In a message dated 11/26/06 3:27:46 PM, [EMAIL PROTECTED] writes:
> Have you guys in the N.E., East & West coasts had the same lack of
> short skip on 75 after dark?
>
Same thing here in SOCAL.
Dennis D. W7QHO
In a message dated 11/15/06 8:52:10 AM, [EMAIL PROTECTED] writes:
> Remember, always be extra careful using..Oh. La for
> testing
>
Many aficionados prefer..YYYEII!
Dennis D. W7QHO
Gle
Don,
I'll take this one.
Dennis D. W7QHO
Glendale, CA
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ill worth 12 bucks, I
guess.
Dennis D. W7QHO
Glendale, CA
*
Previously:
In a message dated 10/19/06 11:39:03 AM, W7QHO writes:
>
> Print the coupon picture below.
>
> http://www.harborfreight.com/cpi/emails/42/RetailB/images/1.jpg
>
>
> Cupon worked FB at Pasadena, C
In a message dated 10/19/06 9:00:05 AM, [EMAIL PROTECTED] writes:
> Print the coupon picture below.
>
> http://www.harborfreight.com/cpi/emails/42/RetailB/images/1.jpg
>
>
Cupon worked FB at Pasadena, CA store. They had a good pile of them in
stock too.
Dennis D. W7Q
Paul,
Band was LONG out here. West Coast NC (N6PY) Q2 at best and Qzip here in
Glendale most of the net. WA0ZHH finally relayed me in from OK.
Dennis D. W7QHO
Glendale, CA
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All,
The West Coast Military Collectors Net meets at 8:00 PM Pacific Time Saturday
on 3983 kHz. Listen for us and please join in if propagation permits.
Dennis D. W7QHO (NC)
Glendale, CA
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In a message dated 9/27/06 3:28:54 PM, [EMAIL PROTECTED] writes:
> His tx is a McMartin 2.5KW BC running on a low tap with
> a pair of 4-1000's in the final loafing at 500 watts carrier.
>
>
Modulation mostly downward too, no doubt.
Dennis D. W
ays (3983, 8 - 9 PM Pacific). Will start
listening for stateside DX lower down.
Dennis D. W7QHO
Glendale, CA
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What bands are we talking about on this thread? (Did I miss something?)
Dennis D. W7QHO
Glendale, CA
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(Sep. 24)
between Ft. MacArthur and other locations in the Palos Verdes Peninsula we use
for
this event. Used a pair of SR-42s for the test but will be running SCR-522,
ARC-1, ARC-4, etc. stuff during the event.
Dennis D. W7QHO
Glendale, CA
modulator deck would be the place. Presuming the
power control wiring is original, of course.
Dennis D. W7QHO
Glendale, CA
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resting here?
Dennis D. W7QHO
Glendale, CA
mply
> because it's 'old'?
>
Because $50 is the price the seller put on it. Doesn't seem so complicated
to me..
Dennis D. W7QHO
Glendale, CA
single ended output of your ATU and
> > see what happens. SWR figures might be better (but could also be worse).
>
John,
Did you ever try this? If so, what were the results?
Dennis D. W7QHO
Glendale, CA
Hey guys,
Guess I'm one of the culprits too. In a hurry and made a mistake. Lighten
up already.
Dennis D. W7QHO
Glendale, CA
Electronics as
> their part number TX-245 at a price of $19.50. My price is $5 each. 10
> available. Buy several and get your money's worth out of a postal flat rate
> box.
>
Don,
I'll take 3 of these.
Dennis DuVall, W7QHO
1524 Princes Dr.
Glendale, CA 91207
In a message dated 7/27/06 8:52:12 PM, [EMAIL PROTECTED] writes (in part):
> > Dateline, Washington, DC
> >
> > The FCC today took what they described as an important new step to
> > reduce QRM on amateur frequencies by setting standards for voice
> > speeds.
>
Got it working. Offer still holds.
Dennis D. W7QHO
Glendale, CA
er in
LA area. ON IT'S WAY TO THE LANDFILL SHORTLY IF NO TAKERS.
