3B Scientific Teltron Tube Holder D - Manual (Page 3)

3B SCIENTIFIC® PHYSICS
1
Tube Holder D U191001
Instruction sheet
06/10 ALF
1 Base plate
2 Holes for inserting Helm-
holtz coils
3 Stanchion
4 Retaining slider
5 Clamping jaws for tubes
6 Fork
7 Stock for tubes and optical
analogue equipment
1. Safety instructions
When operating tubes, the terminals may be live to
high voltages that are dangerous to touch.
• Do not modify circuits unless all power sup-
plies are turned off.
• Do not mount or remove tubes unless all
power supplies are turned off.
2. Description
The tube holder accommodates all tubes of the
series U191501 - U19171 and their accessories,
such as the Helmholtz Coils U191051 and Auxiliary
Coil U19106 plus the Optical Analogue equipment
U19172.
The tube holder consists of a robust base plate with
an upright stanchion and a fork-shaped holder for
hot cathode tubes that can be rotated by 360° and
is made of heat-resistant, highly insulating plastic.
The tubes are secured into sprung clamps with
retaining sliders. Two holes are bored in the base
plate to accommodate a pair of Helmholtz coils at
the “Helmholtz separation distance” for generating
a uniform magnetic field. The tube holder rests on
three non-slip rubber feet.