Description
Continuously motor-driven to supply a steady high-voltage source
the larger working face giving longer beam paths for measurable lateral-displacement studies
letting students drive the lamp directly or send the slow AC output to a meter or oscilloscope
Bell-in-vacuum jar with a 4-6V electric bell suspended on rubber cord inside a 22 by 15cm glass chamber
Jolly's Photometer Build to Order Continuously motor-driven to supply aBrightness comparing Jolly's photometer using a translucent paraffin disc method, the balanced position locating the photometric midpoint between two unequal light sources.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
recommand products
