ok. I think I had one of those moments too... trying to get a VHF-only TV work with the UHF band... Cable TV converter's were rare and expensive - if only I had a photo of the converter's circuitry then, I'd enjoy watching TV from 1PM. On 5/15/09, aki <aki275@googlemail.com> wrote:
:) I made the fm mod from complete scratch. only the nf capacitors, 2 transistors and Ne 555 chip were purchased. after a few days of cals got my frequecies and power levels correct. etched it on a board, soldered things up and tuned the antenne. it achieved its purpose. everyone slept peacefully thereafter. " strangely " there was magic in the air.. lol! I'd not have time to do these things now. one of these days, I'll bore you guys with minor stories about designing a channelized antenne project that never took off ( when ktn 62 came around in 1990 ), designing TVRO sat dishes which was not commercial and including trying to understand the old kbc 2 encryption using a 10mhz ( obsolete ) oscilloscope. The good old days of late nights and a passion to discover..... :-)