DOS-73 card >512k?

[Chris Rende]

Is there a way to increase the amount of RAM on a 3B1/DOS-73 card
from 512k to 640k?

car.
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Christopher A. Rende           Central Cartage (Nixdorf/Pyramid/SysVR2/BSD4.3)
uunet!edsews!rphroy!trux!car   Multics,DTSS,Unix,Shortwave,Scanners,UnixPC/3B1
trux!car at uunet.uu.net          Minix 1.2,PC/XT,Mac+,TRS-80 Model I,1802 ELF
trux!ramecs!car     "I don't ever remember forgetting anything." - Chris Rende