YEP you are that guy south of me i sent it too hi..
been cooking in one of my HT 32's for a week now. I am off next week and
going to pull the tranny out of my Globe Champ 350A and send it to Gary to
rewind.
cu on the bands
73 Tony
At 10:33 PM 12/22/2004 -0500, you wrote:
Hi Tony,
I don't k
My RCA ET-4336F is a SBE. Due to the fact it uses single source B+. Its
legit though because I am not intentionally modulating the oscillator. The
PM/FM is being generated due to poor voltage regulation. The rig uses a
Thyrite resistor with taps for the bias voltages. It is pretty simple but
no
Hi Tony,
I don't know if I am the John you referred to, but Merry Christmas and a
happy, healthy and prosperous New Year to you, too.
73,
John, W4AWM
I have not received anything for 2005 either and have had an outside space
for many years.
Season's greetings to all.
John, W4AWM
73 all,
looking for a 350-0-350 @ 300-350mA transformer.Not interested if 6.3V & 5.00V
there are or not.
Merry Christmas and the happiest 2005 to all ya & ur families!
Chris SV1DAF.
From [EMAIL PROTECTED] Wed Dec 22 22:29:44 2004
Return-Path: <[EMAIL PROTECTED]>
X-Original-To: amradio@mailman.qth
Equipment Rack for Collins Radios with blower.
Weight: about 200 pounds.
Price: $75
Location: Wilmington DE. Pickup Only.
The following name plate is on the rack:
Cabinet. Electrical Equipment
CY-1807/C
Oneida Electronics, Inc
Order No. 15498-PP-63
Contact John KS3E ( [EMAIL PROTECTED]
Peter, I have not gotten anything from the Dayton Hamvention Committee?
I suspect that we may see something by January, 2005.
Please let me know if you get the customary packet for outdoor vendors.
Thank you.
Dave, W3ST
Publisher of the Collins Journal
Secretary to the Collins Radio Association
> I get a chuckle when someone tells me they are using a "homebrew dipole"
I have to confess, as a young teen Novice my Dad and I put up a "storebought
dipole" - one of those HyGain jobs with traps for 80/40/15 meters.
Pre-Elmer, I didn't really know any better. For Christmas that year my
folks
Ed,
My recent EL-34 project runs linear AM with a single tube biased and
driven for AB2. With a resonant tank circuit on the plate you don't have to
run class A for single ended class linear amplifier. You are correct for
most audio circuits however.
Regards,
Jim WD5JKO
-Origina
Steve,
What about some of us AM'ers that have a sub-audible frequency shift with
modulation due to poor power supply regulation, and decoupling? This is
pretty common with some of our "cherished" vintage equipment. It does have a
beneficial effect though in that it when strong discourages a SSB st
In a message dated 12/22/04 4:14:03 PM, [EMAIL PROTECTED] writes:
> > Yup, I own one NOS. Manual is of course on BAMA.
> >
>
> Under what name?
>
>
Found it! Advert in CQ, July 52 page 51. The company was MARMAX in
Alamogordo, NM. BAMA site has manual for the mobile and 1 KW modul
I would not modulate the oscillator, Steve. You would probably get more
FM than AM. Low level means the early stages of a transmitter. You should
have a buffer stage between the osc and the mod to prevent pulling the
osc during modulation. All stages after the modulator have to be linear.
That mean
I found an interesting web site that has a lot concerning AM. It has
detailed theory on Ampliphase modulation for a 50KW am broadcast
transmitter. I think the rig at the following link could firmly establish an
"AM Window". :-) Back up a notch with your browser for other neat topics
such as trf re
Hi John:
MERRY CHRISTMAS MY FRIEND
GOD BLESS
73 TONY WA4JQS
Anthony W. DePrato WA4JQS
Since 1962 AM
U.S. NAVY 63-70 USS ESSEX CVS 9 USS WASP CVS 18 VAW 121 SOG RVN 68-70
WA4JQS / VP8BZL / VP8SSI / 3Y0PI
CQ DX Hall Of Fame # 35
Hi , it is illegal to use a modulated oscillator below about 2 meters. It
will work but adds FM even to a crystal oscillator. In fact commercial vhf
equipment using crystals actually phase modulate the crystal oscillator to
get FM. They of course go through several multiplications to get the plus
a
Hi Steve: Yes, Rothman Modulation is a sort of "clamp tube" modulation
where a tube is placed at the antenna output point and the RF is "clamped"
to look like 100% modulation. As I recall, it mainly modulates downward to
acheive modulation because there is no sideband power from the modulator
to a
Hi All:
As I understand it, low level modulation is anything prior to the amp.
