Heathkit IM 48 Manual

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Frequency ReSponse:

AC VTVM

Sensitivity:
AC VTVM
Wattmeter. .

LM, Analyzer

Range:
AC VTVM

DBM

......

Wattmeter

LM. Analyzer

Input Impedance:
AC VTVM

Wattmeter

Output Impedance

--......-........

Wattmeter. . . . . . . . . . .
l.M, Analyzer High Pass Filter. . . .
I.M. Analyzer Low Pass Filter. . . ,

-....-....

........

...-......

I.M. Analyzer

........

HEATHKIT

SPECIFICATIONS

Low and High Frequency Output. . . . . . .

Internal Generator Frequencies:

Low Frequency............
HighFrequency............

Accuracy:

AC VTVM and Wattmeter

l_M, Analyzer

.........-...

...-....-........-....

10 cycles to 100 kc :1 db.
10 cycles to 50 kc :1 db,
2000 cps to 12000 cps.

10 cps to 600 ops,

10 millivolts full scale maximum.

.15 milliwatts full scale maximum.

.04 volts minimum high frequency signal re-
quired or .17 volts of LF and HF energy mixed
4:1.

.01, .03, .1, .3, 1, 3, 10, 30, 100, 300 volts RMS
full scale.

-40, -30, -20, -10, 0, +10, +20, +30, +40, +50
reads from -65 to +52 dbm,

.15 mw, 1,5 mw, 15 mw, 150 mw, 1.5 w. 15 w,
150 w full scale. Maximum continuous power 25
watts, intermittent power to 50 watts.

1%, 3%, 10%, 30%, 100% full scale.

1 megohm or 4, 8, 16 or 600 (2, switch selected,
1 megohm or 4, 8, 16 or 600 (Z, switch selected.
4, 8, 16 or 600 (2 internal load, 10,000 SE across
external load,

3000 $2 (600 52 when shuntedwith750§z resistor).

60 cycles,
Approximately 6 kc.

Within 5% of full scale.
Within 10% of full scale,

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-HEATHKIT'

Gene

Multipliers. .
Meter

Meter Rectifier
Tube Complement

Page 3

ral:

...--.

......-.....

Precisiontype.

. . . . . . . . . . . . . 4-1/2" streamlined case with 200 microampere
movement.

. . . . . . . . . . . . . Germanium diode bridge.

............. 1-12AT7

1 - 12AU7
1 - 12AX7
1 - 6C4
1 - 6X4
Power Supply. , , , , . , . . . . . . , . . . . . . . Transformer, full wave rectifier.
Power Requirements. . . . . . . . . . . . . . . . 105-125 or 210-250 volts 50/60 cycles 20 watts,

Dimensions, . . ...... . . . . . . . . . . . . . . 13" wide x 8-1/2" highx 7" deep.
NetWeight....................... 9lbs.
The Heath Company reserves the right to dis-
continue instruments and to change specifica-
tions at any time without incurring any obliga-
tion to incorporate new features in instruments
previously sold,
I0 I00 IOOO IO KC IOOKC
+5 2357 2357 2357 2357 2357
one - fiE' ~'.
-5 i \J
\
-IO NOTE: ALL MEASUREMENTS TAKEN FROM
soon souncs. VTVM CURVES MEASUR- N
-I5 -_ ED FOR BEST AND POOREST RESPONSE \
(.OIV RANGE AND 3V RANGE RESPECTIVELY)
- 0 H T T FA
FRE UENCY C ARAC ERIS ICS WILL LL WATTMETER
BETWEEN THESE LIMITS ON ALL OTHER RANGES.
k 1 { I | l l I I 3V VTVM RANGE II----
MAXIMUM - .OIV VTVM RANGE -- --
MAXIMUM PERMISSIBLE PERMmsmLE -
LOW FREOUENCV HIGH FREQ.
OPERATING RANGE m) OPERATWG
l I$--RANGE-)1
0 A I Vs r! l g
I I.M. ANALVZER /I.M. ANALYZE \
5 LOW PASS FILTER / HIGH PASS \
-Io RESPONSE FILTER \
\ RESPONSE \
I5

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IMC