LOL! That's funny!
73,
__
Clay Autery, KY5G
(318) 518-1389
On 04/24/20 18:21, Dale Boresz wrote:
I have a stack of QST magazines from 1996 resting on top of my Astron
VS-35M. No transformer hum at all!
Have not tried magazines from any other years, so YMMV...
73,
Dale -
Yes, '96 was a quiet year alright.
On Fri, Apr 24, 2020 at 6:22 PM Dale Boresz wrote:
> I have a stack of QST magazines from 1996 resting on top of my Astron
> VS-35M. No transformer hum at all!
>
> Have not tried magazines from any other years, so YMMV...
>
> 73,
> Dale - WA8SRA
>
> On Fri, Apr
I have a stack of QST magazines from 1996 resting on top of my Astron
VS-35M. No transformer hum at all!
Have not tried magazines from any other years, so YMMV...
73,
Dale - WA8SRA
On Fri, Apr 24, 2020 at 4:09 PM Nate Bargmann wrote:
> * On 2020 24 Apr 11:50 -0500, inventor61 . wrote:
> > If s
On 4/24/2020 2:15 PM, Keith N6JPA wrote:
> You should purchase an Astron Switching power supply. They are well
> made and filtered properly. I use a SS-25M that has a fan that runs at
> times, but it is not too loud.
I use a SS-50M and "not too loud" is a matter of judgment. It is
located on top
You should purchase an Astron Switching power supply. They are well
made and filtered properly. I use a SS-25M that has a fan that runs at
times,
but it is not too loud.
On 4/24/2020 9:48 AM, inventor61 . wrote:
I have a CAD design for a replacement wooden top for the RS-35, -35M, and
VS-35M
Actually, I have had MUCH more success in isolating the transformer
mechanically from the chassis with the aforementioned Sorbathane.
https://www.sorbothane.com/Data/Sites/31/pdfs/product-guides/Sorbothane-SPG.pdf
< catalog of standard products.
I use isolation studs they have metal fas
* On 2020 24 Apr 11:50 -0500, inventor61 . wrote:
> If someone has a better idea than mine for making these, I am all ears.
No better idea. I've read in times past of someone sandwiching some
compressible material between the transformer and the supply top cover
to quell or reduce the hum. I hav
On 4/24/2020 8:17 AM, Robert Sands wrote:
My Astron hums loudly only when the fax machine runs. Otherwise silent.
?interaction puzzling.
This strongly suggests one or more mis-wired outlets in your home.
Things like phase (hot) and neutral reversal, neutral and ground
reversal, or an addition
I just got the PS back together and online again. I was astounded to discover
that the transformer bolts were actually just shy of hand tight. I tightened
them up and found that that quieted the thing down a lot. Not completely, but
to a very large extent.
The bolts holding the transformer to t
material between the side of the case
and transformer.
Hank
K4HYJ
- Original Message -
From: Eric Garner (garn...@gmail.com)
Date: 04/24/20 12:57
To: Elecraft Discussion List (elecraft@mailman.qth.net)
Subject: Re: [Elecraft] OT: Astron RS-35M Transformer Hum
Has anyone tried using
Has anyone tried using something like Dynamat (used to damp vibrations in
cars). To keep the case from resonating?
On Fri, Apr 24, 2020 at 9:17 AM Fernando Sindeaux via Elecraft <
elecraft@mailman.qth.net> wrote:
> I have an Astron RS-35A, and also hums, not too loud, but if the Shack is
> in sil
I have a CAD design for a replacement wooden top for the RS-35, -35M, and
VS-35M Astron supplies. This top cover looks exactly like the factory
steel cover, uses the same mounting holes, and even has an exact duplicate
of the vent slots.
The material that worked out best was a HDF board. It can b
I have an Astron RS-35A, and also hums, not too loud, but if the Shack is in
silence, I can hear it, low but can be heard.
73 to all,
Fernando, PY1BL
Sent from my iPhone
> On Apr 24, 2020, at 12:17 PM, Robert Sands wrote:
>
> My Astron hums loudly only when the fax machine runs. Otherwise sile
My laser printer has the same effect.
-de John NI0K
Robert Sands wrote on 4/24/2020 10:17 AM:
My Astron hums loudly only when the fax machine runs. Otherwise silent.
?interaction puzzling.
On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote:
David -
I have an RS-35M, that sits on a shelf under
My Astron hums loudly only when the fax machine runs. Otherwise silent.
?interaction puzzling.
On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote:
> David -
>
> I have an RS-35M, that sits on a shelf under my operating desk. I leave it
> on 24/7, and never gave any thought to acoustic hum from it.
David -
I have an RS-35M, that sits on a shelf under my operating desk. I leave it
on 24/7, and never gave any thought to acoustic hum from it. I just ducked
my head down below the desktop, and 'thought' I could hear some hum. I
turned off the power supply and verified that there is a little bit t
Fairly common. I have a different Astron linear supply and have had that
issue. Make sure the cabinet and transformer screws are tight. Assuming
there's a relatively small gap between the top of the transformer and the
top of the case, stick something between the two surfaces (folded piece of
pa
Does anyone have a way to dampen the physical hum generated by the transformer
in an RS-35M PS?
This really is just transformer hum I’m hearing, not signal hum…my station is
fully bonded and as a result quiet in that regard. Most folks probably never
hear this hum, but I have been “blessed” w
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