Dennis D. W7QHO
Glendale, CA
818-240-7907
In a message dated 7/14/06 4:05:38 PM, [EMAIL PROTECTED] writes:
> Dell has gone down hill drastically...
>
GO APPLE GUYS!
Dennis D. W7QHO
Glendale, CA
and other later models were not silk screened.
Etching (?) process was used that left the panel labeling raised above the
surrounding painted surface. Earlier versions used engraved front panels.
Don't exactly when the change took place.
Dennis D. W7QHO
Glendale, CA
Don,
I'll take this one is still available.
Dennis D. W7QHO
Glendale, CA
In a message dated 6/16/06 11:07:53 AM, [EMAIL PROTECTED] writes:
> I have often thought that a large remotely rotatable ferrite based loop
> on the roof or attic would be real nice for those "difficult" times.
>
Bill,
Give a "small" tunable loop a try.
Dennis D. W7QHO
Glendale, CA
In a message dated 6/14/06 12:19:38 PM, [EMAIL PROTECTED] writes:
> I appreciate this list and got my
> DX-100 due to a "for sale" message on here!"
>
I seem to remember steering you on to this deal. SX-42 came with it. Ever
get this setup on the air?
Dennis D. W7QHO
Glendale, CA
st to the net (or anyone else's
business) I'll distribute it accordingly.
Not really a big deal to me either way, though. Most reflectors seem to go
"to the list" as someone else noted.
Dennis D. W7QHO
Glendale, CA
In a message dated 6/4/06 8:13:09 PM, [EMAIL PROTECTED] writes:
> Does it matter the type of tube, 833 or 592 r
>
What's a "592 r" tube? Can't find it in Fathauer or Sibley. See
references to a 592 and a 592/3-200A3 but neither looks like a substitute for
an
we speak. See my earlier e-mail to you on
getting a 223 on the air.
Just curious, which TU's do you have.
Dennis D. W7QHO
Glendale, CA
Hearing OR, CO, AZ, OK & TX out here 2000 - 2100 Z. All SSB, though,
NOTHING up in the AM window. (Yes, I did call CQ on 29.0.)
Dennis D. W7QHO
Glendale, CA
the B+ and Plate ends othe windings. Any markings on your
unit?
Dennis D. W7QHO
Glendale, CA
In a message dated 5/27/06 4:05:00 PM, [EMAIL PROTECTED] writes:
> Called CQ quite a few times between 2230 and 2300 today (Saturday).
>
etc., etc.
Not hearing anything on 10M out this way.
Dennis D. W7QHO
Glendale, CA
asic" model included a constant voltage xformer for
the PTO filaments.
Dennis D. W7QHO
Glendale, CA
Sat., 8:00 - 9:00 PM. Also 1885
occasionally.
1885 kc used to be the traditional AM hangout freq. but use seems
intermittent nowadays.
Dennis D. W7QHO
Glendale, CA
ayPal, MO, personal check,?
Dennis D. W7QHO
Glendale, CA
In a message dated 4/14/06 9:05:49 AM, [EMAIL PROTECTED] writes:
> Will sell set for 50.00 plus shipping.
> Thanks, Byron.
>
Byron,
I'll take a set.
Dennis D. W7QHO
Glendale, CA
Military Radio Collectors Group 2006 Meeting
May 5 – 6, Camp San Luis Obispo, California
The eleventh annual meeting of the Military Radio Collectors Group will be
held at the NCO Club, Camp San Luis Obispo, California from May 5 to May 6,
2006. Events will formally begin at 0800 Friday morni
red several interference free telephones to one guy who refused to
even give them a try ("I don't want your damm phones!").
If the guy's wife is your wife's best friend ya gotta play nice, of course.
Ditto if he's your landlord, boss, your minister, etc., but I personally
wouldn't touch anyone's expensive music and/or entertainment systems.
Dennis D. W7QHO
Glendale, CA
responding to your transmissions then HIS equipment is malfunctioning, not
yours.
Dennis D. W7QHO
Glendale, CA
In a message dated 3/28/06 1:47:38 PM, [EMAIL PROTECTED] writes:
> (1) Change screen grid voltage to ~450V,
>
Wow, that's pretty hot for an 807. What kind of screen dissapation numbers
are you seeing with this?
