Thought I would post an update here of my progress in recreating Don Lancaster's original TVT prototype: http://bradhodge.ca/blog/?cat=11
Visually I think it's pretty close. I just ordered the transformer from Signal Tranformer - the same 24-1A the original used, so I'm pretty keen to get that in. Unfortunately I did make a rookie mistake - building everything piecemeal (as parts came in) rather than in the specific manner and order suggested by the instructions. I'm hoping I can get the 'mainframe' board test done with the RF modulator circuitry in place. Really wouldn't want to take everything apart. On the plus side, if I did - I recently found some vintage blank 1973 PCB stock.. so I could etch new boards using the actual vintage material Don would have been using. Hrmmm.. tempting.. :) Brad
