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4 KW HF LINEAR AMPLIFIER with GU-78B by SV8JE

Modification of an RFD-1A (TMC) Linear AmplifierPL-8295 has been replaced with GU-78B to increase powerClick to EnlargeTypical Operating CharacteristicsOutput power: 3.8KW(with 100w input )Plate...

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4 KW HF Linear Amplifier with GU-78B by SV8JE

                                            Click to Enlarge                                              Heater and High Voltage both "soft" start                        Control and screen grids are...

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50 Mhz LINEAR AMPLIFIER 1.2Kw with GS-31B by SV8JE

    original electronic design by YU1AW (yu1aw.ba-                                                             karlsruhe.de)                                     Click to Enlarge

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144 Mhz LINEAR AMPLIFIER with GS-31B by SV8JE

original electronic design by YU1AW http://yu1aw.ba-karlsruhe.deClick to EnlargeFrond and top viewFrond viewthe RF deckAntenna variable capacitancePlate variable capacitanceInput stageInput stage...

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2m LINEAR AMPLIFIER 2kw with GS-35B by sv8je

 original electronic design by YU1AW  (http://yu1aw.ba-karlsruhe.de)Click to Enlarge front and top viewbottom view, cooling air circulationtube output stageantenna variable capacitanceplate variable...

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144Mhz ΓΡΑΜΜΙΚΟΣ ΕΝΙΣΧΥΤΗΣ ΜΕ ΤΗΝ GS-31B

      original electronic design by YU1AW (yu1aw.ba-                                                          karlsruhe.de)                                   Click to Enlarge...

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432 Mhz LINEAR AMPLIFIER

original electronic design by YU1AW Http://yu1aw.ba-karlsruhe.de TYPICAL OPERATING Output power: 0,9-1 KW(with 50w input ) Plate voltage:3000v Plate current:700mA Bias:-30v Grid current: 120mA Idle...

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