Dennis D. W7QHO
Glendale, CA
ut rather rounded off, hence my characterization of
AB"1.25" The stock bias supply is not very stiff either so flops around when
any
grid current is drawn.
Dennis D. W7QHO
Glendale, CA
rks FB
but
a non-trivial undertaking. Swapped a pair of EL-34s for the 807s in another
VII; regulated the screens but left the rest of the audio string original.
Worked just as well as the AB2 mod and MUCH easier to do.
Dennis D. W7QHO
Glendale, CA
In a message dated 3/18/06 8:48:57 PM, [EMAIL PROTECTED] writes:
> I would be interested in that Dennis.
> TNX.
> Mod-U-Lator,
> Mike(y)
> W3SLK
>
Mike,
Are you good in QRZ?
Dennis D. W7QHO
Glendale, CA
In a message dated 3/19/06 10:01:34 AM, [EMAIL PROTECTED] writes:
> I would appreciate a copy of this info.
>
> Healthfully yours,
> DON W4BWS
>
Don,
Are you good in QRZ?
Dennis D. W7QHO
Glendale, CA
. Both articles cover
essentially
the same ground. For those who requested more information on the scheme I
will
include a copy of the CQ article along with my later discussion as published
in ER.
Dennis D. W7QHO
Glendale, CA
the difference.
The original author called it a "Reference Shift Modulator." Can provide
more information if anyone's interested.
Dennis D. W7QHO
Glendale, CA
nd positive peak levels can be easily read by slowing down the
trace. Flat-toping can be clearly seen at higher sweep speeds. Admittedly,
a trapezoid display can provide additional information but I've never found it
worth the trouble.
Dennis D. W7QHO
Glendale, CA
; > Harry,
> > In the January, 2004 issue of Electric Radio, there is an article on
> > the DX-60...
>
Also, see ER# 133 (May 2000) and 140 (Jan. 2001)
Dennis D. W7QHO
Glendale, CA
Could be legit. The "GA" tubes he he's selling sure don't look like the
run-of-the-mill 6BG6's. His test not vety scientific but ordinary 6L6, 6BG6,
807, etc. examples would get red in the face under such treatment.
Dennis D. W7QHO
Glendale, CA
Don,
I need one each of the 7 and 9 pin socket savers.
How much PP to 91207?
Dennis D. W7QHO
Glendale, CA
;t find the story in my ER 179 (Ap[ril
2004).
Dennis D. W7QHO
Glendale, CA
Also, see ER #105, January 1998. In a lead-in to the article, the editor of
the mag (then N6CSW) makes reference to Don "Hoisey" Hoisington, W4CJL and
future articles on Supermodulation. However, a search of the ER index reveals
no further mention of the subject.
Dennis D. W7QH
News -- Sept. 1948; June 1949; Feb. 1950; May 1950; July 1950
R. ETaylor, "Modulation System," U. S. Patent No. 2,282,347, May, 1942
Dennis D. W7QHO
Glendale, CA
6C pair in my Yaesu FT-101B. Bought the rig
in 1975 and have operated it regularly ever since, mobile, fixed, SSB and AM.
Dennis D. W7QHO
Glendale, CA
of 6KD6s on the e-place.
Dennis D. W7QHO
Glendale, CA
Dennis D. W7QHO
Glendale, CA
Gary,
Thanks.
Dennis D. W7QHO
Glendale, CA
00's, single 4-1000A, 3-1000Z or one of the big Russian tubes I've
seen on eBay recently. I use my HB 3-1000Z amp on both SSB and AM, BTW.
Works
FB.
Good luck with the project.
Dennis D. W7QHO
Glendale, CA
***
Original message dated 1/30/06 12:08:03 PM, [EMAIL PROTECTED] write
In a message dated 1/27/06 10:45:49 PM, [EMAIL PROTECTED] writes:
> Can anyone look up the part number of the AM filter for the SB-300/301/303
> receivers?
>
Steve,
My SB-300 Assembly Manual lists two different units, #404-201 and
404-M201P22.
