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(Topic ID: 191406)

Coil difference question: 24-900 vs 26-1500


By EEE

3 years ago



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  • 7 posts
  • 5 Pinsiders participating
  • Latest reply 3 years ago by cfh
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#1 3 years ago

I had one of the diverter gate coils (26-1500) on an F14 fail, and I since I have a new 24-900 coil in my parts box, I am looking for suggestions on whether I can use a 24-900 in its place. I would add a diode.

20170614_145429.jpeg

#2 3 years ago

hard to say without a resistance comparison since the winding gauge is different.

you probably want the right coil here. a locked on / shorted f-14 shorted diverted coil is known to blow up the special solenoid driver section.

#3 3 years ago

The 26-1500 is 13.6 ohms the 24-900 is 5.3 ohms I wouldn't use the 24-900 it's a lot stronger and not intended to be eneregized the length of time diverter coils are held.

#4 3 years ago

you need the correct coil. the 24-900 is way too low resistance. you'll smoke the coil and probably the driver transistor too.

#5 3 years ago

I hear the advice and I will not use the 24-900, thanks.

Is a 26-1200 an ok substitute for the short term?

#6 3 years ago

The 26-1200 would probably be fine. If you have a 1 ohm, 5W cement resistor I would add that in series (I know, I know....not a part you would commonly stock, but they can be found on a lot of classic Stern 3 and 4 flipper games if you have parts stashes.)

#7 3 years ago

i've used 26-1200 in a pinch. This same situation exists on Star Trek NG with the under playfield diverts, and 26-1200 does work. Would be better to have a 26-1500, but the resistance between the two is about 10% (acceptable.)

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