Smith Chart

[pwdrive]

Thanks for the replies. In respect of transmission line etc: I remember in the 60's when I was an apprentice in the R & TV trade that some of the old time TV Techs. showed me how to make a 1/4 wave stub, these were used to overcome certain reception problems with TV, but I can't remember exactly which, possibly as a notch to tune out adj. channel interference or to overcome down lead matching problems, maybe to notch out TVI breakthrough from local amature radio transmissions, do any Techs. remember this trick?, We definately used them.

Lawrence.