Description

an ignition light firing on compression for visual timing

the longer focal value yielding milder divergence for subtler virtual-image reduction in optics work

each fitted with 98 iron-rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near

Lightweight and chemically stable

Single B22 Lamp Holder Subcategory_Pitchers an ignition light firing onSingle B22 bayonet lamp holder on a hard plastic base with two 4mm banana terminals, sized to drop a household style bulb into a student built circuit for power and Ohm investigations.

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Single B22 Lamp Holder Subcategory_Pitchers an ignition light firing on

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