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 tube S (1000624).
Product Information: ..
The tube holder consists of a base plate with a holder for the tube set at an angle with terminal panel attached. The tail-stock for the neck of the tube contains an octal plug connector and a central bore. Five sockets are electrically connected to the terminal panel with its 4-mm safety sockets. A filament protection circuit is also integrated into the neck brace to prevent excess voltage being applied to the cathode heater circuit and thus protecting the sensitive heater filament from damage. The relay cuts out at a filament voltage of about 10.5 V DC or about 8.5 V AC. It switches back on again when the filament voltage is once again below the limit. Excess voltage is indicated by a red LED.
The base also contains a slot for accommodating Helmholtz coils either transversely to the tube and up to 150 mm away from it or in standard Helmholtz configuration (marked). The ramp at the front of the tube holder accommodates the Helmholtz coils in an axial configuration and also provides a base for the auxiliary coil.
The tube holder is mounted on three rubber feet and is thus unable to slide.
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S](/imagelibrary/U185002/U185002_01_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S](/imagelibrary/U185002/U185002_02_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S](/imagelibrary/U185002/U185002_03_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S](/thumblibrary/U185002/U185002_01_1200_1200_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S (Small)](/thumblibrary/U185002/U185002_02_1200_1200_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
![Tube Holder S -
for the experimental setup of tubes of series S, 1014525 [U185002], Electron Tubes S (Small)](/thumblibrary/U185002/U185002_03_50_50_Tube-Holder-S-for-the-experimental-setup-of-tubes-of-series-S.jpg)
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![Replacement Circuit Board for Tube Holder S, 4008573 [U99999-611], Electron Tubes S](/thumblibrary/U99999-611/U99999-611_01_140_140_Replacement-Circuit-Board-for-Tube-Holder-S.jpg)
![Perrin Tube S, 1000616 [U18554], Electron Tubes S](/thumblibrary/U18554/U18554_01_140_140_Perrin-Tube-S.jpg)
![Thomson Tube S, 1000617 [U18555], Electron Tubes S](/thumblibrary/U18555/U18555_01_140_140_Thomson-Tube-S.jpg)
![Triode S, Helium-filled, 1000618 [U18557], Electron Tubes S](/thumblibrary/U18557/U18557_01_140_140_Triode-S-Helium-filled.jpg)
![Triode S, Neon-filled, 1000619 [U18558], Electron Tubes S](/thumblibrary/U18558/U18558_01_140_140_Triode-S-Neon-filled.jpg)
![Auxiliary Coil -
for the establishment of crossed B-fields in the Perrin tube, 1000645 [U19106], Electron Tubes D](/thumblibrary/U19106/U19106_01_140_140_Auxiliary-Coil-for-the-establishment-of-crossed-B-fields-in-the-Perrin-tube.jpg)
![Dual Beam Tube S, 1000622 [U18570], Electron Tubes S](/thumblibrary/U18570/U18570_01_140_140_Dual-Beam-Tube-S.jpg)
![Triode S, Vacuum, 1000614 [U18551], Electron Tubes S](/thumblibrary/U18551/U18551_01_140_140_Triode-S-Vacuum.jpg)
![Luminescence Tube S, 1000615 [U18552], Electron Tubes S](/thumblibrary/U18552/U18552_01_140_140_Luminescence-Tube-S.jpg)
![Teltron Discharge Tube S, 1000624 [U18580], Electron Tubes S](/thumblibrary/U18580/U18580_01_140_140_Teltron-Discharge-Tube-S.jpg)
![Teltron Maltese Cross Tube S, 1000011 [U18553], Electron Tubes S](/thumblibrary/U18553/U18553_01_140_140_Teltron-Maltese-Cross-Tube-S.jpg)
![Electron Diffraction Tube S, 1013889 [U185711], Electron Tubes S](/thumblibrary/U185711/U185711_01_140_140_Electron-Diffraction-Tube-S.jpg)
![Diode S, 1000613 [U185501], Electron Tubes S](/thumblibrary/U185501/U185501_01_140_140_Diode-S.jpg)
![Helmholtz Coils S, 1000611 [U185051], Electron Tubes S](/thumblibrary/U185051/U185051_01_140_140_Helmholtz-Coils-S.jpg)
![Experiment: Thermionic Diode (115 V, 50/60 Hz), 8000655 [UE3070100-115], Electron tubes](/thumblibrary/UE3070100-115/UE3070100-115_01_140_140_Experiment-Thermionic-Diode-115-V-5060-Hz.jpg)
