Equipment information:

EICO Electronic Instrument Co. Inc. 720 Transmitter
Manufacturer:
EICO Electronic Instrument Co. Inc.
Model: 720
Date:
Category: Radio, Communication
Group: Transmitter
Description: 9 0 - WATT CW TRANSMITTER
Information:
                                    The new E1CO Model 720 is a very "clean" 90 watt CW, 80
through 10 meters bandswltching amateur transmitter. This
exceptionally conservative, stable high efficiency
electrical design is housed in a modern "low-silhouette"
cabinet to permit its use in normal living-room space. Some
important design features are: one-knob band switching;
one-knob power, tune and operate switch; final amp-
lifiergrid drive control without detuning oscillator;
oscillator keying for break in operation; a"novice limit"
calibration (75 watts) on the meter; matching antennas from
50 to lOOOohms. External plate modulation terminals permit
use as an AM phone transmitter delivering up to 65 watts
plate power input with the EICO Model 730 High Level
Universal Modulator-Driver.
FEATURES
1. Ideal for seasoned veteran or beginning novice,
2. 6146 final amplifier for full 90 watts cw input.
3. Completelysealed cabinet and careful by-passing and
choking of all input and output leads for effective TV1
suppression*
4. Protection of final amplifier is provided by a clamper
tube circuit, when a loss of excitation exists·
5· One knob band-switching —no coils to change.
6. Final amplifier grid drive control without detuning
oscillator·
7· Auxiliary power socket provided·
8. One knob power, tune, and operate switch.
9. Oscillator keying for break-in operation.
10. No shock hazard at key terminals

These manuals are available for the above equipment:

EICO Electronic Instrument Co. Inc. -- 720 -- Service and User Manual
File name: Eico-7735-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 39
Size: 4.60 Mbytes (4828173 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, all readable.
Upload date:
MD5: 17dc609ac431285a27e637ef91b527e4
ed2kID: 9fc638ac978127c341981daf3d5cd2e5
Downloads: 25 since 18 February 2016
Information:
Eico-7735-Manual-Page-1-Picture
Start Free Download


EICO Electronic Instrument Co. Inc. -- 720 -- Cirquit Diagram
File name: Eico-7736-Manual-Page-1-Picture
Manual Type: Cirquit Diagram
Pages: 2
Size: 527.79 Kbytes (540455 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, all readable.
Upload date:
MD5: 000695149a13995762704288a1373b87
ed2kID: 5f976172ca27d191ee5719f18be1e1b9
Downloads: 15 since 18 February 2016
Information:
Eico-7736-Manual-Page-1-Picture
Start Free Download


EICO Electronic Instrument Co. Inc. -- 720 -- Service and User Manual
File name: Eico-7737-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 10
Size: 936.76 Kbytes (959243 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, all readable.
Upload date:
MD5: 0b6d5e807e6d385797c6e8848c40c079
ed2kID: db909c43675b5f862aaf5ec2491372c8
Downloads: 18 since 18 February 2016
Information:
Instruction Manual
Eico-7737-Manual-Page-1-Picture
Start Free Download


EICO Electronic Instrument Co. Inc. -- 720 -- Cirquit Diagram
File name: Eico-7748-Manual-Page-1-Picture
Manual Type: Cirquit Diagram
Pages: 4
Size: 583.38 Kbytes (597382 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, all readable.
Upload date:
MD5: 6bb5a13b7d6bfca87fc6b089eecab0fd
ed2kID: fdc7d5c9b7b1d270d8116487377ba4f6
Downloads: 15 since 18 February 2016
Information:
Eico-7748-Manual-Page-1-Picture
Start Free Download


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