Therefore, is it possible to modulate the grid oscillator RF input signal -
crystal or otherwise - and expect an AM output?
Next question: how?
Regards,
Steve
WA2TAK
There was a Rothman circuit, worked well but I would not use it today.
The tube in the antenna lead could generate harmonics without a low pass
filter, at the band of operation.
Mike was correct, Taylor Modulation did and does exist, dont tell the
collectors but I modified an ARC-5 for Taylor. Us
Hi Bob: Nice reply. I like to work 7290 +/-, especially Sunday afternoon.
If we had 3 sidebands, I would listen there too.
73 DE Charlie, K0NG
PS, being ex Air Force, we naturally liked "flight before fight".
Quoting Rbethman <[EMAIL PROTECTED]>:
> Seems like a hornet's nest has been stirred
Has anyone, who was a outside vendor this past year (2004), received a
packet of info to reserve your same spaces for the 2005 Hamvention. I
thought this stuff was suppose to be in our hands already. E-mail to the
flea market chairman has gone unanswered.
Pete, wa2cwa
As the year draws to a close I want to say thanks to many of you who assisted
me with several restoration projects during the year. Your support, schematics
and suggestions for improvement along with on the air tests once again affirmed
the strong bond of friendship between Ham's and those of u
I would like to know more, here's all I ever found.
--
From: [EMAIL PROTECTED]
Subject: [AMRadio] AM space
Hello All:
It is my observation that there is a goodly amount of 'open'
space from 14.3 to 14.35 MHz. most of the time.
Conditions are not favorable as 75.
In a message dated 12/22/04 12:50:52 PM, [EMAIL PROTECTED] writes:
> Yup, I own one NOS. Manual is of course on BAMA.
>
Under what name?
Dennis D. W7QHO
Glendale, CA
Don't tear it up!
Maybe someone on the MIL list might want to collect it. I posted
it over there. Please don't part it out if it's complete..
- Original Message -
From: Roger Parsons <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, December 20, 2004 5:44 AM
Subject: [Amps] Mar
What kind of "crappy" antennas are you using, i.e., doublets fed with coax,
open wire lines, etc., or end-fed wires? Or, some combination of types
maybe?
Rather that building up a bunch of tuners you might consider putting your
efforts into erecting a set of antennas that all worked direct
and go here to see what he might do in his spare time (no I'm not sure)
http://k1man.itishot.us/
Don't go there with children around ok??? It's the 'Home Sex Network'
73
vince
ka1iic
On Tuesday 21 December 2004 03:18 pm, peter A Markavage wrote:
> Go here for a view of the area in Maine:
> ht
The transmitter is at One Long Point the same as his home. The transmitters
are in a run down old lodge behind his house. Nothing special.
Yo might find it interesting that Belgrade Lakes is the mythical "On Golden
Pond' from the movie... Now I will tell you why the 'pond' is 'golden'...
Thi
Mike,
I'd give AM a try on 15 meters.
Maybe a sked?
73,
Russ
WA3FRP
As 10 meters began its decline a few years ago, I would often ask AM
operators if they ever used 15 meters. With very few exceptions, the answer
would usually go something like: "No, because I never hear anyone else down
there."
There was AM activity for a brief time around 21.400, and on 21.43
What do I need to do to be able to print manuals on the BAMA website? Do
I need Netscape?
Bob: You do not mention which type of file you have downloaded. There are
file types GIF, DjVu, PDF and others. Also you didn't mention if you
downloaded from BAMA itself or the mirror site.
Ch
What do I need to do to be able to print manuals on the BAMA website? Do I
need Netscape?
Also, I am looking for a 575A HV Rectifier or the solid state plug-in
diodes. Anyone have some to sell?
I am in the process of converting a Collins 20V-3 for 75M. I was reading
some of the "AM Window" di
Yup, I own one NOS. Manual is of course on BAMA.
de KA4JVY
Mark
--- David Knepper <[EMAIL PROTECTED]> wrote:
> Wasn't there a commercial modulator using the "Rothman" circuit some years
> ago. I remember seeing it somewhere in a catalog.
>
>
> Dave, W3ST
> Publisher of the Collins Journal
Geoff -
This year's Rally is next year, second week of January as I recall.
Ray said that some people complained about it being too close to the
holiday. I'd tend to agree, if it were on Christmas eve and not
Christmas night and the following day. Hopefully no one will tell the
CW folks that SK n
and in that same thread, I was looking at a 506PIR 101st A/B website today
and saw a picture of a paratrooper in bastogne, that looked amazingly like
the son of a good friend of mine. Imagine my surprise when I read the caption
and discovered that indeed, it was his grandfather, my good friends
Helluva day... 60 years ago today, General McAuliffe was telling the Germans
what they could do with their suggestion that he surrender Bastogne...and on
this day 80 years prior to that, General Sherman was giving the city of
Savannah to President Lincoln as a Christmas present.