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![Experiment: Maltese-Cross Tube, Basic equipment (115 V, 50/60 Hz), 8000659 [UE3070300-115], Electron tubes](/thumblibrary/UE3070300-115/UE3070300-115_01_140_140_Experiment-Maltese-Cross-Tube-Basic-equipment-115-V-5060-Hz.jpg)
![Experiment: Thermionic Triode (115 V, 50/60 Hz), 8000657 [UE3070200-115], Electron tubes](/thumblibrary/UE3070200-115/UE3070200-115_01_140_140_Experiment-Thermionic-Triode-115-V-5060-Hz.jpg)
![Experiment: Maltese-Cross Tube, Basic equipment (230 V, 50/60 Hz), 8000660 [UE3070300-230], Experiments with Electron Tubes](/thumblibrary/UE3070300-230/UE3070300-230_01_140_140_Experiment-Maltese-Cross-Tube-Basic-equipment-230-V-5060-Hz.jpg)
![Experiment: Perrin tube (115 V, 50/60 Hz), 8000663 [UE3070400-115], Electron tubes](/thumblibrary/UE3070400-115/UE3070400-115_01_140_140_Experiment-Perrin-tube-115-V-5060-Hz.jpg)
![Experiment: Perrin tube (230 V, 50/60 Hz), 8000664 [UE3070400-230], Electron tubes](/thumblibrary/UE3070400-230/UE3070400-230_01_140_140_Experiment-Perrin-tube-230-V-5060-Hz.jpg)
![Experiment: Critical Potentials (115 V, 50/60 Hz), 8000715 [UE5020500-115], Atomic shells](/thumblibrary/UE5020500-115/UE5020500-115_01_140_140_Experiment-Critical-Potentials-115-V-5060-Hz.jpg)
![Experiment: Electron Diffraction (230 V, 50/60 Hz), 8000704 [UE5010500-230], Fundamentals of Atomic Physics](/thumblibrary/UE5010500-230/UE5010500-230_01_140_140_Experiment-Electron-Diffraction-230-V-5060-Hz.jpg)
![Experiment: Thomson Tube (115 V, 50/60 Hz), 8000665 [UE3070500-115], Electron tubes](/thumblibrary/UE3070500-115/UE3070500-115_01_140_140_Experiment-Thomson-Tube-115-V-5060-Hz.jpg)
![Experiment: Critical Potentials (230 V, 50/60 Hz), 8000716 [UE5020500-230], Atomic shells](/thumblibrary/UE5020500-230/UE5020500-230_01_140_140_Experiment-Critical-Potentials-230-V-5060-Hz.jpg)
![Experiment: Electron Diffraction (115 V, 50/60 Hz), 8000703 [UE5010500-115], Fundamentals of Atomic Physics](/thumblibrary/UE5010500-115/UE5010500-115_01_140_140_Experiment-Electron-Diffraction-115-V-5060-Hz.jpg)
![Experiment: Thermionic Diode (230 V, 50/60 Hz), 8000656 [UE3070100-230], Experiments with Electron Tubes](/thumblibrary/UE3070100-230/UE3070100-230_01_140_140_Experiment-Thermionic-Diode-230-V-5060-Hz.jpg)
![Experiment: Thomson Tube (230 V, 50/60 Hz), 8000666 [UE3070500-230], Experiments with Electron Tubes](/thumblibrary/UE3070500-230/UE3070500-230_01_140_140_Experiment-Thomson-Tube-230-V-5060-Hz.jpg)
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![Barrel Foot, 1 kg, 1002834 [U13265], Bases](/thumblibrary/U13265/U13265_01_140_140_Barrel-Foot-1-kg.jpg)
![Safety Experiment Leads, 75 cm, 2.5 mm², blue, red, (2 pcs), 1017718 [U13816], Experiment Leads and Cables](/thumblibrary/U13816/U13816_01_140_140_Safety-Experiment-Leads-75-cm-25-mm-blue-red-2-pcs.jpg)
![Analogue Multimeter ESCOLA 100, 1013527 [U8557380], Hand-held Analog Measuring Instruments](/thumblibrary/U8557380/U8557380_01_140_140_Analogue-Multimeter-ESCOLA-100.jpg)
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(230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Pocket Measuring Tape, 2 m, 1002603 [U10073], Measurement of Length](/thumblibrary/U10073/U10073_01_140_140_Pocket-Measuring-Tape-2-m.jpg)
![HF Patch Cord, BNC/4 mm Plug, 1002748 [U11257], Experiment Leads and Cables](/thumblibrary/U11257/U11257_01_140_140_HF-Patch-Cord-BNC4-mm-Plug.jpg)
![Digital Multimeter P3340, 1002785 [U118091], Hand-held Digital Measuring Instruments](/thumblibrary/U118091/U118091_01_140_140_Digital-Multimeter-P3340.jpg)
![Set of 15 Experiment Leads, 75 cm 1 mm², 1002840 [U13800], Circuits](/thumblibrary/U13800/U13800_01_140_140_Set-of-15-Experiment-Leads-75-cm-1-mm.jpg)
![HF Patch Cord, 1m, 1002746 [U11255], Experiment Leads and Cables](/thumblibrary/U11255/U11255_01_140_140_HF-Patch-Cord-1m.jpg)
![Digital Counter (230 V, 50/60 Hz), 1001033 [U8533341-230], Digital Counters](/thumblibrary/U8533341-230/U8533341-230_01_140_140_Digital-Counter-230-V-5060-Hz.jpg)
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