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General| Modulation | AM |
|---|---|
| Modes | CW |
| Power Supply | External |
| Tube lineup | 6L6 |
| Frequency Range | 80, 40, 20, 15, 10 meters |
Instructions for tuning the transmitter on the 80 meter band, including power and standby switch settings.
Procedure for tuning the transmitter on the 40 meter band, including meter and driver controls.
Method for tuning the transmitter on 20, 15, 11, and 10 meter bands using crystal frequencies.
Formula and example for calculating the load impedance presented by the radio frequency amplifier for modulation.
Information on how to identify and order replacement parts for the AT-1 transmitter.
Details on returning the instrument for inspection and repair by the Heath Company.
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