High-quality interchangeable board with an undoped germanium crystal for investigating the conductivity of undoped germanium as a function of temperature. With contacts for transverse current, integrated resistive heating element with temperature sensor directly under the crystal, and multi pin plug for connecting the circuit board to the basic Hall effect apparatus (U8487000).
![Undoped Germanium on Printed Circuit Board, 1008522 [U8487010], Hall-effect](/imagelibrary/U8487010/U8487010_01_Undoped-Germanium-on-Printed-Circuit-Board.jpg)
![Undoped Germanium on Printed Circuit Board, 1008522 [U8487010], Hall-effect](/imagelibrary/U8487010/U8487010_02_Undoped-Germanium-on-Printed-Circuit-Board.jpg)
![Undoped Germanium on Printed Circuit Board, 1008522 [U8487010], Hall-effect](/thumblibrary/U8487010/U8487010_01_1200_1200_Undoped-Germanium-on-Printed-Circuit-Board.jpg)
![Undoped Germanium on Printed Circuit Board, 1008522 [U8487010], Hall-effect (Small)](/thumblibrary/U8487010/U8487010_02_50_50_Undoped-Germanium-on-Printed-Circuit-Board.jpg)
![Basic Hall Effect Apparatus, 1009934 [U8487000], Hall-effect](/thumblibrary/U8487000/U8487000_01_140_140_Basic-Hall-Effect-Apparatus.jpg)
![N-Doped Germanium on Printed Circuit Board, 1009760 [U8487030], Hall-effect](/thumblibrary/U8487030/U8487030_01_140_140_N-Doped-Germanium-on-Printed-Circuit-Board.jpg)
![P-Doped Germanium on Printed Circuit Board, 1009810 [U8487020], Hall-effect](/thumblibrary/U8487020/U8487020_01_140_140_P-Doped-Germanium-on-Printed-Circuit-Board.jpg)
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![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)
![Barrel Foot, 1 kg, 1002834 [U13265], Bases](/thumblibrary/U13265/U13265_01_140_140_Barrel-Foot-1-kg.jpg)
![Transformer with Rectifier 3/6/9/12 V, 3 A (230 V, 50/60 Hz), 1003316 [U33300-230], Power Supplies](/thumblibrary/U33300-230/U33300-230_01_140_140_Transformer-with-Rectifier-36912-V-3-A-230-V-5060-Hz.jpg)
![Pair of Pole Shoes and Clamping Brackets D for Hall Effect, 1009935 [U8497205], Demountable Transformer D](/thumblibrary/U8497205/U8497205_01_140_140_Pair-of-Pole-Shoes-and-Clamping-Brackets-D-for-Hall-Effect.jpg)
![Coil D with 600 Turns, 1000988 [U8497430], Demountable Transformer D](/thumblibrary/U8497430/U8497430_01_140_140_Coil-D-with-600-Turns.jpg)
![Digital Multimeter P3340, 1002785 [U118091], Hand-held Digital Measuring Instruments](/thumblibrary/U118091/U118091_01_140_140_Digital-Multimeter-P3340.jpg)
![Universal Clamp, 1002830 [U13255], Clamps](/thumblibrary/U13255/U13255_01_140_140_Universal-Clamp.jpg)
![Pair of Safety Experiment Leads, 75 cm, blue, red, 1017718 [U13816], Experiment Leads and Cables](/thumblibrary/U13816/U13816_01_140_140_Pair-of-Safety-Experiment-Leads-75-cm-blue-red.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)
![Calipers, 150 mm, 1002601 [U10071], Measurement of Length](/thumblibrary/U10071/U10071_01_140_140_Calipers-150-mm.jpg)
![Tubing, Silicone 6 mm, 1002622 [U10146], Glassware](/thumblibrary/U10146/U10146_01_140_140_Tubing-Silicone-6-mm.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 P1035, 1002781 [U11806], Hand-held Digital Measuring Instruments](/thumblibrary/U11806/U11806_01_140_140_Digital-Multimeter-P1035.jpg)
![Tripod Stand 150 mm, 1002835 [U13270], Bases](/thumblibrary/U13270/U13270_01_140_140_Tripod-Stand-150-mm.jpg)
![Teslameter E, 1008537 [U8533982], Magnetic Fields](/thumblibrary/U8533982/U8533982_01_140_140_Teslameter-E.jpg)
![Analogue Multimeter ESCOLA 100, 1013527 [U8557380], Hand-held Analog Measuring Instruments](/thumblibrary/U8557380/U8557380_01_140_140_Analogue-Multimeter-ESCOLA-100.jpg)