Note that the Paraset uses three of the American black-painted rugged ‘metal’ valves. Two 6SK7 ‘RF pentodes’ for the regenerative receiver and a single 6V6 ‘beam tetrode’ for the transmitter.
If you’re into making electronics projects, then how about considering a replica Paraset? You’ll find a wealth of helpful material on-line today if you do. The basic but complete circuit is shown below. Coil details etc. can be found online if you want to have a go at building one.
Reminder- You WILL need to have passed the Amateur Radio Examination with morse to legally use the transmitter section. You’re free to use the receiver part without one of course!