Van de Graaff generator QLL-014. Spark length 70 mm

Used for electrostatic experiments where a continuous high voltage source is necessary.
The aluminum base has plastic insulating sides for greater safety.
An internal motor allows the continuous movement of a rubber belt between 2 pulleys, this produces the transfer of charge from the belt to the metal dome through charge collector “combs”.
The dome hollow is specially designed with a smooth and polished surface free of imperfections and without corners, edges or edges to minimize load loss.
The motor works based on AC 220-240 V, 50/60 Hz electric current and is activated by an On/Off switch.
The equipment has a 4 mm banana plug plug on the base for ground connection and another on the top for charge transfer or placement of accessories.
It is supplied complete with accessories and with discharge sphere with insulating handle.
By positioning the discharge sphere close enough to the charged dome, the charge is transferred to ground in the form of an electrical spark that jumps from the dome to the discharge sphere.
Under favorable conditions it can develop an electrical potential of up to 200 kV with a spark up to 70 mm long.