Category Archives: Gear

Restoring HP3335A Part 2

After cleaning the synthesizer inside and out, I replaced multiple screws that were missing from the internal metal frame, and bolted down the power supply, which was obviously replaced in the past (without putting it back in properly).  Despite the … Continue reading

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Restoring a HP 3335A to full operation

I’ve always been sort of a time nut, but that’s pretty closely related to frequency.  The ARRL helps to sponsor a periodic Frequency Measurement Test, usually held in April and November.  A good friend of mine, John WA1ABI, always participates … Continue reading

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Replaced my Mobile Mount Today

Back in March of 2013, I installed a Diamond K9000 Motorized Antenna Mount. Unfortunately it started acting up about five months ago after about 3.5 years of service mounted on a truck that leaves its garage about twice a week, … Continue reading

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A New Transistor for the Pixie

Of course the Pixie final transistor, Q2 S8050, gets darned hot, and I’ve blown one out in the past just holding the key down more than a few seconds.  With my Pixie + Red Core Filter, I was seeing about … Continue reading

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Passing Pixie!

After experimenting with T37-6 yellow core inductors, it was time to change to the T37-2 red core.  These have a lower operating frequency, up to 10 MHz, and it is possible that they might have a higher attenuation on 14 MHz … Continue reading

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A 40 Meter LPF for the Pixie

As I mentioned the 40-meter Pixie QRP rig has pretty horrible harmonics, well above the maximum allowable FCC limit (-43 dBc).  One Pixie was about -9 dBc, and the other was about -20 dBc. The output filter in the Pixie … Continue reading

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Pixie Pain

There is an inexpensive QRP kit that sells on eBay for somewhere between $4-10, called a Pixie.  It is a single conversion rock bound 40 meter QRP rig often set to 7.023 MHz, but sometimes 7.040 MHz.  They are often … Continue reading

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K1 Tuner Completed

It took about an hour to wind the 5 inductors and install the remaining components, so the entire kit took about 2.5 hours to assemble.  Some minor changes need to be made to the K1 itself, and the meter circuit … Continue reading

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Gotta Love Portable Operation

My family and I went to Lake George in early August for a week of fun — I’m not as bendy as they are, so while they were parasailing and kayaking, I hung back at our hotel to make a … Continue reading

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A Grand Day at ARRL HQ

A friend of mine, Paul, N1PSX, and I drove to ARRL HQ yesterday for a visit.  It was Paul’s first trip, and the first time in a long time for me (my father and I visited in 1982 when we … Continue reading

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