(3.75 kc bandwidth)
Dennis D. W7QHO
lectrical
> Engineer but I don't believe he worked in the antenna field before starting
> SteppIR. That was born from his interest in ham radio.
>
> www.steppir.com
>
Clever application of long understood and applied techniques. Original and
innovative but hardly a state of the
;
> > Richard L. Tannehill P.E. - W7RT
>
>
All,
Let this idiot know what you think about his position.
[EMAIL PROTECTED]
[EMAIL PROTECTED]
Dennis D. W7QHO
Glendale, CA
figures might be better (but could also be worse).
Line will probably radiate too if you do this but so what? I ran delta loops
this way for several years with good results.
Dennis D. W7QHO
Glendale, CA
In a message dated 1/11/06 9:18:50 AM, [EMAIL PROTECTED] writes:
> I'm afraid of what I'm doing to the
> tuner/transmitter at that amount of reflected power.
>
John,
What kind of a tuner are you using and where are you measuring the SWR?
Dennis D. W7QHO
Glendale, CA
90, or 85% I get splatter if the audio would exceed
> 100% negative, so the circuit seems to do no good.
>
Brett,
What circuit are you using? The ones I referenced don't call for variacs or
auxiliary power supplies.
Dennis D. W7QHO
Glendale, CA
ficant effect on
this. Splatter is generated in the PA tank circuit when plate voltage is
suddenly cut off on the audio negative half cycle. Same splatter would be
produced if the PA was being fed straight off the secondary of the mod
transformer.
Dennis D. W7QHO
Glendale, CA
on the chassis side for HV connections. Clever solution.
Dennis D. W7QHO
Glendale, CA
Let me cast a vote for the Globe 755(*). Built in PS and high output.
Uncommon, though.
Dennis D. W7QHO
Glendale, CA
7;s wrong with an antenna strung over the house? I've been doing that
here for years running legal limit AM and SSB with no problems.
Dennis D. W7QHO
Glendale, CA
here the other night +20 on 3880.
K1JJ strong also. The "long" condx have been playing hob with our local
nets, though.
Cheers,
Dennis D. W7QHO
Glendale, CA
you intend to use? In any case,
can't see that fanning out at the feedpoint would be necessary or useful.
Dennis D. W7QHO
Glendale, CA
In a message dated 11/13/05 10:38:49 AM, [EMAIL PROTECTED] writes:
> So, what the hell do I do with it? Wrap some wire around the protruding
> pins and solder it?
>
That's the way I do it. Don't use perfboard, much though.
Dennis D. W7QHO
Glendale, CA
er?
>
>
>
Try them and give us a report.
Dennis D. W7QHO
Glendale, CA
say 50's to early 60's.
Orr's "Radio Handbooks" are great too as has already been mentioned.
Dennis D. W7QHO
Glendale, CA
hat the
939 works fine with the antennas for which it was designed.
In the past I owned the gray painted version of the device which came with my
T368s. Full of nice components and very well made but wouldn't match any of
the antennas I had in use at the time.
Dennis D. W7QHO
Glendale, CA
ntenna is not a very "long" wire even at 18 MHz.
The term is usually used to describe wires measured in wavelengths as
opposed to feet and inches, see various ARRL and other antenna books.
Agree the BC-939 works well when used with the short antennas for which it
was designed.
Dennis D. W7QHO
Glendale, CA
available at reasonable prices. Had no problem accumulating a lifetime supply
for my T368.
Dennis D. W7QHO
Glendale, CA
pair of 811s). Special
transformer for sure, but the circuitry is otherwise simple and
straightforward. Works great.
Dennis D. W7QHO
Glendale, CA
The military T-368 does this with an 80K screen
dropping resistor off the 2500 volt HV supply and applies modulation to the
plate of
the
4-400 PA only. The same technique was applied in the T-195 (4X150D PA, 1KV
plate supply).
Dennis D. W7QHO
Glendale, CA
of description, theory and
discussion can be found in the various published handbooks and antenna manuals
(ARRL, Editors and Engineers, etc.) from the 1930s up to the present time.
