This page shows a modulation xfrmr from an audio amp modulating a PA final
xistor--if that is difficult it is, if not--it is not... this is only a
simple drawing--but yeah, it is pretty much like that...

Warmest regards,
John
--
If "God"--expecting an angel... if evolution--expecting an alien... just
wondering if I will be able to tell the difference!

"Netgeek" wrote in message
...
| So you're saying that there's no info because it's far too simple - so why
| bother to write it up in a text or app note?
|
| Surely there is some small amount of "finesse" involved - whether it be in
| the implementation of the modulation transformer or in trying to get the
| optimum modulation levels in general. Nobody has covered this in a text?
|
| I'm sure I could come up with some brute-force approach in doing the
| high-level modulation using a kludge transformer (the "grenade" guys
| are using simple line level transformers run "backwards")...
|
| Either there's a more "scientific" approach to this or, as you suggest,
| it's always done empirically??? Just wondering......
|
| Bill
|
| "John Smith" wrote in message
| ...
| Just run the output of any audio source of ~5 watts into a "modulation
| transformer" and have the B+ to the transmitter pass through its
| secondary...
|
| You can also construct an audio amplifier whose output power final
| "modulates" (perhaps the B+ from the audio amps final transistor/tube)
the
| B+ to the xmitter... etc... ssb is by nature 2X-plus more efficient...
| fm
| supports greater sound quality...
|
| I think detail about it is skipped simply because it is so easy to
| affect....
|
| Warmest regards,
| John
|
|