HF Amplifier Under Construction
 
Here are some images of the HFpacker amplifier I built to augment my QRP rig.
See http://www.hfprojectsyahoo.com/hf-packeramp.html
73 de Lou K0ANS
 

   


1. Not a kit. This is how it arrives from K5OOR.
2. Amp board. Note the three hand-wound transformers.
3. Power FETs on the reverse side of the amp board.
4. A baker's dozen hand-wound toroids for the low pass filter board.
5. Filter board, front side with toroids. A penny is shown for scale.
6. Filter board, back side with most of the capacitors.
7. Power supply board.
8. Final assembly, rather dense for a home construction project.
9. Finished front with switches and indicator.
10. Finished back with RF and power connectors.
11. Amp and exciter.