Copied Franck-Hertz Apparatus II
Franck-Hertz Apparatus II
Features:Argon-filled Franck-Hertz tube achieves 5-7 current maximaAnode current range 0.1nA - 1μAAutomatic scan to oscilloscope or chart recorder, or manual scanAdjustable, stabilized filament, grid, and anode voltages3-1/2 digit voltage and current readoutsThe Franck-Hertz Apparatus II is an improved model of the well-known Franck-Hertz Apparatus (FHA001), featuring updated electronics with better stabilization and digital readouts for voltage and current (more robust, easier to read correctly). The fully shielded coax cables reduce electrical noise.The Franck-Hertz Experiment yields basic evidence for the existence of quantum states. Inside a vacuum tube filled with a trace of argon gas, a beam of electrons is generated and accelerated towards a counterelectrode. A voltage barrier ahead of the counter electrode only allows electrons with a certain minimum energy to get through and make a detectable current. As the accelerating energy is increased, changes in the current are observed. On the way to the counter electrode, the electrons collide with argon atoms. At first, nothing happens, but as the electron energy rises, it reaches enough to give one quantum of energy to the argon to ionize it. Now the electron can't pass the voltage barrier and the current drops. The multiple valleys in the current curve are evidence of the donations of a quantum of energy.Requires user-supplied dual-channel oscilloscope for automatic scan.
Price Comparison
| Seller | Contact Seller | List Price | On Sale | Shipping | Best Promo | Final Price | Volume Discount | Financing | Availability | Seller's Page |
|---|---|---|---|---|---|---|---|---|---|---|
|
BEST PRICE 1 Product Purchase
|
|
$3,622.00 | $2,893.00 |
|
$2,893.00 | See Site | Visit Store |
Reviews
Questions & Answers
Dura-Plastic OSHA Sign "Danger Diesel Fuel"
$62.29
111831 Marker w/ Legend: 136
$63.89
Amana Tool 45232 Carbide Tipped Straight Plunge High Production 13/16 D x 3/4 CH x 1/4 SHK x Long Router Bit
$27.15
Tough-Tite, X Aluminum Part E
$37.93
Abrasive High Pressure Heater
$245.70
AIWO Pet Comb Stainless Steel Coarse Teeth Cat Dog Grooming Comb Tool for Removing Matted Fur Knots and Tangles - Type C Green
$1.97
50061460 Distribution Block, #4 AWG - 500 Kcmil
$67.09
Aluminum Sign "Caution - Eye Protection Area"
$31.61
Plastic Sign with Legend "Right to Know Station"
$17.10
"Danger Watch For Forklifts" Sign
$51.25
pH Buffer Standard Solution, 10.012, Clear
$23.87
Quick Snap Snap-In Connector, 3/4"
$42.53
PF-Cardstock OSHA Tag "Caution Do Not Start"
$4.49
Accu-Shield Sign: "Emergency Fire Exit"
$41.45
Non-Rekeyable Padlock
$93.10
Manual Knockout
$702.00
Safety Sign "Go Slow - Sound Signal"
$60.23
Ironing Board Cover Fabric Marbling Protective Press Iron Folding Iron Cover- Style C
$3.12
Acrylic Pipettor Holder, 4 Place
$87.55
Safety Sign "Welding May Produce ..."
$316.10
Marine Grade Anti-Corrosion Compound
$32.25
SBI 140 Indicator
$165.20
Semi Micro Erlenmeyer Flask, mL, 24 mm
$35.24
MK-Dry Premium Core Bit for Masonry
$293.60
EASYCLEAN Optical Connector Cleaning Stick, 2.5 mm
$28.60
Label "Battery Charger
$0.82
Single Sided Entry Unitap Connector, 14 Ports
$1,017.00
Garment Clothes Cover Protector Hanging Garment Storage Bag
$21.89
VX 8/35-N Submersible Pump V.230/60HZ
$553.00
Wire Ferrule, Uninsulated, AWG 2, 25mm Long
$23.71
OSHA Frecnh Sign "Plafond Bas" Aluma-Lite
$36.99
Miele Little Giant Front Load Washer & Dryer Set
$10,390.00
Stupell Industries Home Decor Bathe Wash Your Worries Typography Bathroom Art Collection
$97.00
Bio-cert Filter Pipette Tip, Tip-refill
$69.84
Drum Faucet Brass-plated Zinc 3/4 Bung
$38.89
8Pcs Set Silicone Non-slip Mat Rug Gripper Safe Stickers for Doormat Rug Home Tile Floor Outdoor Carpet x 135 x 2mm - Black
$2.05
5-3/4" x 3-1/4" RP-Plastic Tag "High Voltage"
$11.71
