DEC VT100 vs. VT102 - what differences are there?

[e.stiebler]

Tim Shoppa wrote:
> The fact that the VT-100 has essentially an "expansion slot" in it made
> some aftermarket upgrades available for it. Remeber the "Retrographics"
> upgrade? It let it emulate a Tek 4014 type graphics terminal.

Yes, have one of those.
Still looking for the one, made by selenar (?) we used at our office.
But we also had to switch the tube to a slower phosphor ...