Tube Tester / Tube Checker
RM 1 - Beck Elektroakustik (Beck)
Using the RM 1 Tube Checker it is immediately possible to do an exact plate current measurement without doing the often very toilsome procedures mostly necessary with classical devices. Put the electron tube, which should be measured, simply into the accordingly marked test socket, switch the equipment on, select the socket by using the rotary switch (it is indicated by a LED), wait for approx. three minutes till the tube is working stabile and read off the value on the panel meter.