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Substitution of varactors in N40A


 

Hi all,
I was intending to substitute a 1SV149 (www.qsl.net/df7tv/datasheets/1SV149.pdf) for the MVAM108. www.mouser.com/ds/2/453/mvam108-838374.pdf

The 1sv149 is listed as a substitute for the MVAM109 in a 2N2 40+ I am chipping away at!

Sooo maybe its OK?????

Regards and 73

Alun VK4LUN


 

I am using a 1SV149 on my production PCB.
I'm getting almost 44KHz tuning range.

I was using a 1N4007 before that getting 33.5KHz.

John Sutter
W1JDS CM87xi


 

Thanks for that John.
i went back and read your Build description, excellent reading.

Very witty actually. i always think of stuff like that after I've posted....

keep up the good work.
73
Alun VK4LUN