[Heath] SB-620?

[Kenneth G. Gordon]

On 13 Sep 2013 at 4:28, G3OOU at aol.com wrote:

> 
> Hi Chris
> 
> In my personal opinion the SB620 is one of the very few units that Heathkit did not get quite right. 
> All example photos that I see with signals displayed show severe signs of slew rate distortion - too 
> high a scan speed for the IFbandwidth.

Indeed! This is why I always use as slow scan speed as I can manage when doing "visual" 
alignments of IF strips.

> For displaying general band activity the '620 IF bandwidth 
> is too narrow.

Again, agreed.

> The solution is not technically difficult but the internal component arrangement makes changes 
> difficult so I propose the re-engineer my SB620 to make it more flexible and increase the vertical 
> dynamic range.

Wel, I, for one, would be very interested in your solutions, Bob. Your work has always 
impressed me.

vy 73,

Ken W7EKB