Measuring the RF amplifier

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Some measurements on the RF-amplifier DIY-kit from Banggood, the RF_AMP_530 designed by ZGJ.
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There really is no need for the ever so loud music ... I cant understand why " Technical Videos " must have this type of music .

Gwwvl
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Need to do a two-tone test on it to check linearity. For ssb that's the acid test.

rogeronslow
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Hi, I have connected Minipa to Ubitx, but on doing so get a high SWR. How could this be reduced. Without the amp my SWR on 40m is 1.4. 73.

rajeshhuddar
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Man i have built 2 of these things. I cant get a signal out of the 2nd transistor the c1917. 20mv in 20mv out. change bias resistors. 20 mv in 20 mv out. What is the deal with the c1917??

doccpu
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Hi, by any chance do you have the instructions for this? I bought it but it came with a confusing chinese manual.
Thanks

Flagrazi
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Hi Patrick, sorry for my English,
I have a 500_V306 amp just like the one you show in the video. The question is: How many Wats do you have to excite for the 40 meter band? Thanks greetings

gerardofloresfernandez
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Hello Patrick - Is that a Radart 2424 signal generator? I have one sitting on my desk but I haven't figured out different ways of using it (especially the right keyboard that sets the level). Do you have any sort of a user manual for it? 73 Ram VU3RDD

vurdd
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ага и с1971 был прям родной новый.))) их уже больше 10 лет как не выпускает митсубиси.

леонидбрежнев-чз
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это все хорошо.но китайцы присылают транзисторы 100% поддельные.

василийтёркин-кр