[Elecraft] OT: Hi-Fi audio amplifier kit

[Thomas Horsten]

A low-pass filter on the output works well, and is easy to construct if the
power is reasonable! A 3-pole Chebyshev filter works well.

In the datasheets for these amplifiers there's usually a recommendation to
do as much unless the cable to the speaker is very short (ie. built into the
unit).

73 de Thomas M0TRN

On 30 April 2011 10:48, Sverre Holm (LA3ZA) <LA3ZA at nrrl.no> wrote:

> Be aware that class-D (digital) audio amplifiers like this, in combination
> with long loudspeaker wires, don't always go so well with amateur radio.
> Sometimes they radiate well into the lower short-wave range. Unless of
> course, you turn off the stereo whenever you turn on the radio ...
>
>
> Phil Townsend wrote:
> >
> > Tripath based diy kit
> > These sound VERY good and cheeep!
> >
> > http://diyparadise.com/charlize2.html
> >
>
> -----Sverre, LA3ZA
>
> K2 #2198, K3 #3391
> LA3ZA Unofficial Guide to K2 modifications --
> View this message in context:
> http://elecraft.365791.n2.nabble.com/OT-Hi-Fi-audio-amplifier-kit-tp6315361p6319224.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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