Want to make a passive SWL preselector
 

Hi!

I am interested in making my own SWL preselector..

Anyone knows where I can find information in the web or direct me to
where I can find the information needed to make one?

Thanks..
Alvin Mirabal
WP4IDK

On 20 Jul 2004 16:16:42 -0700, (Almir) wrote:

Hi!

I am interested in making my own SWL preselector..

Anyone knows where I can find information in the web or direct me to
where I can find the information needed to make one?

Thanks..
Alvin Mirabal
WP4IDK

for medium wave band?

---
J. M. Noeding, LA8AK, N-4623 Kristiansand
http://home.online.no/~la8ak/c.htm

Google to the rescue!

"Simple antenna tuner":

http://www.radiohc.org/Distributions...na-tuner2.html

http://www.antennex.com/hws/ws0500/pinet.htm

http://www.hard-core-dx.com/nordicdx...lab/tuner.html

http://www.qsl.net/wb3gck/tuner.htm

Go nuts ... have fun.

jw
k9rzz

John..

Thanks for the websites.. I will keep them as reference..

Unfortunately an antenna tuner and a preselector are not exactly
the same thing as most people think..

But thanks for the information provided.. as a matter of
fact I am going to make a mini-tuner from one of your sources..

Thanks a bundle!

:-)

73's

Alvin WP4IDK

(J999w) wrote in message ...
Google to the rescue!

"Simple antenna tuner":

http://www.radiohc.org/Distributions...na-tuner2.html

http://www.antennex.com/hws/ws0500/pinet.htm

http://www.hard-core-dx.com/nordicdx...lab/tuner.html

http://www.qsl.net/wb3gck/tuner.htm

Go nuts ... have fun.

jw
k9rzz

Hi!

Well.. not exactly for the medium wave band.. but mostly
for the 120 and 90 meter shortwave bands.

Do you have information available?

Thanks..
Alvin
WP4IDK


J M Noeding wrote in message . ..
On 20 Jul 2004 16:16:42 -0700, (Almir) wrote:

Hi!

I am interested in making my own SWL preselector..

Anyone knows where I can find information in the web or direct me to
where I can find the information needed to make one?

Thanks..
Alvin Mirabal
WP4IDK

for medium wave band?

---
J. M. Noeding, LA8AK, N-4623 Kristiansand
http://home.online.no/~la8ak/c.htm

On 21 Jul 2004 15:50:39 -0700, (Almir) wrote:

Hi!

Well.. not exactly for the medium wave band.. but mostly
for the 120 and 90 meter shortwave bands.

Do you have information available?

Thanks..
Alvin
WP4IDK

I've shown one covering 1.75-7.2MHz with single tuning capacitor and
two equal coils on http://home.online.no/~la8ak/c21.htm - no difficult
coil winding.

-jm
---
J. M. Noeding, LA8AK, N-4623 Kristiansand
http://home.online.no/~la8ak/c.htm

Behold, J M Noeding signalled from keyed 4-1000A filament:

On 21 Jul 2004 15:50:39 -0700, (Almir) wrote:

Hi!

Well.. not exactly for the medium wave band.. but mostly for the 120 and
90 meter shortwave bands.

Do you have information available?

Thanks..
Alvin
WP4IDK

I've shown one covering 1.75-7.2MHz with single tuning capacitor and two
equal coils on http://home.online.no/~la8ak/c21.htm - no difficult coil
winding.

I like that one!

Only I'll use 2 x 12AT7 and a 6AL5 ;-)

--
Gregg t3h g33k
"Ratings are for transistors....tubes have guidelines"
http://geek.scorpiorising.ca

Perfect!

I think this is what I was looking for!
Wonderful!

Thank you very much!

Alvin Mirabal
WP4IDK
Puerto Rico



J M Noeding wrote in message . ..
On 21 Jul 2004 15:50:39 -0700, (Almir) wrote:

Hi!

Well.. not exactly for the medium wave band.. but mostly
for the 120 and 90 meter shortwave bands.

Do you have information available?

Thanks..
Alvin
WP4IDK

I've shown one covering 1.75-7.2MHz with single tuning capacitor and
two equal coils on http://home.online.no/~la8ak/c21.htm - no difficult
coil winding.

-jm
---
J. M. Noeding, LA8AK, N-4623 Kristiansand
http://home.online.no/~la8ak/c.htm