[Boatanchors] Heathkit SB-610 monitor scope

[Jim Wiley]

Check the wiring diagram.  If the transformer winding that connects to 
these leads does not connect to anything else, then you are correct, it 
does not matter which way it is connected.  But, if there are any other 
taps on that winding, then it does matter. In that case, correct the 
wiring error before proceeding.  Some scope circuits use the trick of 
"piggybacking" a high voltage winding onto one end of a lower voltage 
winding to gain even more AC to work with.  If this is the case with the 
SB-610, the wiring error could lower the available HV by a significant 
amount.


If I remember correctly, the caps are 0.1 uFd.


- Jim, KL7CC
> On Mon, Nov 7, 2011 at 7:25 AM, Dick KF4NS <kf4nsradio at verizon.net> wrote:
>
>   
<snip>

> I also observed that the blue and yellow xfmr leads are reversed but don't believe that should be a
> problem since we are looking at AC here and don't think secondary polarity should be of concern here.
>   

<snip>