[Elecraft] Re: Elecraft digest, Vol 1 #295 - 11 msgs - smoked R10

[Don Brown]

Hi

I think you have R10 in the K2 confused with R10 in the KPA100. Rolf was =
working on the KPA100 when R10 smoked. I would look for a diode in backwa=
rds (D1-D8), a bad Q8 or T3 shorted or installed wrong. T3 is a bifilar w=
ound toroid and it is easy to strip the twisted wires too far allowing th=
em to short. Also check that U4 is installed correctly and look for solde=
r bridges around U4 and the HV supply.

Don Brown
KD5NDB

----- Original Message -----
From: Jeremiah J McCarthy
Sent: Friday, October 04, 2002 8:35 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Re: Elecraft digest, Vol 1 #295 - 11 msgs

If R-10 is cooked, don't you think you should research the area around
T-5 instead of T-3? =20

Jerry McCarthy,wa2dkg

1. drinking one glass of french red wine
2. going to bed and next day:
3. looking at the area around T3 (because R10 has become black)
does anybody have any specific suggestions?
(Steps 1 & 2 will be performed in any case, hi)=3D20
--=3D20
Best Regards
Mit freundlichen Gr=3DFC=3DDFen
Rolf Schr=3DF6der, DL8BAG, K2#806

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