Just started considering this so I'm re-animating this thread for T5.10.
The TL Stage Effects Table (one of a bazillion throughout the rules) in Bk 2, pg. 226 is different from most in that it includes a ThingMaker Mass adjustment column, which I think might be appropriate for Robots. So, Stage can adjust the Cost and Units required for components. (Units being volume, and indirectly, Mass)
Interestingly, this ThingMaker Mass adjustment due to Stage does NOT appear anywhere in the ThingMaker rules. In ThingMaker, this is left to the designer as hand-wavium.
Base technologies for robot components can be gleaned from Bk 2, pages 231, 250, and 263. Photonic and Fluidic Brain TL are taken from the model 1 computers of those types on pg. 250.
TL
9 Electronic Brain
11 Semi-Organic Clone Brain, Fusion Plus
12 Photonic Brain, Positronic Brain, Personality Recording And Editing
13 Fluidic Brain, Robots, Robot Solid State Structural Muscle. Cloning. Forced Growth. Wafer Technology
14 Self-Aware, Geneering
15
16 Artificial Intelligence
So the base TL for Robots is TL 13 with components not mentioned adjusted via Stage from that base. Components explicitly mentioned would be adjusted via Stage from their own base using the Cost and Mass adjustments from pg. 226.
Whadya think?