M Paquette is the first person in a while who I have seen call the hobby amateur radio, instead of what seems to be the more oft-used term "ham radio". I too prefer the term amateur radio, as it communicates the fact that we pursue this interest for love rather than money.
I guess my two main interests are amateur radio and photography, though photography has taken something of a backseat in the last few years. I tend to limit my interests to very specific areas, and rather than declaring my hobby to be amateur radio, my interests recently have focused specifically on building regenerative shortwave receivers. I don't actively pursue photography as a hobby anymore, but it's nice to be able to use my old (but still functional) DSLR to take pictures of my home-brew projects.
This is the front end board for the regen I am currently building. From right to left, it comprises an RF pre-amp, separate Q-mulitplier and detector stages, and an AF pre-amp. The plug-in coils for the different bands, and the variable capacitors for tuning will mount separately -
The AF board, with the basic active audio filter. It's a 2-stage filter with a 3dB cut-off set at 4KHz and a relatively slow roll-off, for general shortwave listening -
I plan on using a 6-way rotary switch to select various active filters. This is a 4-stage filter with a 3dB cut-off set at 2.4KHz. The response is designed to be about 80dB down at 5KHz and is intended mainly for listening to SSB. I may redesign it for a slightly wider 3dB cut-off at 2.7KHz or even 3KHz -
I'll add a few more filters when the receiver is built but next, the chassis and front panel need to be made. The main chassis will be constructed of 12 gauge aluminum, and the front panel will be custom-designed black powder-coated (or anodized) aluminum, with the lettering and other markings all engraved into the panel. A couple of black instrument handles will look good too, I think.
The main tuning control will be this lovely piece of engineering, a National HRO NPW gear drive and dial, which I stripped down, cleaned and re-lubricated -
I'll also use a couple of National Velvet Vernier drives for the regen and fine tuning controls. The front panel should have a fairly vintage look, if it turns out the way I am hoping.
I'm rather excited about this receiver. If it works out as planned, I hope to find a local carpenter to construct a nice wooden cabinet for it, so that it can truly be a "keeper". When my head isn't full of such geeky radio thoughts, I am riding my bicycle around town, befriending the local stray and feral kitties, and watching British TV shows, while pondering what it would actually be like to live in Old Blighty once more.
That's pretty much it. Now it's time for a glass of cab and an episode of "A Touch Of Frost" on Hulu. It just turned 12 noon, and I do like to wait until at least the afternoon before touching the plonk