- Hello kit builders! Clark KK7DY here. I ve been building kits for 42 years, starting with a Science Fair Globe Patrol shortwave receiver in 1972 andMessage 1 of 37 , Feb 14View Source
Hello kit builders! Clark KK7DY here. I've been building kits for 42 years, starting with a Science Fair Globe Patrol shortwave receiver in 1972 and continuing through Heathkits, Ramsey kits, Ten Tec kits, an M cubed kit, and some scratch building. I'd say I was an intermediate skill level kit builder, but I have NEVER attempted Surface Mount Technology! I am apprehensive about starting on my Softrock Ensemble RXII. I see that Robby's website has several good tutorials and Youtube links to SMT, so I'll check on those and keep my laptop at my bench for constant reference.
Question: Wouldn't it be easier to solder the back side SMT components FIRST, so the front side can lay flat while one holds down the SMT components down with a probe while soldering? Does one clamp the SMT,components in place with a heat sink clip? Also, are the pads for the SMT components pre-tinned? Maybe this will all become apparent when I view the tutorials.
73 de KK7DY
- Original Message ----- Subject: [softrock40] RE: New to the group. ... Lucky it did not fly into oblivion! At least you ve done the difficult part and found aMessage 37 of 37 , Feb 22View SourceOriginal Message -----
Subject: [softrock40] RE: New to the group.
>Anyway, even with holding the component down with a pick, I ended up blowing it off the board with the heat embossing tool. ILucky it did not fly into oblivion!
>ended up clamping it down with a modified heatsink clip and using my Weller to solder the feet to the pads, also soldering the
>capacitors. It's not pretty, but so far, everything tests out to spec on the power supply and USB phases. On to the local
>oscillator phase today!
At least you've done the difficult part and found a way that suits yourself.
Some get on well with embossing guns and reflow. My experience has been more like yours although the embossing tool makes a good way
of chip removal. - But that's just my experience:).
The rest should be easy.. I hope.
73 Alan G4ZFQ