John Ackermann N8UR wrote:
> By the way --
>
> Despite the discussion in the article about the voltage regulator, TVB
> and I have discovered that the Wenzel ULN oscillators are very sensitive
> to external factors like power supply noise. When I was testing with an
> aged bench supply that appare
By the way --
Despite the discussion in the article about the voltage regulator, TVB
and I have discovered that the Wenzel ULN oscillators are very sensitive
to external factors like power supply noise. When I was testing with an
aged bench supply that apparently had some dried up electrolytics,
The Wenzel article mentions that care was taken to minimize power supply
noise and HEATER NOISE. I had never considered the effect of the magnetic
field from the heater winding coupling into the oscillator circuitry.
Fortunately (aka luckily), I had always wound my heater coils with 2
conductor
Hello All--
I suppose that most on this list already know all about
this, but as a newbie to considerations about low noise
oscillators, I found the Wenzel, Inc article on design
notes for ultra-low noise oscillators interesting--
Just in case anyone on the list has not seen it:
http://www.wenze
