EICO Electronic Instrument Co. Inc. 720 Transmitter
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Model:
720
Date:
0
Category:
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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
Manual type:
Cirquit Diagram
Pages:
2
Size:
527.79 Kbytes (540455 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2016 02 18
MD5:
000695149a13995762704288a1373b87
Downloads:
511
Manual type:
Service and User Manual
Pages:
10
Size:
936.76 Kbytes (959243 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2016 02 18
MD5:
0b6d5e807e6d385797c6e8848c40c079
Downloads:
505
Information
Instruction Manual
Manual type:
Service and User Manual
Pages:
39
Size:
4.60 Mbytes (4828173 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2016 02 18
MD5:
17dc609ac431285a27e637ef91b527e4
Downloads:
534
Manual type:
Cirquit Diagram
Pages:
4
Size:
583.38 Kbytes (597382 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2016 02 18
MD5:
6bb5a13b7d6bfca87fc6b089eecab0fd
Downloads:
511