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Preamp mod for Yaesu FT-890AT [message #149] Mon, 26 November 2007 21:57
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Registered: December 2004
Senior Member
Try this Preamp mod for the Yaesu FT-890AT...

Yesterday we made a similar modification, as I mentioned with my FT-990.

My friend (HA5AUC) have an FT-890. We changed the parallel-connected gg 2SK125's in the preamplifier stage to J310's. (Q2008 and Q2006) (Be care with the different pin-out!).

Results: bit less noises, bit more gain.

HA5BWW
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