Author Archives: David Donaldson

About David Donaldson

64 and Live in Jakarta, Indonesia. like to ride my bikes.

RM’s 400w CB Amplifier in Use

Finally got around to putting the KL-703 on the bench and taking it for a run. I was interested to see how it would handle some extended SSB at 400w PEP. Drove it with an FT891 with 40w feeding the … Continue reading

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RM’s KL703 500w PEP Amplifier Test

There hasn’t been a lot of new stuff to talk about recently with 10/11m in decline with the low sunspot cycle. Despite all that RM decided to send us a KL703 to look at which was very nice of them. … Continue reading

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RM’s new 500w CB amp

Are they listening at last? 4 kl203’s in one box. Yup: 16 of those little mosfet transistors in parallel. Should be good for an easy 500w pep and 40w to 60w pep in. Is there anybody left on CB any … Continue reading

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Albrecht’s AE 7500

I think this deserves it’s own write up now that I have played with it a bit. When I got the radio it was set up in Code 4 from turn on. I thought it was a little bit hamstrung … Continue reading

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Dragon Delta Force (NIB)

Lucked out the other day and got my hands on a couple of NIB Dragon Delta Force radios. They closely resemble the S-45’s we used to get from Magnum and are a welcome change from the stuff we been seeing … Continue reading

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A new Radio on the Bench : FT-891

I guess I was one of the many that were hanging out for a new HF mobile rig. The Icom 7000’s days appeared to be numbered so had sold that a while back and kept the trusty 706mk2G but she … Continue reading

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The New Magnum One

Well it finally arrived and has been bouncing around the desk for some time on 10m only mode cos I don’t have the skills to do the solder work necessary to convert to it’s proper mode of 24.5 to 30mhz!! … Continue reading

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