with an idea, LOL

    ..................................................And that would be...??????? Note that most things have already been thought of...........some 100 years ago.
  18. B

    Step up/Step Down Transformer Setup to Run 1.5 Ton AC For Electric Consumption

    Internet is full of bulls***t videos. Trick is to have enough experience /sense to know what is what. In this instance, yes, crap.
  19. B

    Identifying Socket 7 Mobo Inductor Coil

    Looks like it might have been dropped (just a wild guess)
  20. B

    BOSE Solo 10 Help - No Power Up - Pics + PCB Part List

    Back in the past....post is WAYYYY OLD......
View older results
Top