[Heathkit] HR-10B Question

[Bwana Bob]

Randy:

It sounds like an AGC problem, since S-meter voltage is usually derived 
from the AGC rectifier. I don't know if the AGC on the HR-10 is supposed 
to be on for CW/SSB. It depends on if the AGC is derived from the 
envelope (A.M) detector or from the I.F. or product detector.

				
				73,

				Bob WB2VUF
Randy wrote:
> I decided the other day to re-fire the old 10b. But their seems to be a slight problem that maybe someone can help me with.The rx is as hot as they can get,pulls in the weakest signal just like it did when I built it.All tubes have been checked,all are good to go.But when it rx a modulated signal of any type the s meter moves backwards with the modulation instead of forward.Anyone ever had this problem before? Any help would be appreciated to get this corrected.Merry Christmas to all the green glowers that keep the world smiling.
> Randy
> 
>