Equipment information

EICO Electronic Instrument Co. Inc. 730 Generator
Manufacturer
EICO Electronic Instrument Co. Inc.
Model 730
Date 1958
Category: Measurement instruments
Group Generator
Description MODULATOR-DRIVER
Information
                                    The new EICO Model 730 is a superb, truly versatile
modulator at low cost. It can deliver 50 watts of
undistorted audio signal for phone operation — more than
sufficient tomodulate 100%the EICO Model 72090-wattCW
Transmitter or any transmitter whose RF amplifier has a
plate input power of up to 100 watts. The multi-match output
transformer matches most loads between 500 to 10,000 ohms
and the unique over-modulation indicator permits easy,
reliable monitoring, thus precluding any need for a plate
meter. The Model 730 provides low level speech clipping and
filtering with peak speech frequency
range circuitry. Low distortion is also achieved through the
use of feedback and the employment of premium quality audio
power pentodes. The vacuum tube rectifier is the
extra-rugged, slow warm-up GZ34, which eliminates high
starting voltages and lengthens electrolytic and tube life.
Balance and bias adjustment controls are also provided and
the finest quality, conservatively rated parts are used
throughout. The Model 730 is also an excellent low impedance
driver for a class B high— power modulator.

These manuals are available for the above equipment:

Manual Type Service and User Manual Eico-7740-Manual-Page-1-Picture
Pages 28
Size 2.92 Mbytes (3064349 Bytes)
Language english
Revision
Manual-ID/Number
Date 1958
Quality Scanned document, all readable.
Upload date
MD5 77c1690d8981335488f04a173c37b07d
Downloads 53 since 18 February 2016
Information
Construction Manual
Eico-7740-Manual-Page-1-Picture


Manual Type Service and User Manual Eico-7741-Manual-Page-1-Picture
Pages 9
Size 1.09 Mbytes (1139865 Bytes)
Language english
Revision
Manual-ID/Number
Date 1958
Quality Scanned document, all readable.
Upload date
MD5 d02f36403359b9fbee684ad58d0652f0
Downloads 55 since 18 February 2016
Information
Instruction Manual
Eico-7741-Manual-Page-1-Picture


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