Why do I like using SMD? Let me explain, I began making radios using valves, it was all there was at the time. When I started work in the industry the first training courses were on valves and how they worked. Then the transistor came, then integrated circuits followed by surface mount devices, SMD. I guess I have followed the technology.
It is easy to be overwhelmed by progress and stick with what you know but there are many advantages to using SMD:
individual components, resistors and capacitors, are very cheap
many older devices are no longer available as wire ended e.g. the SA612
PCBs are smaller due to high packing density
high frequency boards are easier and cheaper
An SMD VFO module
Above is an SI5351 board (ready made apart from soldering the SMA connectors) it is just 30mm wide and can used with an Arduino to make VFO with 3 programmable sine wave outputs. Current cost is less than £5 on ebay plus the Arduino.
You might need some new tools like a magnifier, fine tipped soldering iron and good quality tweezers. There are more including heated tweezers and a hot air gun for component removal but they can wait for a while.
So, my advice is do not be put off and have a go. Find a simple kit to practice with and then progress to more complex circuits. It helps if you know something about how SMD components are sized. Srat with the larger sizes and work down.
1206 and 0805 are popular SMD sizes
This is another good one to print out.
Over the coming month I will add to this series of posts and share some of the projects I am working on which include: a remote tuner, vector network analyser (VNA), wide range VFO/signal generator, a switched attenuator.
The antenna is back up after 6 years! Nothing fancy just an inverted L at about 11m (~35ft) and around 38M (125ft) long. Still need to put in a counterpoise in the lawn but the ground is rock hard after weeks of drought, so it will have to wait.
I have a nice waterproof box that housed a commercial tuner to house it and will probably make it solar powered to avoid have to DC up the coax. Hope to get the coax in this week, it is something like a 40M run of RG-213. So, work to do before winter!
Time and time again I see the trite remark that life is too short for QRP. Well, QROers you can do amazing things with very small amounts of power! Oleg Borodin, RX3G and Leonid Bovin, R1LB have completed a QSO on 14.060 over a distance of 970kms with each using 80mw. Congratulations to you both for keeping real amateur radio alive.