[ARC5] SCR-274N Update
Mark K3MSB
mark.k3msb at gmail.com
Thu Sep 26 13:29:18 EDT 2013
Both the 40 and 80M transmitters have a slight chirp which doesn’t bother
me in the least.
The stability and tone on the 80M transmitter are fine, but the 40M
transmitter drifts and the tone is about T8, maybe T7. The drift is
noticeable as I sometimes have to slightly retune during a transmission.
The power supply for both transmitters is the same. It’s a hefty 28V power
transformer with a full wave bridge rectifier and a 38000 uF cap (with
bleeder) as the filter. The HV/OSC/Screen supply is completely separate.
73 Mark K3MSB
Sent from my Android phone
On Sep 23, 2013 10:23 PM, "Kenneth G. Gordon" <kgordon2006 at frontier.com>
wrote:
> On 23 Sep 2013 at 22:13, Mark K3MSB wrote:
>
> > http://www.k3msb.com/scr274n/main.html
> >
> > Just an update on my activities which includes the results of last
> > night's Classic Exchange Contest (CX) in which I ran my ARC-5 gear.
> >
> > I did this quick web page for some groups that are not familiar with
> > the SCR 274N system and were interested in my activities last night so
> > a lot of the information on this page is well known to you folks.
> >
> > 73 Mark K3MSB
>
> Ya done real good, Kid ! :-)
>
> Now all we need is a recording of how the transmitters sound.
>
> My heartiest congrats, Mark.
>
> Ken W7EKB
>
More information about the ARC5
mailing list