This german tubetester is all original. It is a very handy tester for testing the tubes in my german radio’s. It is remarkeble, that even a lot of american tubes can be tested. So a very useful tubetester.
Picture Above: RPG4 Front View.
In the lid, there is a cable, which you can connect to tubetester itselves. So alle the tube testscockets in the lid comes available.
Picture above: RPG4 inside look.
Right the rectifier tube, left the voltage stabiliser tube,