SPECIFIC CHARGE – ACCESSORIES 

The 0 – 500 V DC power supply is especially intended for operating electron tubes, including Helmholtz coils. The 0 – 500 V DC power supply provides four independently adjustable DC voltages. The DC voltages are stabilised ... more

The 5 kV high voltage power supply is a universally usable non-earthed high voltage source for operating electron tubes. The 5 kV high voltage power supply provides a continuously variable stabilized high voltage with passive current ... more

These Helmholtz coils are essential components for determining the specific charge of an electron (e/m) using a fine-beam tube (experiment 8000667 / 8000668). Additionally, in combination with the flat coil in a rotatable frame (item no: ... more

Low voltage power supply to supply voltages for operating narrow electron beam tubes (1024633) or training oscilloscope (1000902). The DC voltages 0 − -50 V and 0 − +300 V have a common zero volt ground so that DC voltages of ... more

The tube holder accommodates the entire range of tubes model S designed for practical experiments, along with their accessories such as Helmholtz coils S (1000611) and an auxiliary coil (1000645), and can also serve as the base for the discharge ... more

The tube holder accommodates all tubes of the series D and their accessories, such as the Helmholtz Coils D (100644) and Auxiliary Coil (100645). (1000656). The tube holder consists of a robust base plate with an upright stanchion and ... more