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PDP-8 Minis
PDP-8/I
PDP-8 (0)
PDP-8/A
PDP-8/E (3)
PDP-8/F
PDP-8/I
PDP-8/L
PDP-8/M (2)
PDP-8/S (0)
Reference
PDP-11 Minis
PDP-11/R20
PDP-11/10
PDP-11/20
PDP-11/R20
PDP-11/23
PDP-11/34
Reference
PDP-12 Minis
PDP-12 Front View
PDP-12
Reference
Calculators
Front View of HP-9100
HP-9100B
Monroe 630
Tektronix 909
Test Equipment
Front View of HP-3440
GR-1683
HP-3440
Marconi 2955B
Miscellaneous
Front View of IBM 360 Front Panel
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Wanted / Trade
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The PDP-11/R20 Minicomputer


Price in 1971: USD$13,900

(Full exhibit coming soon!) PDP-11/R20 S M L XL


R for Rare


No, the "R" doesn't really stand for "RARE", it stands for "Rugged". This was DEC's attempt at a ruggedized PDP-11. However, I have never seen another PDP-11/R20 anywhere else -- if you have one, please contact us!

Trade

While the PDP-11/R20 is a fascinating machine, it's not in the scope of my core collection. Therefore, I'd be willing to trade it and cash for a straight 8 (PDP-8, no suffix) or a PDP-8/S. Contact me to inquire; I'm pretty flexible (no, I'm not interested in selling it outright; it's worth more as trading material than as cash).

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Contact us This page was updated on Mon Jan 5 00:10:09 EST 2009 © 2000-2007 by Robert Krten.
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