HM-2102 Wattmeter Question

[Keith Harvey]

Richard...  While trying to chase the same problem with mine I discovered
that the 10pf cap. (C16) referred to in the last step on page 11 (Inset 2)
was missing.. Adding the cap made a big difference to the "dip" challenge,
but it didn't cure it completely..

Also check that the little sleeve in the toroid isn't actually shorting to
the coil, its easy to scrape of the insulation when inserting the sleeve.

Check your C16 to see if it was missed and use an ohmeter to check the
sleeve.

73

Keith
VA3KRV

-----Original Message-----
From: 'Richard Prescott' 'KE4VM' <KE4VM at CS.COM>
To: HEATH at LISTSERV.TEMPE.GOV <HEATH at LISTSERV.TEMPE.GOV>
Date: Saturday, June 10, 2000 10:19 AM
Subject: HM-2102 Wattmeter Question


>Hello Greenies,
>I have a VHF SWR/Wattmeter that does not want to act just right when I
follow
>the SWR Balance Adjustment procedure on page 14 of the manual.  The manual
>states that you "adjust SWR NULL trimmer C4 on the circuit board for the
best
>null or dip of the meter needle. This should be at or near zero."  I use a
>plastic alignment tool and the meter dips nowhere near zero, in fact I go
all
>the way with the pot and never reach a dip. Has anybody ran into this
problem?
>
>Actually, I have one meter that works fine and TWO have exactly the problem
>stated above.
>
>Thanks for any help,
>Richard Prescott
>KE4VM