Df9ic 23cm copper plate
WebMy first DF9IC 23cm 250W PA board has been running for a month and it is working well, although I think the output capacitor positions still need a little optimisation. I am using the 9160s from utsource.net and the professional PCBs direct from Henning. ... I am using a water-cooling plate for the PAs. The heatspreader is a copper block 100mm ... WebThe 23 cm band runs from 1240 - 1300 MHz. (MGM, RTTY,..) Most weak signal contacts in CW or SSB are made within the frequency segment of 1296.150 to 1296.280. During periods of high activity these ranges might be a bit larger.
Df9ic 23cm copper plate
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WebJun 18, 2024 · I now have a stock of PCBs direct from Henning. They are on SHF laminate and have PTHs. I also have a few spare MRFE6S9160HS FETs. If anyone isn't feeling up to the exhilarating task of soldering the FETs and PCBs to the spreader, I … WebI am using a water-cooling plate for the PAs. The heatspreader is a copper block 100mm x 71mm x 12.7mm. After 3 minutes of full power, the heat spreader temperature close to the FETs is 23.5C. I think that is cool …
WebJun 10, 2024 · DF9IC 23cm 250W PA copper heatspreaders available. Neil Smith G4DBN. #50289. I've just made a new batch of the heatspreaders for DF9IC 23cm 2 x … WebCopper sheet and copper plate find use in a huge array of applications. One of few metals that doesn’t need to be extracted from ore (i.e., it is directly usable in its natural state), copper exhibits excellent thermal and electrical conductivity, good ductility, and a natural resistance to corrosion. Copper plate and sheet offer excellent ...
WebStep 4: Making the Copper Electrode. Take a fourth of the copper scoring pad (half of what is left of the one you pulled apart) and create a "teardrop" shape. You want the fatter end to be very tightly packed so that it doesn't float; the electroplating process creates bubbles which can get trapped in your wire mesh.
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