1ajs
Experienced Member
been sitting in a closit not sure what system its for or what it is...
anyone know?
anyone know?
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Lou - N2MIY
Veteran Member
That's a pdp-11/73 processor
That's a pdp-11/73 processor
That's a Q-bus pdp 11/73 processor. The proper part number is M8192 (which is printed on the handle) or KDJ11-A. I know it well since I have one in here: http://www.vintage-computer.com/vcforum/album.php?albumid=54&attachmentid=2443. Your tagline says you have a heathkit H11, so you will appreciate the photo if you click on the link.....
I see the blue handle of some other MDB card at the edge of the picture. What other cards do you have?
Lou
That's a pdp-11/73 processor
That's a Q-bus pdp 11/73 processor. The proper part number is M8192 (which is printed on the handle) or KDJ11-A. I know it well since I have one in here: http://www.vintage-computer.com/vcforum/album.php?albumid=54&attachmentid=2443. Your tagline says you have a heathkit H11, so you will appreciate the photo if you click on the link.....
I see the blue handle of some other MDB card at the edge of the picture. What other cards do you have?
Lou
1ajs
Experienced Member
figured it belong to the h11 was not sure and yea i see the number your referring to missed it it's m8192
i've got 5 cards that were sitting in a closet not sure whats inside the h11 unit have not popped it open yet it was my dads equipment and i know very little about this gear but its always had me curious
i know this one is a Serial Interface card from reading the end sticker and looking some stuff up on google
not sure what the jumperd chip is all about but its come loose
thi one it says its a 16k x 16 memory WHA-11-16
the MDB card ur refering to says MLSI-MRV11-C on the card
and some micro technologies card
ever herd of these guy found them looking up the mdb card http://www.keyways.com/
i've got 5 cards that were sitting in a closet not sure whats inside the h11 unit have not popped it open yet it was my dads equipment and i know very little about this gear but its always had me curious
i know this one is a Serial Interface card from reading the end sticker and looking some stuff up on google
not sure what the jumperd chip is all about but its come loose
thi one it says its a 16k x 16 memory WHA-11-16
the MDB card ur refering to says MLSI-MRV11-C on the card
and some micro technologies card
ever herd of these guy found them looking up the mdb card http://www.keyways.com/
Last edited:
Lou - N2MIY
Veteran Member
In the order you posted the picture, the items are:
A Heathkit serial (RS232) interface (SLU in dec parlance)
A Heathkit 16kW memory
An MDB bootstrap card (the bootstraps are on the eproms. looks like an MDB clone of dec M8048 )
An MDB MFM hard disk controller (looks like a dual-height clone of dec RQDX2)
I see an MFM hard disk in the closet. It must have went with the MDB MQDX2 controller.
Good stuff in that closet there. I see a Motorola land-mobile radio, a dec LA50 printer, the heathkit papertape reader for the H11 and some other heathkit looking terminal (but probably not just a terminal because I see the dual floppy drive next to it.)
What's the B&W photo attached to the front of the H11?
Lou
A Heathkit serial (RS232) interface (SLU in dec parlance)
A Heathkit 16kW memory
An MDB bootstrap card (the bootstraps are on the eproms. looks like an MDB clone of dec M8048 )
An MDB MFM hard disk controller (looks like a dual-height clone of dec RQDX2)
I see an MFM hard disk in the closet. It must have went with the MDB MQDX2 controller.
Good stuff in that closet there. I see a Motorola land-mobile radio, a dec LA50 printer, the heathkit papertape reader for the H11 and some other heathkit looking terminal (but probably not just a terminal because I see the dual floppy drive next to it.)
What's the B&W photo attached to the front of the H11?
