EICO Electronic Instrument Co. Inc. 720 Transmitter
Manufacturer:
Model:
720
Date:
0
Category:
Group:
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

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Cirquit Diagram
Manual type:
Cirquit Diagram
Pages:
2
Size:
527.79 Kbytes (540455 Bytes)
Language:
english
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Manual ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2016 02 18
MD5:
000695149a13995762704288a1373b87
Downloads:
511
Service and User Manual
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

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Service and User 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
Cirquit Diagram
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