[Elecraft] Question about KNB2 Noise Blanker (Gain reduction in NB2 posit...

[Ken G3WCS]

G3VVT at aol.com wrote:
> 
> Hi Ken,
>  
> This effect of gain reduction when NB2 is selected does not happen on my K2.

Hi Chaps.


Thanks to all for the replies.

I have fixed the problem now. It was the 2N7000 FET (Q6) on the KNB2 
board. I used an anti-static wrist strap and mat during construction so 
thought ESD protection was OK. Maybe faulty from the start. Maybe me. 
Who knows?

Anyway, working correctly on both NB1 and NB2 now with no reduction of 
gain. Just need to find another 2N7000 for my XV60 board.

Thanks again and Happy New Year.

Ken.

-- 

Ken G3WCS <ken at g3wcs.com>
IO83rh : Cheshire : NW England
(+44) (0)870 765 1632 (home)
(+44) (0)7733 400 950 (mobile & sms)