spent some minutes to think about what to do with the tube pins after cleaning them.
there is a nice tool:
you can use it to apply a layer of 24 karat gold on the pins. it uses a liquid and two batteries, it's an electrochemical (galvanic) process identical to an industrial process, the result would be a gold pin tube!
due to my limited english language skills i was only able to post a german source (sorry for that) but should be no problem to find something similar after knowing the idea.
a short calculation: :-)
pin cleaning - 5 minutes
visual check and additional cleaning - 1 minute
apply gold layer - 3 minutes
quality control - 1 minute
10 minutes x 7 pins - 70 minutes
complete set 4 tubes plus functional check - listening - 295 minutes
reduced time (learning process, optimization, loss of quality, tired, what a boring job, don't want to spend that much time, it's ok as it is ...) - 4 hours
(for me) - approx. 8 complete sets - 32 hours i.e. 4 working days
need a holiday for that or we convert our tu-05 listening and tube rolling party into a tube pin cleaning party, if we form a manufactoring line and provide enough tools this could dramatically decrease time and increase fun :-)
Edited by GermanGuy - 6/22/13 at 12:44am