Re: New assembled High Bands QDX went into smoke
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Good nob, Paul, and a good component selection. I checked the current handling capacity of the 1N4448 to make sure it was adequate...looks good.
I may run a sim with it but my first take is there will be no noticeable difference as the result of lower capacitance. The nodes the diode attaches to are insensitive to capacitance.
JZ
On Mon, Jul 17, 2023, 12:33 PM Paul Christensen < w9ac@...> wrote: Attached is a photo of a 1N4448 diode placed across L14.? This diode has half the junction C of its brothers, the 1N4148 and 1N914.? I doubt it matters although it would be interesting to adjust the diode's Ct parameter in LTSpice to see if there's any adverse high frequency effect.? Even if it did, distributed lead C may swamp any benefit.??
Paul, W9AC
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