The amp I’m building is the W6JL design that won the ARRL homebrew contest a couple of years ago, (see attachment) it was designed to run on 40m but does work on the higher bands albeit with reduced power, it’s not too dissimilar to the amp that Farhan mentioned in an earlier post. As you say Paulo, these devices do work very well indeed on the low bands but they do work on the high bands also. Kevin GW4WOV From: Paolo Cravero Sent: Monday, February 24, 2014 1:20 PM To: minima@xxxxxxxxxxxxx Subject: [minima] Re: A linear for the Minima About input gate capacitance, we are talking about: IRF510, 135 pF typ IRFZ24: 370 pF typ IRFZ44: 1770 pF typ While the latter two may be OK for 160/80 and maybe 40 m bands, driving them on higher bands will be hard (too low impedance, see what Farhan wrote yesterday). What I love about this linear is that it can be built and tested while waiting for Minima PCBs to arrive. Since we're dealing with higher level RF I am afraid a PCB might require few revisions before becoming 100% stable and reproductible. A Manhattan style is probably better for the unexperienced. Mr Farhan, I hope you will publish a picture of existing Minima Linear(s), as a guidance for those that will begin building it right away. 73, Paolo IK1ZYW
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