G'day Frank and others, I had stumbled across this clip recently and was intrigued by the complexity of the instrument operation. I don't understand the dialogue unfortunately. I must remember to google Cardani Block instruments when time permits. Steve.
And here -- http://www.segnalifs.it/it/bl/N_bem.htm -- a good description of 'Il blocco elettrico manuale tipo F.S.' -- however in Italian, on the website of Marco Antonio.
G'day Ulf, Thanks for the link. I have saved the page to my usb stick to peruse at home. Even though the text is in Italian, the diagrams will help to understand the operation. Steve.