IRL is stronger the IRF has failed on me but is very common that is why I mentioned doubling them up ,IRFP250 is a monster but it will fit used once on a stubborn problem and still going a year later. Starburst sells P20N10 have had good results with it.
O well if it was easy everybody would do it. You have to enjoy a good puzzle to work on this stuff,as for it's value its all what it is worth to someone
Thing with Germanium diodes when they fail they tend to open rather than short so if you get some nasty coil voltage heading to the mpu they tend to open before they burn the board up. Pretty much any diode will work in its place the strobe rate is only 400 cycles per second but a rectifier will...
IRF540 is pretty common you can double them up for more current it gets a little crowded but it works. IRFP 250 works fit the centre lead thru the board the 2 outside solder on the top. Thing with mosfets is the gate current is barely a microamp the device turns on with a voltage so its very...
AX ,R and U relays are trouble get a schematic from Steve Young pinball resource instruction manual has Operating instructions[startup] before you hack up the harness .Found 2 many torn up harnesses
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