Teknotoyz
Well-known member
"Bionic" APB Triac board rebuild- Cheaper / Stronger!!
"Gentlemen, we can rebuild it, we have the technology, we have the capability to make the worlds first bionic Triac board. APB will be that game, better than it was before. Cheaper to rebuild, Stronger, less failure than before!"
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Just ordered parts from Mouser Electronics to modify the Triac board.
No longer will the old, expensive, weak, silver triac's be used.
I am planning to upgrade the triac (2N5756) to a modern beefier part number (MAC15SDG).
The original Triac had a 2.5 amp RMS current with a 25 amp surge (non-repetative!). Cost is ~$5 each
The new Triac will have a 15 amp RMS with a 120 amp surge! Cost is $1.49 each
Remember that a 60w bulb pulls about 0.5 amps, but inrush current on an incandescent lamp can be 12-15 times that of the steady state (7.5 amps on the high end). Keep in mind, that EVERY time the light bulb flashes, it has an inrush exceeding the RMS value of the original triac. No question why these fail over time.
Why am I doing this? Well, my triac board is defunct, I need to fix it, and honestly, this is cheaper to do.
I also want to confirm a Triac part # for fellow APB owners as I had a hard time finding information.
"Gentlemen, we can rebuild it, we have the technology, we have the capability to make the worlds first bionic Triac board. APB will be that game, better than it was before. Cheaper to rebuild, Stronger, less failure than before!"
=====================================================
Just ordered parts from Mouser Electronics to modify the Triac board.
No longer will the old, expensive, weak, silver triac's be used.
I am planning to upgrade the triac (2N5756) to a modern beefier part number (MAC15SDG).
The original Triac had a 2.5 amp RMS current with a 25 amp surge (non-repetative!). Cost is ~$5 each
The new Triac will have a 15 amp RMS with a 120 amp surge! Cost is $1.49 each
Remember that a 60w bulb pulls about 0.5 amps, but inrush current on an incandescent lamp can be 12-15 times that of the steady state (7.5 amps on the high end). Keep in mind, that EVERY time the light bulb flashes, it has an inrush exceeding the RMS value of the original triac. No question why these fail over time.
Why am I doing this? Well, my triac board is defunct, I need to fix it, and honestly, this is cheaper to do.
I also want to confirm a Triac part # for fellow APB owners as I had a hard time finding information.
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