[Boatanchors] HQ-180 Need Help

John Page k4kwm at hotmail.com
Thu Dec 1 20:09:48 EST 2005


Update on the HQ-180.

As the ameco pre amp helped so much, I have been checking the front some 
more. This is what I have found so far.

The local osc 6c4 grid was at about -10 volts. should be around -6. The darn 
thing must have been almost cut off. The grid resistor was at 100k as it was 
supposed to be. I had to put in a 47k to get the grid at -6 volts. This in 
turn got the grid of the 1st mixer from -1.5 up to -3 where its supposed to 
be. Also the screen of the 1st mixer was at 90 volts and the screen resistor 
was correct at 6.8k. Had the go to a 2.7k resistor to get 110 volts on the 
screen. The receiver will blow you off the chair now on the broadcast bands 
and signals were heard on bands 3 and 4 also. Bands 5 and six are a whole 
lot better now also.

I guess I am wondering why I am having to re-engineer this thing?

I suspect a total re-alignment will also be in order. Setting up the 60kc IF 
is a pain in the tush.

If I have found all this stuff so far, there has got to be some more wrong 
with it. So I will "keep on truckin' ".

Thatnks for all the support guys, John

John Page K4KWM
Hollow State since 1953
(ex W8PKU,N8BLB,NA8O)




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