Pebble HF – part 1

Back in late March I saw this article and after reading it, I followed the link to the Pebble HF website, and got myself on the waiting list. As time passed, I got an email update or two, and last week I got a notice that my kit had shipped !

It arrived yesterday! Woohoo!

Here’s what was in the box, partly unpacked.

Before I start putting it all together I’ll need to clear some space on the worktable, so this is just the beginning of a series of posts.

Inside the housing; a knob, a sticker, a bag of small parts, and magnet wire.
In the bag: rotary encoder, 2 pushbuttons, headers, BNC and TRS jacks, three BS170 transistors, two toroid cores, an electret microphone, and a little lever-action microswitch.

I really like the idea of the microswitch as a built-in straight key for CW operating. Just like a Paraset!

A close up shot of the circuit board.
Back view; firmware is V.1.0.7
I ordered the ISP programmer too, so I can update the firmware as needed.
Three BS 170 FETs in parallel seem to be the go-to final output transistors for QRP rigs, you see them everywhere. It’s hard to argue with a price of seventeen and a half cents each (in 100 quantity).

Well, there you have the text-and-still-photographs version of an unboxing video. I’m going to go clean off some space on the bench and warm up the soldering iron!

Thanks for visiting driftlessqrp! More about this tomorrow!


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