[Boatanchors] GE Wirewound Resistor Info

[Glenn Little WB4UIV]

I have some GE Wirewound resistors in a cartridge format.
These look like very large cartridge fuses.
Some are marked M2R71 with a value and are 11.5" long and 1" dia.
Some are marked A150H with a resistance value and are 9.75" Long and 1" dia.
Does anyone have any data on these resistors, as to Voltage and Wattage?
I think the M2R71 is 225 Watts based on an advertisement from Surplus 
Sales of Nebraska.
Google has been no help.
These came from a broadcast transmitter.

Thanks
73
Glenn

-- 
-----------------------------------------------------------------------
Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIVwb4uiv at arrl.net     AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"