Heathkit EUW 25 Schematic

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HEATH

SPECIFICATIONS

Pagez

VERTICAL AND HORIZONTAL AMPLIFIERS
Bandwidth.............. ...........
Sensitivity............ .......
Attenuator... .........
Inputlmpedance.......... .........
Gain Control ..... ..........
Centering ....... ........
Coupling.................. .........
Polarity............... .......

Relative Phase Shift Between Channels, . . . . . .

SWEEP GENERATOR
Recurrent Type ........ . .............

Sync Provisions .......... . .......... .

SyncPolarity................... .....

Frequency Coverage. .

Blanking.................. .........
GENERAL
TubeComplement............ .....

DC to 400 kc (3 db point).

,1 volt (peak to peak) per 1/4" deflection (un»
calibrated).

3-position, compensated,
3,6 megohm shunted by 35 Muf.
Continuously variable.

Any portion of a Z" x 2"trace may be positioned
on any portion of the CR tube screen, Panel
markings for the centering controls allow for
easy beam finding,

Either AC or DC, selected with the input atten-
uator switch.

A positive signal applied to the vertical channel
causes upward deflection; a positive signal
applied to the horizontal channel causes beam
deflection to the left,

Less than 5 degrees.

Linear sawtooth produced by multivibrator type
generator.

Internal or External sync may be switchselected.
Sync level is automatically maintained over a
range of 1/4" to 2 vertical trace.

Plus or minus sync may be switch selected,

5 cps to 50 kc infour overlappingranges, Lower
sweep rates may he obtained by adding capaci-
tance to the External Capacity" binding post.

Retrace is blanked in conjunction with the in-
ternal sweep generator.

- SRPl medium persistence, green trace CRT.
- 6AB4 Cathode followers,

- SBSB Amplifiers,

- 12BH'7 Push-pull deflection amplifiers.
12AU7 Sweep multivibrator.

- 6X4 Low voltage rectifier,

- 1V2 High voltage rectifier.

- 0A2 B+ voltage regulator,

- OCZ Bias voltage regulator.

HHHHNMNNH
.

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H EATH

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Front Panel Controls ..................

Input Connections. . . . . . .. . . ...........

Power Supplies. . . . . . . .......... . . . . .

DimensionS. . . ........ . . .

Netweight............ ............ .

Shipping Weight, . . . . . . . . . ..... . .

All prices are subject to change without notice,
The Heath Company reserves the right to discon-
tinue instruments and to change specifications at

VERTICAL AMPLIFIER - Step Attenuator, Var-
iable Attenuator, Balance, Input snorting Switch,
Vertical Positioning.

HORIZONTAL AMPLIFIER - Step Attenuator,
Variable Attenuator, Balance, Input shorting
Switch, Horizontal Positioning.

SWEEP GENERATOR - Coarse Frequency Se-
lector, Fine Frequency Selector, Sync Polarity
Switch.

FOCUS.

INTENSITY - AC Switch.

Vertical, Horizontal, External Sync, and Ex-
ternal Capacity are 5-way binding posts,

Input to vertical and horizontal deflection plates
on rear panel,

Z-Axis input on rear panel, requires 1 to 15
volts for complete blanking, depending on In-
tensity control setting.

Transformer-operated, fused. 13+ supply, full-
wave rectifier, High voltage and 8- supply,
half-wave rectifier. All critical voltages regu-
lated with VR tubes.

9-3/8" high x 9-3/16" wide x 11-9/16" deep.
15 lbs.

17 lbs.

any time without incurring any obligation to
incorporate new features in instruments pre-
viously sold,