![Helmholtz Coils D -
for experiments with electron tubes of the D series, 1000644 [U191051], Electron Tubes D](/imagelibrary/U191051/U191051_01_Helmholtz-Coils-D-for-experiments-with-electron-tubes-of-the-D-series.jpg)
![Helmholtz Coils D -
for experiments with electron tubes of the D series, 1000644 [U191051], Electron Tubes D](/thumblibrary/U191051/U191051_01_1200_1200_Helmholtz-Coils-D-for-experiments-with-electron-tubes-of-the-D-series.jpg)
| Application: .. |
| Product Information: .. |
| Specifications: .. |
| Number of turns: | 320 each |
| Coil diameter: | 136 mm approx. |
| Rod: | 145 mm x 8 mm Ø |
| Max. current: | 1.0 A (continuous) |
| 1.5 A (momentary, max. 10 min) | |
| 2.0 A (momentary, max. 3 min) | |
| Effective impedance: | 6 Ω approx. |
| Connectors: | 4-mm socket |
| Magnetic flux B | |
| in Helmholtz-configuration: | B = k * I, where k = 4.2 mT / A approx; I = current |
| Weight | 1.2 kg |
| Dimensions | 28 x 21 x 0.08 cm |
| Brand | 3B Scientific Teltron |
![Tube Holder D -
for the experimental setup of tubes of series D, 1008507 [U191001], Electron Tubes D](/thumblibrary/U191001/U191001_01_140_140_Tube-Holder-D-for-the-experimental-setup-of-tubes-of-series-D.jpg)
![Set of Experiment Leads for Electron Tube Experiments, 1002847 [U138101], Experiment Leads and Cables](/thumblibrary/U138101/U138101_01_140_140_Set-of-Experiment-Leads-for-Electron-Tube-Experiments.jpg)
![Dual Beam Tube D, 1000654 [U19170], Electron Tubes D](/thumblibrary/U19170/U19170_01_140_140_Dual-Beam-Tube-D.jpg)
![DC Power Supply 20 V, 5 A
(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)
![Maltese Cross Tube D, 1000649 [U19153], Electron Tubes D](/thumblibrary/U19153/U19153_01_140_140_Maltese-Cross-Tube-D.jpg)
![DC Power Supply 20 V, 5 A, 1003311 [U33020-115], Power Supplies](/thumblibrary/U33020-115/U33020-115_01_140_140_DC-Power-Supply-20-V-5-A.jpg)
![Deflection Tube D, 1000651 [U19155], Electron Tubes D](/thumblibrary/U19155/U19155_01_140_140_Deflection-Tube-D.jpg)
![High Voltage Power Supply 5 kV (230 V, 50/60 Hz), 1003310 [U33010-230], Power Supplies](/thumblibrary/U33010-230/U33010-230_01_140_140_High-Voltage-Power-Supply-5-kV-230-V-5060-Hz.jpg)
![Protective Adapter, 2-Pole, 1009961 [U8557001], Electron Tubes D](/thumblibrary/U8557001/U8557001_01_140_140_Protective-Adapter-2-Pole.jpg)
![Set of 15 Safety Experiment Leads, 75 cm, 2.5 mm², 1002843 [U138021], Circuits](/thumblibrary/U138021/U138021_01_140_140_Set-of-15-Safety-Experiment-Leads-75-cm-25-mm.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)
![DC Power Supply 0-500 V (230 V, 50/60 Hz), 1003308 [U33000-230], Power Supplies](/thumblibrary/U33000-230/U33000-230_01_140_140_DC-Power-Supply-0-500-V-230-V-5060-Hz.jpg)
![Barrel Foot, 1 kg, 1002834 [U13265], Bases](/thumblibrary/U13265/U13265_01_140_140_Barrel-Foot-1-kg.jpg)
![Universal Clamp, 1002830 [U13255], Clamps](/thumblibrary/U13255/U13255_01_140_140_Universal-Clamp.jpg)
![Electron Diffraction Tube D, 1013885 [U191711], Electron Tubes D](/thumblibrary/U191711/U191711_01_140_140_Electron-Diffraction-Tube-D.jpg)
![Function Generator FG 100 (230 V, 50/60 Hz), 1009957 [U8533600-230], Function Generators](/thumblibrary/U8533600-230/U8533600-230_01_140_140_Function-Generator-FG-100-230-V-5060-Hz.jpg)
![Vibration generator -
for investigating oscillations and resonances, 1000701 [U56001], Oscillations](/thumblibrary/U56001/U56001_01_140_140_Vibration-generator-for-investigating-oscillations-and-resonances.jpg)
![High Voltage Power Supply 5 kV (115 V, 50/60 Hz), 1003309 [U33010-115], Power Supplies](/thumblibrary/U33010-115/U33010-115_01_140_140_High-Voltage-Power-Supply-5-kV-115-V-5060-Hz.jpg)
![Spectrum Tube Power Supply (230V, 50/60 Hz), 1000684 [U418001-230], Spectrum Tubes and Spectrum Lamps](/thumblibrary/U418001-230/U418001-230_01_140_140_Spectrum-Tube-Power-Supply-230V-5060-Hz.jpg)
![Red Laser Diode, 650 nm, 1003201 [U22000], Optical Lamps on Stem](/thumblibrary/U22000/U22000_01_140_140_Red-Laser-Diode-650-nm.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)
![Analogue Multimeter ESCOLA 100, 1013527 [U8557380], Hand-held Analog Measuring Instruments](/thumblibrary/U8557380/U8557380_01_140_140_Analogue-Multimeter-ESCOLA-100.jpg)