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MEXICOWANDERER's avatar
Dec 31, 2017

Finally Found An Image Of My Rectifier Diodes

Unable to post images so this will do.

Weight 2.10 pounds

Amperes 1,270

Peak Inverse Voltage 1,675

The braided leads are 2/0 cable.

The terminal hole is .500"

The stud diameter is 15/16"

1-9/16" across the nut's flats.

Weight of copper in each polarity heat sink 14.0+ lbs. The sheet laminations were soldered with 100% silver. I used around 2.3 pounds for six heat sinks.

Size of both polarity heat sinks -- two microwave ovens, stacked.

But they have an easy life. The charger is only 510 amperes, the Niehoff alternator is 400 amps, and the Delco 50DN alternator a piddly 385 (all at 28 volts).

  • You need to find you an old welding shop graveyard. That's similar to what was in the old 300 amp Tombstone Lincolns.
  • Three R's

    Restroom

    Reading

    Recreation

    A solid start to the "What If?" syndrome.

    Grobble Snabble
    The sources for really inexpensive DO5 stud rectifiers have dried up. 70-amp 200PIV

    The salvation of the old Harbor Freight 10-amp charger...

    Ratz!
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Hey.... I have an All ELectronics Catalog.. Good place for folks like us to spend all our excess cash... :)
  • Many many of them. Built from scratch remote alternator rectifiers. It's a bit of info in the form of an image to let folks know if something does not exist it can be built. Indeed, All Electronics, a surplus store in Southern California had 19" long heat sinks that could take three of these rectifiers, for half of a three phase rectifier bridge.
    THE OBJECT: There is no need whatsoever to tolerate marginal designs when it comes to rectifiers.
    THERE IS A PARADE OF SMALLER RECTIFIERS. From these monsters down to 150 ampere ones a tenth their size.
  • Seems out of context. Is there a thread this should reference?

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