[Hammarlund] HQ-145 misprint or what?

[Kenneth G. Gordon]

Although I have not yet looked at my HQ-145 manual, what Richard says 
below makes perfect sense.

>From your description, it sounds to me as though there is some problem 
OTHER than the one you have so far found.

Ken W7EKB

On 23 Mar 2014 at 9:25, Richard Knoppow wrote:

> These radios were done by hand. Early in the production 
> process, they probably did not have all the "normal 
>  mistakes" cataloged for the inspectors. What you have is a 
> prime example of how a test escape trashes the company´s 
> reputation rather than getting fixed in the field.
>
>      A little more. I think the 6.8meg resistor belongs as 
> shown in the BAMA manual, that is from cathode to grid or 
> pin-1 to pin-7.  Its purpose evidently has to do with the 
> manual RF gain. If it goes from pin-6 to pin-7 it puts some 
> positive voltage on the cathode from the screen grid.  I 
> can't see why this would be done. Note that the S meter 
> measures the difference between the cathode current of V-4, 
> which is on the AVC bus and V-5 which has fixed bias and 
> will have pretty constant cathode current. So, anything that 
> affects the current of V-4 will affect the way the S meter 
> reads.  Have a look at the BAMA manual and compare it to 
> what you have. I am pretty sure there are other, higher 
> resolution, manuals on the web.
>      Again, 2.2K is probably the right value for the 
> resistor to the screen grid at pin-6 and 470K the right 
> value for the control grid resistor to pin-1.

Ken W7EKB