Thank you Guenther for this nice little circuit. I love the way that the IF amplifier is also the AF amplifier. Saves a few blocks at least.

I would love to build a superhet radio with Lectron. I have the electronic parts already.

What do you think is the best option ?

Building small circuit blocks (RF, oscillator, IF, …) or each component apart ?
I found also a neat antenna solution : I stick a rather thick spring wire into 1 of the circuit separator blocks. I will take a picture of it soon.