73, Don Merz,
> Quote - "Then those aren't what we call "real hams". I don't think I
> know of an AM Radio Operator that would be caught *dead* running a
> store-bought dipole antenna. Them folks are no more than an appliance
> operator."
> In today's world of amateur radio, what does the phrase "real hams
You have given me an idea Don. My next building project will be a home brew
dipole. What a great idea
73 Jim
W5JO
- Original Message -
From: "Donald Chester" <[EMAIL PROTECTED]>
To:
Sent: Wednesday, December 22, 2004 9:12 AM
Subject: Re: [AMRadio] The AM Window
Then those ar
Seems like a hornet's nest has been stirred up, and I am ONE of those
that stirred it up.
I won't apologize.
First - I stay away from 75mtrs like the plague. Too many "lids" whom
are obviously running WAY too much RF out for "their" local NE area
"group"! THEY won't even recognize anyone ou
Quote - "Then those aren't what we call "real hams". I don't think I
know of an AM Radio Operator that would be caught *dead* running a
store-bought dipole antenna. Them folks are no more than an appliance
operator."
In today's world of amateur radio, what does the phrase "real hams"
really mean
Maybe, just maybe we are all too excited about this am
thing. Or maybe I'm just a casual operator, but when I
get on in the late afternoon, things are ususally
pretty quiet, and I can have a nice qso with someone.
If the band is noisy, I'll go do something else. If
there are ssb stations on, I will
Wasn't there a commercial modulator using the "Rothman" circuit some years
ago. I remember seeing it somewhere in a catalog.
Dave, W3ST
Publisher of the Collins Journal
Secretary to the Collins Radio Association
www.collinsra.com
Nets: 3805 Khz, Monday/Wednesdays 8 PM EDST
14250 Khz S
I saw some stuff too... if I understood, Rothman and others are
experimenting with FM on a room-temperature laser to get precise
spectrographic readings from low-cost gear. Kind of scientific ham stuff.
Bacon, WA3WDR
- Original Message -
From: "Geoff/W5OMR" <[EMAIL PROTECTED]>
To:
S
> >Then those aren't what we call "real hams". I don't think I know of an
> >AM Radio Operator that would be caught *dead* running a store-bought
> >dipole antenna. Them folks are no more than an appliance operator.
>
> I get a chuckle when someone tells me they are using a "homebrew dipole". I
There is already an AM group on approx 14.286. I haven't run 20m AM since
the early 70's. It is OK for one-on-one contacts, but when roundtables
develop, there is the problem of the erormous skip zone on 20. You can
count on one or more members of the roundtable being inaudible, so you spen
This is a new term, for me. So, a Googling I went.
Not much information on Rothman Modulation, but there was some.
Perhaps someone else on here can add to this?
73 = Best Regards,
-Geoff/W5OMR
--
Article: 101889 of rec.radio.amateur.bo
Then those aren't what we call "real hams". I don't think I know of an
AM Radio Operator that would be caught *dead* running a store-bought
dipole antenna. Them folks are no more than an appliance operator.
I get a chuckle when someone tells me they are using a "homebrew dipole". I
assume,
Hello All:
It is my observation that there is a goodly amount of 'open' space from 14.3 to
14.35 MHz. most of the time.
Conditions are not favorable as 75...but having ample 'elbow room' sure feels
good.
Would it be worthwhile to consider an AM gathering location there?
PS: anyone familiar wi
> The reasons, as
> mentioned earlier, antenna is cut for 3885, have no VFO, have only 1
> crystal, SSB'ers will get mad at me, transmitter is only tuned for 3885,
> etc., etc. always seem to be the answers.
Then those aren't what we call "real hams". I don't think I know of an
AM Radio Operator
Well if they use "offensive language" it is guaranteed that they
will probably get the attention that they so desperately crave.
That is basically what it is down to, for these insignificant,
self-loathing babies that try so hard to offend others. They
are really just a little child inside an ad
This may interest some of our AM friends in the "frozen north."
Usual disclaimers.
- Original Message -
From: Roger Parsons <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, December 20, 2004 5:44 AM
Subject: [Amps] Marconi AM Transmitter
> A friend of mine (VE3AC) has an old (19
Actually Geoff, in a number of published band plans, including the
ARRL's, 29.0 to 29.2 is actually designated as an AM slice of
frequencies. Not that we have exclusive use but at least a "noted
agreement". And, as I had been saying in earlier e-mails, like yourself,
3885, 7290, 14.286, 50.4 are de
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