Dennis D. W7QHO
Glendale, CA
In a message dated 8/3/05 8:08:07 PM, [EMAIL PROTECTED] writes:
> The 1962 ARRL handbook has a single 4-400A amplifier, which I think is
> the original question
>
Grid driven circuit, dual mode, AB1 and class C.
Dennis D. W7QHO
Glendale, CA
consider running a pair. I can copy the article for you.
Dennis D. W7QHO
Glendale, CA
llicrafters sets had 2000
and
5000 ohm outputs the these require a matching transformer which was included
in Hallicrafters speakers of the period.
Dennis D. W7QHO
Glendale, CA
Didn't this subject get beat to death back in January of this year?
Dennis D. W7QHO
Glendale, CA
In a message dated 7/7/05 3:22:37 PM, [EMAIL PROTECTED] writes:
> Is anyone here familiar with the LMO drive on a Heath SB unit?
>
>
BOB,
I've been into the one on my SB-300. What's the problem/question?
Dennis D. W7QHO
Glendale, CA
Grant, NQ5T, got it right. I would only add DON'T SCREW UP THE ROTATION!
Write down a list of participants, keep it current as people check in and out
and, above all, keep track of who passes the turn to you and who gets it next,
i.e., stay in the game.
Dennis D. W7QHO
Glendal
In a message dated 6/23/05 10:49:50 AM, [EMAIL PROTECTED] writes:
> Since you sold this thing on Ebay, whether you are
> right or wrong, your feedback may reflect your next
> step. Think carefully before proceeding.
>
I dunno, one or two negative feedback's really a problem? Also, the
se
Ed,
Sorry to hear about your health problems. Have forwarded your message on to
a couple of guys who might be interested.
73,
Dennis D. W7QHO
Glendale, CA
nyone know more?
Dennis D. W7QHO
Glendale, CA
h in
the "AM" mode adds a carrier to it's normal USB output. Observed that to
sound good it had to be adjusted so that on the scope it looked like DSB AM
modulated about 50%.
Dennis D. W7QHO
Glendale, CA
eak resistor, though.
Anything 1 to 10 megs FB.
Dennis D. W7QHO
Glendale, CA
really. Need Voltage and current in, and voltage and current out
specifications. Also, look for identifying nomenclature beginning with DY, DM
or
PE. EX, DM-28-A, PE-103, etc.
Dennis D. W7QHO
Glendale, CA
John,
Yes, you're right, it is high level modulation. I didn't look closely
enough. Would require a filament transformer for the 807 with high voltage
insulation (at least 1200 volts in Jim's circuit). Same basic series scheme a
PCM
rig uses with higher efficiency.
se on the air sounding very
good.
Dennis D. W7QHO
Glendale, CA
6 with some updates for using several popular
sweep tubes in place of the 807 originally employed by Hileman.
Dennis D. W7QHO
Glendale, CA
pair of 6AV5s with a
3-diode ultramod circuit running 200% positive modulation peaks. Had real
punch!
Interest died out after a year or so as I recall.
Condx permitting, we military collectors run QRP AM regularly with our GRC-9,
BC-654, BC- 1306, WS-19, etc. equipment.
Dennis D. W7QHO
Glendale
FT-243 size
xtal inside.
On the question of a 243 to 171 adapter, come on, guys, simple job to make
one up.
Dennis D. W7QHO
Glendale, CA
ing it entirely outside the building when an electrical
storm threatened.
Dennis D. W7QHO
Glendale, CA
trumentation (narrow
receiver,
etc.).Seems like a philosophical rather than an engineering issue to me.
Dennis D. W7QHO
Glendale, CA
itude of these. Northeastern hams will remember the
YYYEII tune-up wail frequently used by one well know
AMer.
Dennis D. W7QHO
Glendale, CA
e carrier level into 50 ohm dummy load is 1400 watts measured
> and a really NICE orange glow! This is with a 200 cfm blower, air system
> socket and chimney.
>
>
I run a 3-1000Z much the same way. Takes somewhat less drive but gives the
same "NICE orange glow!"
Dennis D. W7QHO
Glendale, CA
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