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  1. bushtech

    Magnifying light voltages

    @bertus Please let me know if this is better quality. Have corrected the diodes and added some values
  2. bushtech

    Magnifying light voltages

    You're an hour behind me. Better than dealing with somebody in the states
  3. bushtech

    Magnifying light voltages

    @Martaine2005 It would be great to have a set of definitive voltages on the 2 transistors to work from.
  4. bushtech

    Magnifying light voltages

    Thanks a mil Bertus
  5. bushtech

    Magnifying light voltages

    Is the one you are checking there a working one so I can shoot for those readings?
  6. bushtech

    Magnifying light voltages

    Heh :D Thats me and you
  7. bushtech

    Magnifying light voltages

    Hi Martin Note: 1. Running PCB through dim bulb 2. No fluorescent bulb attached 3. No autoranging meter Agree 315V across C2 Agree voltages look quite strange: Q1 Q2 Martin Dries Martin...
  8. bushtech

    Magnifying light voltages

    Hi Martin How much for your crystal ball? I had to pull the diode to see the DB3 Agree with your 0 both ways on DB3 Diode. Diode on the other side beeps like a short with a reading of 13 both ways. (could be a zener?)
  9. bushtech

    Magnifying light voltages

    Measured voltages on the 2 x MJE13003 Bipolar NPN transistors. All voltages in relation to neg of big cap. Q2= 135/313/136V Q1= 0/135/0V
  10. bushtech

    Magnifying light voltages

    315V on the big 10μf cap so bridge rectifier diode set OK
  11. bushtech

    Magnifying light voltages

  12. bushtech

    Magnifying light voltages

    Thanks Bertus - between gray and brown = valuable information In the region of 5Ω?That's what I'm reading between the gray/blue sets. So that means I have a problem on the board itself. Busy tracing out the design, might help
  13. bushtech

    Magnifying light voltages

    Thanks a mil Bluejets. Checked for continuity between the 2 brown and the 2 grey wires. No continuity
  14. bushtech

    Magnifying light voltages

    I have one of these magnifying lights on my desk which has packed up. There is a 4pin plug which connects the round fluorescent tube. I am in South Africa 230VAC mains 50Hz. The 4pin plug has two grey wires and two brown wires. What voltages should I be seeing on those pins? And will I only...
  15. bushtech

    JVA Fence energiser component ID

    Thanks St Edd. I will check it out on Monday when I'll see it again
  16. bushtech

    JVA Fence energiser component ID

    Thanks a mil Bertus, much appreciated
  17. bushtech

    JVA Fence energiser component ID

    I've got a component that I'm not sure of. Either a cap or a MOV It's called C54 on the PCB but hmmm 474J?? A photo of the board,component has been ringed. Would appreciate some certainty here Thanks
  18. bushtech

    Gas(LPG) geyser help

    Thank you St Edd. On opening a hot water tap unit responds by opening the gas and igniters supply spark, unit fires up and supplies hot water. Will continue like this until hot water tap closed. Currently I get the sparks but the gas supply not actuated, so no flame on
  19. bushtech

    Gas(LPG) geyser help

    @73's de Edd I have talked to you please
  20. bushtech

    Old timer trying to regain memory

    Me hypocondriac??? Never!
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