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Forum BK1103A Switch Help
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  • bk1103a
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Related

BK1103A Switch Help

kas.lewis
kas.lewis over 6 years ago

I recently bought a second hand function generator and after checking it out it all appears to work well except for some of the switches. I was therefore hoping someone may be able to help me identify the make and model of the used switches. If I can replace them then I will have a perfectly good function generator, well minus the calibration (1993...)

 

image

This is a picture of the switch I 'm looking to replace. It's a six pin switch and appears that the upper and lower center are the two poles and the outer terminals are the four throws.

 

image

The function generator in question, awaiting its repairs.

 

Thanks

Kas

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Top Replies

  • mcb1
    mcb1 over 6 years ago +5
    I'm wondering if a good clean and lube won't bring back the switches to their former glory. It's entirely likely that the contacts that were uncovered have suffered from oxidation, and with cleaning and…
  • mcb1
    mcb1 over 6 years ago in reply to kas.lewis +3
    kas.lewis From what I recall of these switches, the rear is open. If you can desolder them from the board, you have some other options, but I think you can try the squirt the heck out of them first. As…
  • korn
    korn over 6 years ago +3
    for guitar amps I like to use a cleaner that clearly states "leaves no residue" to flood the switches and controls. then work them out, clicking or turning many times.. then give a second wash and a blast…
Parents
  • Gough Lui
    Gough Lui over 6 years ago

    kas.lewis - I can't find an exact replacement - but going through my local element14 site, there seems to be a few "compatible" looking candidates (minus the support legs). Suggest you verify the voltage/current requirements, and distance between button flange and PCB pins, and footprint of the switch to ensure it can fit:

    • https://au.element14.com/c-k-components/f2uee/switch-dpdt-0-5a-125vac-solder/dp/2320013?st=dpdt%20switch
    • https://au.element14.com/e-switch/pbh2ueenagx/switch-pushbutton-dpdt-100ma-30vdc/dp/2843805
    • https://au.element14.com/e-switch/pbh2uoanagx/switch-pushbutton-dpdt-100ma-30vdc/dp/2843806
    • https://au.element14.com/c-k-components/pn22lena03qe/switch-push-dpdt/dp/2435343?st=dpdt%20switch

     

    Your local suppliers may have a bigger variety of DPDT push-button solder-type switches, and there may be a chance of finding an exact replacement.

     

    - Gough

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  • Gough Lui
    Gough Lui over 6 years ago

    kas.lewis - I can't find an exact replacement - but going through my local element14 site, there seems to be a few "compatible" looking candidates (minus the support legs). Suggest you verify the voltage/current requirements, and distance between button flange and PCB pins, and footprint of the switch to ensure it can fit:

    • https://au.element14.com/c-k-components/f2uee/switch-dpdt-0-5a-125vac-solder/dp/2320013?st=dpdt%20switch
    • https://au.element14.com/e-switch/pbh2ueenagx/switch-pushbutton-dpdt-100ma-30vdc/dp/2843805
    • https://au.element14.com/e-switch/pbh2uoanagx/switch-pushbutton-dpdt-100ma-30vdc/dp/2843806
    • https://au.element14.com/c-k-components/pn22lena03qe/switch-push-dpdt/dp/2435343?st=dpdt%20switch

     

    Your local suppliers may have a bigger variety of DPDT push-button solder-type switches, and there may be a chance of finding an exact replacement.

     

    - Gough

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