RadioBanter

RadioBanter (https://www.radiobanter.com/)
-   Antenna (https://www.radiobanter.com/antenna/)
-   -   "Symmetrical double-L matchbox tuner" (https://www.radiobanter.com/antenna/69739-%22symmetrical-double-l-matchbox-tuner%22.html)

J. Mc Laughlin April 28th 05 01:57 PM

Dear Cecil:
You are correct. A schematic for the 974 and for the 976 may be found
on MFJ's site (at least this morning).
I do not have a clue why I did not find the schematic for the 974 the
last time that I looked.

Here is the link to the manual for the 974: (schematic is on page 8)
http://www.mfjenterprises.com/man/pdf/MFJ-974H.pdf

73 Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"Cecil Moore" wrote in message
...
J. Mc Laughlin wrote:
The last time that I went to MFJ's WEB
site, I was no longer able to see the tuner's schematic.


The manual, including the schematic, is available as a
.pdf file from MFJ's web site.
--
73, Cecil
http://www.qsl.net/w5dxp





Ed April 28th 05 06:35 PM


Thanks for the correction. The last time that I went to MFJ's
WEB
site, I was no longer able to see the tuner's schematic. I should
have made a better record when I was able to see the schematic. One
does not think of that until the manufacturer removes what should be
an important part of their advertising.


If you are referring to the MFJ 974H, I printed out a schematic for
that some months ago. Glad I did, now that it is no longer available on
their web site.

If you really want a copy, I could scan it and email the .jpg file to
you.



Ed K7AAT


Butch Magee April 28th 05 07:48 PM

Ed wrote:

Thanks for the correction. The last time that I went to MFJ's
WEB
site, I was no longer able to see the tuner's schematic. I should
have made a better record when I was able to see the schematic. One
does not think of that until the manufacturer removes what should be
an important part of their advertising.



If you are referring to the MFJ 974H, I printed out a schematic for
that some months ago. Glad I did, now that it is no longer available on
their web site.

If you really want a copy, I could scan it and email the .jpg file to
you.



Ed K7AAT



I would really like one Ed. Can you just post it here?
Butch KF5DE


Cecil Moore April 28th 05 08:22 PM

Butch Magee wrote:
I would really like one Ed. Can you just post it here?
Butch KF5DE


http://www.mfjenterprises.com/man/pdf/MFJ-974H.pdf
--
73, Cecil, http://www.qsl.net/w5dxp

----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

Richard Clark April 28th 05 11:46 PM

On Thu, 28 Apr 2005 13:48:16 -0500, Butch Magee
wrote:
This is a multi-part message in MIME format.

Why?

Ed April 29th 05 02:46 AM





I would really like one Ed. Can you just post it here?
Butch KF5DE



Butch, its not necessary, as has been noted in this thread. MFJ DOES
have the schematic available on their site.

Check: http://www.mfjenterprises.com/man/pdf/MFJ-974H.pdf

Its on page 8.


Ed K7AAT

Ed April 29th 05 02:48 AM


On Thu, 28 Apr 2005 13:48:16 -0500, Butch Magee
wrote:
This is a multi-part message in MIME format.



Why?



Because there is a French ham reading this group, and he is a part
time "mime". He wants his messages in "mime" format.












Ed


W9DMK April 29th 05 03:31 AM

On Fri, 29 Apr 2005 01:48:12 GMT, Ed
wrote:


On Thu, 28 Apr 2005 13:48:16 -0500, Butch Magee
wrote:
This is a multi-part message in MIME format.



Why?



Because there is a French ham reading this group, and he is a part
time "mime". He wants his messages in "mime" format.


I think I know him - is his handle "Jambon"?


Bob, W9DMK, Dahlgren, VA
Replace "nobody" with my callsign for e-mail
http://www.qsl.net/w9dmk
http://zaffora/f2o.org/W9DMK/W9dmk.html


Reg Edwards May 13th 06 07:33 PM

"Symmetrical double-L matchbox tuner"
 

I can't understand the aversion to simple, 2-wire, choke baluns
instead of complicated (can be lossy), awkward to adjust, narrow-band,
balanced-to-unbalanced tuners.

Praps it's because it is how a broad-band choke balun works is not
understood. Yet it is childishly simple.

Some people are happy only when tormenting themselves in their hobby
of amateur radio. I suppose the more difficult it is to tune up the
greater the satisfaction to be obtained in accomplishment.

There's no accounting for human idiosyncracies. Everybody please carry
on enjoying yourselves as normal.
----
Reg.




All times are GMT +1. The time now is 11:10 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
RadioBanter.com