FOR SALE: Heathkit IG-18 Sine-Squarewave Generators
Extra nice - both in cherry condition. One original Heathkit IG-18 manual is
available also.
The Heathkit IG-18 Sign-Square Wave Audio Generator is designed for laboratory
as well as service and testing. Sine wave signals are available between 1 Hz and
100 kHz. The output is stepped from .003 volt to 10 volts. Square wave signals
are available from 5 Hz to 100 kHz. The output is available at .1 volt, 1 volt,
and 10 volts. The sine and square wave frequencies are identical and the level
of each is independently adjustable. Both signals may be used either
independently
or simultaneously.
SPECIFICATIONS
SINE WAVE OUTPUT
Frequency Range . . . . . . . . . . . . . 1 Hz to 100 kHz
Output Voltage Ranges . . . . . . . . . . . 0 - .003
0 - .01
0 - .03
0 - .1
0 - .3
0 - 1
0 - 3
0 - 10
Internal Load . . . . . . . . . . . . . . Internal 600 ohm load available on
.003, .01, .03, .1, .3, and
1 volt ranges
dB Ranges . . . . . . . . . . . . . . . . -62 to +22 dB
-12 to +2 on meter
-50 to +20 in eight 10 dB switch
positions
+2 dB maximum into 600 ohm load
Output Variation. . . . . . . . . . . . . +/- 1 dB from 10 Hz to 100 kHz
Output Indication . . . . . . . . . . . . Two voltage scales and one dB scale
on front panel meter
Output Impedance. . . . . . . . . . . . . 10 volt range: 0 - 1000 ohms
3 volt range: 800 - 1000 ohms
1 volt range and lower: 600 ohms
Meter Accuracy. . . . . . . . . . . . . . +/- 10% of full scale with proper
load termination
Distortion. . . . . . . . . . . . . . . . Less than 0.1% from 10 Hz to 20 kHz
SQUARE WAVE OUTPUT
Frequency Range . . . . . . . . . . . . . 5 Hz to 100 kHz
Output Voltage Range. . . . . . . . . . . 0 - .1
0 - 1
0 - 10 (zero-to-peak into 2 kohms or
higher load)
Output Impedance. . . . . . . . . . . . . 52 ohms on .1 V and 1 V ranges
Up to 220 ohms on 10 V range
Rise Time . . . . . . . . . . . . . . . . Less than 50 nanoseconds
GENERAL
Frequency Selection . . . . . . . . . . . First two significant figures on 0 -
100 and 0 - 10
switches each in ten steps
Third figure on 0 - 1 control
Multiplier switch: X1, X10, X100, &
X1000
Frequency Error . . . . . . . . . . . . . Within +/- 5% of first and second
digit
Power Requirements. . . . . . . . . . . . 105 - 125 VAC or 210 - 250 VAC,
50/60 Hz, 6 Watts
Dimensions. . . . . . . . . . . . . . . . 5-1/8" high x 13-1/4" wide x 7" deep
The IG-18s seem to go for anywhere from $50.00 - $200.00 or more, and the
average is round $100.00 - $125.00 each.
I will sell these for $75.00 each or two for $120.00 plus shipping, and $10.00
for the manual.
Photos available on request - both are identical and in cherry condition.
PDF manual available on request.
Similar to:
http://www.heathkit.nu/IG-18_1024.jpg
Bry Carling
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