HF2013DX-A HF AMPLIFER INSTRUCTION MANUAL
Page 8 of 37
DESCRIPTION of HF2013DX-A POWER AMPLIFIER
In this amplifier a tetrodetubeFU728F (similar to a 4CX1500B)is used in a grounded-cathode
circuit (input into control grid). This amplifier achieves excellent linearity by the voltage
stabilization of the control grid bias and the screen voltage. The power input is given to the
control grid, using a broadband input circuit with an input impedance of 50 Ohms. This
adaptable input circuitry ensures a good input SWR better than 1.5:1 on all short-wave bands.
The output of the amplifier is a Pi-L circuit. The ceramic capacitor for TUNE and LOAD are
divided. This enables the amplifier to be tuned exactly and makes it possible to easily return
to the previously set positions after band change.
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Содержание HF2013DX-A
Страница 2: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 2 of 37 Instruction Manual Version 1 09...
Страница 29: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 29 of 37 EXAMPLE OF CONNECTION TO AN ICOM...
Страница 30: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 30 of 37 EXAMPLE OF CONNECTION FOR ELECRAFT...
Страница 31: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 31 of 37 EXAMPLE OF CONNECTION WITH YEASU...
Страница 32: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 32 of 37 ICOM 7700 7800 WITH ACCESSORY USB MICRO KEYER IIAND PC...
Страница 33: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 33 of 37 ICOM WITH ACCESSORY USB MICRO KEYER II AND PC...
Страница 34: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 34 of 37 YEASU ELECRAFT WITH ACCESSORY USB MICRO KEYER II AND PC...
Страница 37: ...HF2013DX A HF AMPLIFER INSTRUCTION MANUAL Page 37 of 37 BLOCK DIAGRAM...
