Finally Found An Image Of My Rectifier Diodes

[MEXICOWANDERER]

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).

[Joe417]

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

[MEXICOWANDERER]

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]

Hey.... I have an All ELectronics Catalog.. Good place for folks like us to spend all our excess cash... 🙂

[MEXICOWANDERER]

.78 @ 272 AMPERES

[Roadpilot]

But what is the forward voltage drop?

[MEXICOWANDERER]

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.

[Jim]

Seems out of context. Is there a thread this should reference?