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29 Jan 2024 22:30:47 UTC
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END F
end-fed-half-wave-antenna-legal-limit
This was tested at 1.5 KW using CW and Digital on 80 meters for 30 + Minutes and there was no over heating. The fan is the secret!
More construction details can be found here:
https://www.youtube.com/watch?v=BpdpkUEW39o
...
https://www.youtube.com/watch?v=Uvnv6qa4-4U
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END F
end-fed-half-wave-antennas-vs-random
Here's a few antenna matching devices I've gathered and some experience with the antennas.
CAPACITORS ARE 220 PF each and in series.
Interested? Join our FB page... End Fed Half Wave Antennas at https://www.facebook.com/groups/EndFedHalfWaveAntennas/
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https://www.youtube.com/watch?v=xfqlun3bdI0
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E.F.
e-f-johnson-desk-kw-amplifier
An ongoing project to reassemble a mid 50's AM transmitter.
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https://www.youtube.com/watch?v=QkjeJK88Kw0
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IC-73
ic-7300-tuner-activator-switch
Close the switch and your IC-7300 will output 10 watts carrier for purposes of adjusting your manual tuner or keying an auto tuner.
Diode is a 1N4148 or similar. Not critical.
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https://www.youtube.com/watch?v=DfQyHQEkBuo
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R-390
r-390a
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https://www.youtube.com/watch?v=n0aR_pksIzg
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ICOM
icom-ic-7300-warning-low-voltage-trash
Beware. Your power supply should supply 13.8 volts DC.
12 volts from a battery is not enough.
This is true for many rigs, especially when using CW.
RF Sidebands are produced when the voltage is low.
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https://www.youtube.com/watch?v=EmfRzqhONyo
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OLD F
old-friends-am-net-3715-kc-6-00pm-3-26
The Old Friends Net uses only Amplitude Modulation.
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https://www.youtube.com/watch?v=iBM9JWLQuvg
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DELMO
delmonico-fm-am-sw-radio-model-t11
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https://www.youtube.com/watch?v=zTJ8HvCEIoc
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FLEX-
flex-radio-6000-series-agc-t-adjustment
Here is the proper method to adjust the AGC-T slider on all Flex 6000 series radios.
Note: The adjustment will vary with the strength of the band noise. It may change by band and by time of day.
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https://www.youtube.com/watch?v=Hwm6rszuMis
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