I have been taking inventory of the boot ROMS on the M9312 modules in several of the PDP-11's in the great haul. In the pile of documents there is an older manual for the 9312 (1978 copyright, purple/maroon cover.) Fine. I was able to determine what's what re this subject and their respective boot devices (RL01, RK07, etc.) However, I need help identifying this one found in my 11/34A: 767A9. Need the charts/boot device type for this one which show the same type data as I see in my older 9312 manual. Also, in the 11/24 I found a different E20 ROM (the console/diagnostic ROM). Its number is 774F1. The number found on all the other 9312 E20 ROMS is 248F1. Now, is this 774F1 specific to the 11/24 only? Or, is it specific to any Unibus -11/xx which has no programmers console attached to the front of the machine (the /24 just has a few switches on the front panel)? The 11/34A I'm keeping and the other two 11/34x BA11's either have, or have evidence of once having, a programmer's console attached which could be a hint that the 248F1 is simply the E20 ROM just for 11/34x machines w/prgmrs console. Thanks for helping me sort out this detail. BTW, that URL Kees Stravers posted here per my query has the most VAX 11/730 info I have found yet. It has some great info to help me get going on my uVAX II which also came to me in that haul. Again: http://vaxarchive.ml.org . Thanks Kees. I'm still looking for more 11/730 info everybody (so is Kees). Thanks for the help. --Chris -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA Member of Antique Wireless Association URL: http://www.ggw.org/freenet/a/awa/