Lou
1ajs
Experienced Member
the mobile phone is still used from time to time when out at the cabin where theres no cell service har har har nearest cell tower is 300km's away
the terminal is a h89 with some mods to it... such as a 3 1/2 floppy drive and a 5 1/4 theres a temp senor and a light sensor hooked up to it i don't know much ells about it other then my memory expansion card for it has a bad chip thats esay to replace and i am going to have to pick one up for it so i can get 128k of ram instead of 64k all i know about the system is the little bit i have been told by my father who dianosed the burnt out memory chip 8yrs ago witch is when i shelved it at the time cause back then i couldn't find any chips online.
i've got manuals and such for these macheans i need to sit down and et them all laid out and test them and see if my floppies are any good anymore
interestin a hard drive controller card that makes me drool i've got some mfm drives kicking around from some old systems i have but not any that came from the heathkit the one ur seein came out of a xerox ibm clone machean had a 286 in it i think i kinda rescued that thing from a pile of computers to be recyled........
bootstrap card??? industriail automation thing???
serial is serial very handy thing to have specially a spare
poped the top off the h11 and found 3 more cards
theres another h11-5 searial card a m8044 DB and a h11-2 Parallel Interface for the h10 hook up
i'm asumin the m8044 is the processor
it says: ....but the really impressive stuff is in the back room
i dunno if the h77 even works i don't think its been hooked up in over 20yrs if not longer i know the h89 works had it running a week or so ago
the terminal is a h89 with some mods to it... such as a 3 1/2 floppy drive and a 5 1/4 theres a temp senor and a light sensor hooked up to it i don't know much ells about it other then my memory expansion card for it has a bad chip thats esay to replace and i am going to have to pick one up for it so i can get 128k of ram instead of 64k all i know about the system is the little bit i have been told by my father who dianosed the burnt out memory chip 8yrs ago witch is when i shelved it at the time cause back then i couldn't find any chips online.
i've got manuals and such for these macheans i need to sit down and et them all laid out and test them and see if my floppies are any good anymore
interestin a hard drive controller card that makes me drool i've got some mfm drives kicking around from some old systems i have but not any that came from the heathkit the one ur seein came out of a xerox ibm clone machean had a 286 in it i think i kinda rescued that thing from a pile of computers to be recyled........
bootstrap card??? industriail automation thing???
serial is serial very handy thing to have specially a spare
poped the top off the h11 and found 3 more cards
theres another h11-5 searial card a m8044 DB and a h11-2 Parallel Interface for the h10 hook up
i'm asumin the m8044 is the processor
it says: ....but the really impressive stuff is in the back room
i dunno if the h77 even works i don't think its been hooked up in over 20yrs if not longer i know the h89 works had it running a week or so ago
vrs42
Veteran Member
Eagle-CAD drawings for H11 serial controller
Eagle-CAD drawings for H11 serial controller
http://www.so-much-stuff.com/pdp8/cadlib.html.
You can scroll the "boards and schematics" region down to the H11-5, and
download a .zip of the Eagle files. If you need the PDF, you can also get
those by changing the URL which that sends you to from
http://www.so-much-stuff.com/pdp8/cad/projects/H11-5/h11-5.zip
to
http://www.so-much-stuff.com/pdp8/cad/projects/H11-5/h11-5pdf.zip
You can also get to much of my other work, such as it is, from the cadlib page.
Vince
Eagle-CAD drawings for H11 serial controller
I have uploaded a set of H11-5 drawings in Eagle-CAD format toi know this one is a Serial Interface card from reading the end sticker and looking some stuff up on google
not sure what the jumperd chip is all about but its come loose
http://www.so-much-stuff.com/pdp8/cadlib.html.
You can scroll the "boards and schematics" region down to the H11-5, and
download a .zip of the Eagle files. If you need the PDF, you can also get
those by changing the URL which that sends you to from
http://www.so-much-stuff.com/pdp8/cad/projects/H11-5/h11-5.zip
to
http://www.so-much-stuff.com/pdp8/cad/projects/H11-5/h11-5pdf.zip
You can also get to much of my other work, such as it is, from the cadlib page.
Vince