A few calculations suggest that L9 and L10 *must* be 8.8uH, but I'll
take a look and check the board.
I agree that L11 and L12 must also be wrong - they obviously form some
tuning/matching function. To put two in series suggests the composite
value was fairly critical.
73,
Steve G3TXQ
On 13/03/2013 21:34, Steve Hunt wrote:
Barry,
I can't say for certain - I didn't lift them to measure!
They are the same style of component as L5, and clearly the values
can't be 8.2mH as shown. It seems likely the same sort of error has
been made, but whether they are 8.2uH or 820nH I'm not sure. If I get
a chance tomorrow I'll take another look at them.
I guess a quick calculation around those LPF component values -
C24/L9/C25/C26 - might also resolve it.
73,
Steve G3TXQ
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