[Heathkit] thanks for the help on bias problem
Ron Youvan
ka4inm at tampabay.rr.com
Sun Dec 18 21:45:26 EST 2011
dale wt4t yash at aol.com wrote:
> Thanks to all for the help with the bias problem on the sb-101. neutralized the finals ,didn't help so reworked all the grounds on the driver board area and tightened all the mounting screws, cleaned tube pins and cleaned the tube shield fingers on the tube bases and the covers. Fired it up and all is well in river city. Bias is now fine on every band and full out on each band.
> new question, the audio on the 101 sounds very shrill,tinny and very touchy to tune in clear,both usb/lsb. Iam I missing something in the alignment or setup that would cause this ? or is this the nature of the beast. I saw sveral articals on component changes on a coupla of boards,but to get into the boards after they have been mounted,looks like damage waiting to happen.
> thanks again to everybody that had a idea on the bias problem
I would guess one or more audio coupling and or bypass capacitors are no longer new, but need to be.
--
Ron KA4INM - Did you know ...
... that no-one ever reads these things?
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