Instruction Sheet
for the PASCO
Model SF-9586
012-02815D
1/95
$1.00
Phone (916) 786-3800 • FAX (916) 786-8905 • email: [email protected]
10101 Foothills Blvd. • P.O. Box 619011 • Roseville, CA 95678-9011 USA
better
teach physics
ways to
© 1994 PASCO scientific
This instruction sheet edited by: Tom Reineking
To Use the Power Supply:
➀
Plug the power cord into a well-grounded 107-128 VAC,
60 Hz or 198-242 VAC, 50 Hz outlet. (See label on
rear of unit).
➁
Connect the appropriate output terminals of the power
supply to the circuit. (Connecting wires are not pro-
vided with the supply.)
➂
Turn the HIGH VOLTAGE ADJUST knob fully
counterclockwise.
➃
Flip the ON/OFF switch on the front panel to ON.
The switch will light to show that the power is on.
➄
Turn the HIGH VOLTAGE ADJUST knob to obtain
the desired output. The meter will show the voltage
between the 6 KV output terminals.
➤
CAUTION!—HIGH VOLTAGE
The power supply uses two 390 K
Ω
resistors
which limit the output current to approximately
3mA. Nevertheless:
* Always work with a partner.
* Wear rubber soled shoes.
* Work with one hand only. Keep the other hand
in your pocket or behind your back.
KILOVOLT POWER SUPPLY
ON
OFF
SF-9586
KILOVOLT POWER SUPPLY
HIGH VOLTAGE ADJUST
6.3 VAC
6 KV
3 KV
3 KV
CAUTION!
HIGH VOLTAGE
kV
Introduction
The PASCO scientific Model SF-9586 Kilovolt Power
Supply provides regulated DC power from 0 to 6 kilo-
volts. The 6 kilovolt output is center tapped, providing
outputs of 0 to +/-3 kilovolts. In addition, a pair of output
jacks provides 6.3 volts of AC power, which is commonly
used as filament power in electron tube experiments.
➤
IMPORTANT:
➀
The 6.3 VAC output is unregulated. If you are
using it to heat the filament in a vacuum tube, we
recommend that you use a current limiting resistor
(1-2
Ω
, variable) in series. Measure the voltage at
the filament and adjust the resistance to get the re-
quired voltage.
➁
For an accurate meter reading, always use the
left and right output jacks (6 kV). Use the middle
jack only when your application requires a center-
tapped voltage. (The center tap will be the mid-
point of the output voltage only if equal currents
are drawn from the ±3 kV output jacks.)
