Copied Perrin Tube
Perrin Tube
Highly evacuated electron tube with focusing electron gun and fluorescent screen inclined relative to the beam axis so that the path of the beam can be seen and the effects of electric and magnetic fields can be studied. The electron beam can be deflected using two methods: 1) electrically using electric field of the built-in plate capacitor, or 2) magnetically using external Helmholtz Coils (U185051). Also determine the fundamental electron charge-to-mass ratio (e/m) and study mean electron velocities using field cancellation.
Price Comparison
| Seller | Contact Seller | List Price | On Sale | Shipping | Best Promo | Final Price | Volume Discount | Financing | Availability | Seller's Page |
|---|---|---|---|---|---|---|---|---|---|---|
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BEST PRICE 1 Product Purchase
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$981.00 | $980.00 |
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$980.00 | See Site | Visit Store |
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Questions & Answers
Super Stripper, 10-18 AWG
$22.95
ToughStripe Polyester Label Tape, Green
$245.69
Rectangular x 1-1/4" Stainless Mirror
$23.92
Binocular Stereo Zoom Body 0.7x-4.5x
$1,275.00
1/2" 12 Point Deep Socket, 1/2 Drive
$29.24
Amana Tool 46415-K-5, 5-Pack SC Spektra Extreme Tool Life Coated Spiral Plunge 1/4 Dia x 1 CH x 1/4 SHK Inch Long Down-Cut Router Bits
$203.33
MPS Spa Check Pool and Spa Check
$12.40
Cryo-DirectTAG Cryogenic Labels
$162.40
113602 Wire Marker Card w/ Legend: 118
$70.19
No. 81 Wide Laminated Steel Padlock, 1-1/2" Shackle
$16.10
DS-500/5 5mm Generator Probe
$924.00
3/8" F x 3/8" F Check Valve
$35.42
xTool Filter Replacement for Smoke Purifier
$99.99
Polyester Front End Parking Only Sign
$24.30
Universal Strainer Crank Handle
$7.46
Bilingual Notice Keep Area Clean Sign
$10.53
Ovation 50uL Pipette F2 Fixed Volume, Two Stroke
$282.20
Heavy Duty Hot Wire Thermo-Anemometer
$475.99
1/4" MPT Hex Head Plug, Brass
$1.37
Schedule 80 Threaded Polypropylene Tee
$8.27
50220C Copper Compression Lug, 1 Hole, 2/0 AWG
$12.79
1" x ft. Roll Tape Pipe Marker "Natural Gas"
$33.34
Replacement Probe with Vane
$87.30
Safety Sign "Foot Protection Required" Plastic
$171.00
Handicapped Parking Sign, Reserved Parking
$57.35
Non-Rekeyable Padlock
$168.90
M6 Thread Aluminum Cone Head Adapter
$20.11
Volumetric Flask
$42.28
70x80cm Lazy Sofa Cloth Cover Lounger Seat Bean Bag Chair Tatami Pouf Puff Couch Protective Cover with Handle - Light Yellow
$5.59
XIAOMIYOUPIN NEXTOOL 12-in-1 Outdoor Speaker Portable LED Music Multifunction Flashlight Power Bank
$27.52
Amana Tool 51403 CNC SC Spiral O Single Flute, Plastic Cutting 1/4 D x 1-3/8 CH x 1/4 SHK x Long Up-Cut Router Bit with Mirror Finish
$49.05
Credit Card Holder RFID Blocking PU Leather + Aluminum Alloy Pop Out Double Layer Card Case - Black
$3.69
Notice Safety Sign "COVID-19...", Vinyl
$10.26
20068, Padlock Aluminum, B KD Brown
$19.05
1/2" Hose ID x Hose OD Brass Reusable Ferrule
$10.61
Wire Marker w/ Legend: O, Black on White
$63.89
Sign "Caution - Children Playing"
$29.08
6608 Phase Rotation Meter
$84.55
