several months ago, some rain water leaked through the roof and ceiling on to
my old B and K scope.. it blew out the high voltage circuit when I turned it on.
I had it for 20 years or more.
so I went on craigslist and found here in my area a Tektronix 465M for
225 bucks. . . this is the military version of the old famous 465B that I have
used back as a technician years ago, working at various places.
both of these scopes were very
costly back then.
so you can get you an old analog CRT scope for cheap nowadays,
and they are good for RF.
that is how I learned, by reading books, and then going on the internet to learn,
then try to design, build, and look at the signal on the O-scope and blow stuff up.
.them IRF510 can just pop and smoke sometimes.
and the only book that really tells you how to design is
Solid State Design for the Radio Amateur - by Hayward
and I have some other book "RF Circuit Design" that is good also.