Building HF Power Amplifier - Materials and Tools
This post will cover the materials and components needed for building the HF power amplifier. I will also outlined the tools I used.
Materials
| Description | Bought At | Cost | Qty | Comments |
|---|---|---|---|---|
| DXWorld-e Boards | DXWorld-e | $713.53 | * | |
| Flatpack2 power supply | eBay | $69.08 | 1 | |
| MRFX1K80H Transistor | eBay | $75.43 | 1 | |
| Power supply board | JLCPCB | $11.33 | 5 | ** |
| Components for power supply board | lcsc | $16.91 | ||
| 14" x 9" x 3" Aluminum heatsink | eBay | $80.81 | 1 | |
| 1/2" × 8" × 6" Copper plate | eBay | $40.25 | 1 | |
| 10 db attenuator | eBay (henryradio) | $32.27 | 1 | |
| ARCTIC P14 Pro 140mm fans | Amazon | $34.87 | 4 | |
| Easycargo 140mm Fan Grill (4 pcs) | Amazon | $9.99 | 1 | |
| 1 Pole 7 Position Rotary Switch | Amazon | $10.44 | 1 | |
| Aluminum angle | Facebook Marketplace | $50.00 | 21 ft | |
| Aluminum sheet | Facebook Marketplace | $30.00 | 2 x 3 ft | |
| RG-142 Coax cable | eBay (rivercityrollsllc) | $39.92 | 8 ft | |
| Soldering flux | Amazon | $7.53 | 1 | |
| m4 x 12mm bolts 120 pcs | Amazon | $7.53 | 1 | |
| m4 x 16mm bolts 120 pcs | Amazon | $5.99 | 1 | |
| m4 star washers 100 pcs | Amazon | $6.19 | 1 | |
| m4 nuts 100 pcs | Amazon | $4.99 | 1 | |
| 8 Gauge Silicone Wire | Amazon | $12.91 | 6 ft | |
| 18 Gauge Silicone Wire | Amazon | $8.48 | 20 ft | |
| 18 Gauge Silicone Wire (Colored) | Amazon | $13.98 | ||
| SO-239 UHF Female Chassis Mount Connector (Pack of 3) | Amazon | $10.76 | 1 |
* This includes 9 boards: LINEAR AMPLIFIER BOARD V3.0, HF/6M LPF FILTERS 1800W, PROTECTION BOARD, RX/TX & ANTENNA SWITCH, SWR PWR TANDEM MATCH, LCD PWR SWR METER, RF DELAY BOARD, LED PANEL PCB BOARD and STEP DOWN VOLTAGE REGULATOR.
** They do 5 boards by default, there is no way to order just 1.
Tools
- I used miter saw with "TOMAX 12-Inch 100 Tooth TCG Aluminum and Non-Ferrous Metal Saw Blade with 1-Inch Arbor" disc that I bought on Amazon. I used it to cut aluminum angle.
- I used Dewalt DW331K Jig Saw to cut the aluminum sheet and to do cut outs for case fans. Here it is on Amazon.
- I got cheap Blades Set from Harbor Freight for $7.99.
- I borrowed Hakko soldering iron from my brother. I absolutely loved it comparing to my cheap, $10 soldering iron from AliExpress.
- Everything I 3D printed was done on my brothers printer. I only bought PETG Fillament.