开云体育

AD8307

Hi Loris -?

Let's see - one AD8307 from DigiKey is $14 - my handful of parts is about $3 - so if you want to save "a lot of money" use my design :)!? ? In fact the entire? Furlough-40 can be built for less than $100 in parts - only about a dozen active parts for an SSB transceiver.

My purpose was not commercial - it was to lean basic electronics and RF theory and practice.? I'm not an EE and had very little electronics experience before building the Furlough-40.? ?The Furlough-40 is based on a brilliantly simple design by N6QW, Pete Juliano that uses only about a dozen active parts for an exceptional performing? scratch-built? QRP SSB rig.? Pete calls it the and he presented it to enthusiastic response at the GQRP club conference two months ago.??

At this point in my learning curve an "integrated, that's all folks" approach isn't for me.? ?built the F-40 from scratch because I didn't learn much from the simple uBitx kit build.? ?I built it during quarantine (thus the name "Furlough-40") earlier this year and have since worked "around the world" of 5 watts SSB phone and digital.? I could not be more pleased with how well the rig works and what I have learned. There is something to be said for simplicity,. Following Pete's advice I built my own Manhattan style boards, built one module at a time so I could really understand and learn how the circuit works.? So, when I wanted to add AGC and S-Meter I kept in mind the simplicity of design and low cost of components.? (Although adding a transistor and Op-Amp increases the active component count by 20%!) The great thing about this hobby is that there are continual learning opportunities.? ?And if you don't like it one way - you can have it your way!?

Thanks for the note and 73,

Dean
KK4DAS