TIMING •
A Ticker Timer This extremely popular unit has revolutionised experiments because of the quality of the traces it makes, and the reliability of the mechanism ensures that ticker-tape experiments are no longer hit and miss. There is no double-dotting or smearing, even at high speeds. No pen or carbon discs are required. Friction between tape and ticker-timer is kept to a minimum. Excellent results can be expected. The unit comes with a boss-head so that it can be easily clamped in a rod. Requires 2V AC from a low-voltage power supply. The unit is protected by a 2A internal fuse. Uses self-marking paper tape. Self marking tape is not included.
F4R06037
A
TIMING AND MECHANICS B
each £54.95
B Paper Tape Holder and Baseplate Stand with 10mm statinless steel mounted rod to hold tape rolls. A specially designed stand to hold our ticket tape rolls, with easy possible, it is an excellent accessory. Paper not included.
F4R05960
each £53.99
Spare Paper Tape Self marking spare paper tape for item A, 300m reel.
F4A41890
each £5.99
C Ticker Tape-Timer For the measurement of velocity and acceleration, using timing marks made on a moving paper tape by a vibrating ‘striker’. Designed to operate on a 12V a.c. supply and uses the mains frequency as its timing standard. The unit is housed in a moulded case L115 x W60 x H70mm, including mounting flanges. The top of the case carries a tape guide with carbon paper disc support and adjustable ‘anvil’ for the striker point. All moving parts are fully enclosed and electrical connection is via 4mm sockets.
F4H31055
D
C
each £56.99
D g by Free Fall Apparatus To determine the value of ‘g’ by timing the fall of a steel ball. The release unit consists of a plate 90 x 45 x 3mm carrying a pair of metal clips connected to 4mm sockets. The clips are opened, thus dropping the ball and breaking the contact between the clips. The trip unit is mounted on a base measuring 100 x 100 x 12mm and comprises of a trip plate, the end of which bears upon the blade of a micro switch and holds it in the closed position. When deflected downwards by the impact of the ball the trip plate releases the blade and opens the switch. The trip plate comes complete with a protective rubber strip to prevent the switch from damage should it be accidentally struck directly by the ball. Kit comes complete with steel balls of 16mm and 19mm diameter.
F4H25316
E
New
each £99.99
E Pendulum Clamp This sturdy pendulum clamp is constructed of an aluminium support bar with three screw clamps, attached to a die cast head clamp for use on support rods to hang weights and pendulums. Can attach to support rods up to 16mm in diameter. Three screw clamps can securely and individually be used to attach weights with strings. This pendulum clamp makes it easy to simultaneously demonstrate or test the properties of simple harmonic motion in physics labs or classrooms. Size: 29 x 3 x 3cm.
F4R05975
F
each £9.99
F Pendulum Bobs Pack Comprising one solid sphere each of diameter 13mm, 19mm, and 25mm, of brass, copper, iron, lead and aluminium with a small ring for suspension.
F4R05990
New
pack 15 £17.99
Call 0345 BLACK YELLOW MAGENTACYAN
120 4521 8am - 5.30pm Monday to Friday 0075UKEO16_UNIPINN.pgs
75 14.12.2015
13:35