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You can use a 2-deck construction and still have everything accessible: if you use "ugly" and double sided board, you can build on both sides of the board as if it was single deck. My favourite is

I made a tranceiver named 'Wee Willy', it is for 80 meter band and operates DSB. I started with a housing that was too small, added PCB on the bottum of the housing for easy soldering. because the

I like that kind of challenge too, though I have yet to even finish my conventionally sized BITX :-( If you look in your component catalogues you will find very small alternatives to large

Miniature BITX builders: Using a brass-screw type PTO also makes the VFO section much more compact, without compromising slow and precise tuning, but like Hans says, you will then need some sort of

making Hi! Dont know how I missed on this one. I have made many SWR bridges in these extrusions. Thanks will try squeezing one into it. Plans are as follows: Bi-directional amplifiers using 1/8w

Hello, You've never seen my junkbox. I've been collecting and building for over 40 years as a result it's a large collection. Materials like tin plate, GI, Sheet copper, sheet brass, aluminum, and

Voice of experience from somebody who moderates a couple of electronics groups ... Rahul is right. You see 10 times the back- channel traffic sometimes. I'm not sure if Bill K0ZL is here to vouch

Hi! Allison and others, Practicaly the galvanised iron is simply known as GI sheet here. It is very common in all sort of gauges as it is effectively used in manufacture of Desert coolers in large

Hi! Bitx involves a lot of design implementation from grass root level and some unique ideas. There would be lot of queries. Be prepared for it. 73 Rahul VU3WJM Arv Evans K7HKL

I support this change Farhan, I think it's a good idea. I also welcome the OM Arv on board as moderator! In case members are worried: I believe that non-members who are reading the postings cannot

Pro's and Con's. If It were up to me I would at least give 'read-only' access a trial, assuming that it can be revoked should it be necessary. JMO, Mike G8NXD --

Hi, Strips of PCB mounted edgewise was how I solved the space and shielding problem. Still required some feedthrough caps to pass DC and control voltages. Allison KB1GMX the excellent Qptimised

FYI Here is an idea that Hans G0UPL and myself have been discussing on another forum: Thin galvanized iron sheet used for roof flashing may be available in your local DIY (Do It Yourself) hardware

Farhan I do not mind helping with admin duties if needed. From work on other forum groups, it seems that admin activities mostly involve the verification and authorization of new members (and very

i have a couple of suggestions for administeration of this group. at the moment, hans (the silent lurker, the original bitx procastinator, the real-soon-now soldering iron maniac) and i 'manage' the

these are broad-band transformers. their inductance not very critical at all. as long as you have about 200 ohms reactance at the lowest frequency of operation (which is 4MHz: the VFO, in this

Hi! Thanks for the tips and suggestion. Idea of Altoid tin reminds me of the excellent Qptimised QRP transceiver. BITX though is full blown design. I would try assenbling stages on .7 inches pcb

Hello, Some comments inserted in line. One of the things to watch for is tuning to the third harmonic of the VFO or the mixer having bad balance(excessive VFO feedthrough). Insure the bandpass

Go for it, thats a real challenge. I've put what amounts to the recieve side of a Bitx in a altoids tin. That was easy, the knobs are always a problem. Seriously, the real problem was keeping the

Hi Jim, I live in Leander, Texas. I've built one BITX 20 (20 Meter band) so far using all through hole parts. I used a PCB and I never finished the transmitter because of a spur in the output that is