[BC] How would you build it?

[Rob Landry]

On Wed, 30 Jul 2014, Rob Atkinson wrote:

>Old rigs have relays, filaments, gas rectifiers, high voltage, blowers, swinging meters...they make noise, lights, give off heat, they look like they're doing something and seem dangerous (because they are) and therefore are Exciting.  But more important, the physics of electronics is in evidence.  What you are taught you can see and hear (maybe smell) first hand.

OK, here's a thought: if you had to custom-build an AM broadcast transmitter capable of, say, 1 KW, how would you do it?

Given that modulation transformers aren't easy to find, my idea would be to build a small box and use it to drive a linear amplifier. It might not be the most efficient thing in the world, but it should sound pretty good.

Rob