Heathkit IB-5281 - Specifications

Ge QHEarTHKIT®
SPECIFICATIONS
Resistance Ranges .............cccccees caus
Inductance Ranges ............0.cccecueeeus
Capacitance Ranges ..........00ccccccuueeee
Oscillator Frequencies ...............00c00ee
External Standard Range.................04.
Power Supply ........... cc cece cece e eee ees
10 2 to 10 MQ in three ranges.
10 wH to 10 H in three ranges.
10 pF to 10 uF in three ranges.
1 kHz, 10 kHz, 100 kHz.
1:1 to 10:1
(2) 9-volt batteries, and/or Heathkit Model IPA-
Dawar Ont.
5280-1 Power Supply.
3-1/2 Ibs. (1.6 kg).
The Heath Company reserves the right to discontinue
products and to change specifications at any time
without incurring any obligation to incorporate new
features in products previously sold.
Refer to the Block Diagram (Illustration Booklet, Page
8) and Schematic Diagram (fold-in) as you read the
“Circuit Description.”
ar)
= as
1 of Pictorial 7-1 shows the configuration for a
heatstone Bridge. When all the values of R are
ual, the voltage at point A will equal the voltage at
Ta
wa “halaman ation”
}o balanced bridge.
e =
a) < <
—_
¢
-
i?)
int B and the meter will indicate “0” (no current
Assume that R3 is an unknown value. If the bridge
becomes unbalanced, the voltages at points A and B
become unequal, and the meter deflects and indicates
the difference voltage. By adjusting R1 to give a bal-
anced bridge condition, you will now know the value
of R3, since it is equal to R1. R1 is usually a calibrated
control or a step-type variable resistor for conveni-
ence of adjustment and readout.