[sdiy] 45 vs. 90 degree pcb traces

[Harry]

Ok most of that is hooey! The curved traces were because the layouts were done with black "crepe" tape on Mylar. Curves are easy to do. That was superseded by red/blue Mylar tape which does not do curves. In  short, for audio frequencies there will be no difference. A good two layer or multilayer board would way outperform anything from the 1970's. 

Sent from my iPhone

> On Feb 14, 2020, at 2:10 PM, Harry <hbissell at wowway.com> wrote:
> 
> 
> 
> Sent from my iPhone
> 
>>> On Feb 14, 2020, at 1:50 PM, Jimmy Moore <jamoore84 at gmail.com> wrote:
>>> 
>> 
>> This came up on the AH "behringer RD-6" thread:
>> 
>> >>Until the PCB traces are curvy (like on a 2600 or SEM) it's never going to sound authentic.   Electrons don't like corners.
>> 
>> I had picked up similar folk knowledge from my first engineering job working alongside techs, EE's, and designers.  I went looking for a more technical explanation on why this is the case, and it turns out it is NOT: 
>> 
>> https://resources.altium.com/pcb-design-blog/pcb-routing-angle-myths-45-degree-angle-versus-90-degree-angle
>> 
>> (Notable exceptions being RF, high speed, or high voltage layouts)
>> 
>> This and another resource debunk the pcb corner myth on EMI effects.  
>> 
>> Is there any other tangible (audible) impact this decision could have for music electronics?  I think not, but I'd love to hear from other more experienced engineers on this (hopefully not tiresome) topic.
>> 
>> 
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>> 
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