Hello - does anyone have a digital copy of the manual or a schematic
for a National RCE receiver?
Tnx and 73,
Dave N7RK
Hi Dave,
I have a hard copy of the schematic at home I can scan and send you - but
please give me until the weekend to do so.
I also have what I believe to be an RCE
There have been some interesting cases with short loaded antennas
in the BC band, the bandwidth has occasionally been so narrow that the AM
sidebands become attenuated! Not going to see that effect in the amateur
bands unless someone is running an antenna only a few feet long!!
Correct. This
Message - From: Larry Szendrei n...@securespeed.us
To: Discussion of AM Radio in the Amateur Service
amradio@mailman.qth.net
Sent: Tuesday, June 22, 2010 12:19 PM
Subject: Re: [AMRadio] Antennas
There have been some interesting cases with short loaded antennas
in the BC band, the bandwidth
As Jim says, you may be losing drive to the final grid because the drive
signal is going away. But that's not all that can go wrong. Make sure the
final grid bias resistor hasn't drifted off-tolerance or changing value as
it heats up. If it is, replace it. I have also had bad final tubes (pair
of
When you think of it, what is up with ham radio, two guys trying to work
each other with qsb, qrm, using expensive equipment, big antenna's,
towers,etc, when you could do voice and video over the internet on a cheap
laptop or an I phone...on the beach, in the den, on a train, anyplace...
Amen!
-Larry/NE1S
Good.
Rob
K5UJ
On Wed, Mar 10, 2010 at 9:01 PM, Bob Macklin macklin...@msn.com wrote:
No place in Part 97 is the bandwidth for eater SSB or AM defined.
--
Pay a visit to my amateur radio web page at:
ne1s.rfburn.org
Bob Macklin wrote:
All that is need for communications grade AM is 300Hz to 3KHz audio. Just
use a 6db/octave rolloff at 3KHz.
There is not much 3KHz or higher energy in the human voice.And we are not
supposed to be playing music.
B
All true, Bob.
But many of us enjoy listening to, and
Hello all,
I would like to notify/remind everyone that this weekend, 2/20 - 2/21,
will be the 2010 AM QSO Party sponsored by the Antique Wireless
Association.
It will run from 6PM EST Sat. through 6PM EST Sunday (2300Z Sat. thru
2300Z Sun) on 75, 40, and 20M.
More details, and a link to the
Jack Schrader wrote:
I hope you remember me, Jack with the ht20.
Got the ht20 hooked up and have god output in cw but not am. I hooked up a
100w 210v test light to the antenna output on the ht20 but when I speak into
the mic on am the light gets dimmer not brighter. Any idea about that?
I picked up a very modified BC-348-R, S/N 12436. It came with the 6AG7 in
the 1ST RF Amp socket.
Wow, that's odd. As my grandfather would have said, that's like using a
bulldozer to push a pebble.
A 6AC7 or 6SG7 would make more sense. Sure it's not one of those?
73,
-Larry/NE1S
--
Pay a
Has anyone had any experience building replicas of either the CR 5 or CR
8?
Hi Todd,
You may want to join and post to the Antique Wireless Association (AWA) list.
See http://groups.yahoo.com/group/antiquewirelessassociation/
73,
-Larry/NE1S
--
Pay a visit to my amateur radio web page at:
On sorta the same (off-) topic:
Anyone know what kind of luck I might have finding some (affordable) jazz
and/or blues in the old Edison 2-minute wax cylinder format, and where to
look?
At the AWA conference last August I bought a nice old Edison cylinder
phonograph in the flea market. The
John Lyles wrote:
This letter was in yesterday's New Mexican newspaper:
Scary science
I have a question for our glorified science laboratory Frankensteins
who need to learn to keep their egos on the leash and who are meddling
with dangerous Tesla and high-frequency active aural research
Can anyone ID this transmitter?
http://www.muchstuff.com/whut/whuta.jpg
http://www.muchstuff.com/whut/whutb.jpg
Gene Rippen, WB6SZS
It's a transmitter, and it's cute. Other than that, haven't a clue!
73,
-Larry/NE1S
--
Pay a visit to my amateur radio web page at:
ne1s.rfburn.org
Yeah, Paul, I'm in!
Will be running the PDM and Old Buzzard rigs, both of which qualify as
Heavy Metal on both counts.
-'1S
--
Pay a visit to my amateur radio web page at:
ne1s.rfburn.org
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Our Main Website: http://www.amfone.net
Bernie Doran wrote:
National decided in the HRO50 design to use a 4.3 Ohm resister in series
with the fil of both 6H6 dual diodes, ( noise blanker and detector)
dropping the fil to about 5 v. In the Hro 50-1 the noise blanker 6h6
operates at normal Volts and the detector still at reduced
Dang, that was supposed to go to Bernie directly, not to the list.
Reply button outsmarted me again...
Carry on.
-'1S
Larry Szendrei wrote:
Hi Bernie,
This has nothing to do with your excellent question, but I thought I'd
let you know I'm pretty sure I heard you last Thursday night down
Thanks for the reply, Grant. My R 390 doesn't mute when terminal 9 is
grounded. I have connected an alligator clip lead to terminal 9 and then
connected the other end of the clip lead to terminal 16 which is ground
and there is no effect. I can't figure out why there is no effect when
Yeah, when there's actually activity people gripe, when there's no
activity,
people gripe.
When folks want to start a different reflector for a special topic, people
gripe
How about we all just talk and STOP griping!!! Sheesh!! If you don't like
mail, don't subscribe!
I'm getting
Jim W4ENE wrote:
It is the sudden cutoff that the ear dislikes.
I point out the my old 51J4 sound pretty nice if
the mechanical filter is kicked out. Why? Not
only because of the increased bandwidth of the
I.F. but rather because the shape of the top of
that filtering system is so
Concerning the discussion of audio modifications to commercially designed
amateur AM transmitters:
A lot of these rigs from the 1950s (Viking I, Viking II, Valiant, DX-100)
did, in fact have pretty nasty audio in their stock state, and there are
good reasons to go in and engineer improvements in
Joe wrote:
I really don't care whether people chose to modify their old AM
transmitters to improve sound quality, as they can do whatever they
want with their radio. What does bother me a little is when people use
words like nasty and awful to describe the audio quality of some
classic
Forwarded from the AWA list. Thought you guys might like to check out
these photos. The RF PA is an 805.
73,
-Larry/NE1S
Original Message
Subject:[AWA] Homebrew progress so far...
Date: Tue, 21 Jul 2009 01:35:00 -
From: geo yak...@yahoo.com
Reply-To:
Robert Lawson wrote:
Gentlemen,
I've a Potter Brumfield KR-2349-1 double pole single throw open frame
relay. I am trying to find out the AC or DC voltage requirements as they are
not marked on the coil. The coil measures 11.7 Kohms. Any help would be
appreciated. I've already done a
One way to make an under-sized filament choke (from an inductance
point-of-view) work is to parallel-resonate it at the desired frequency of
operation with a capacitor. Practically, you can do this by adding the
required capacitance to the input tuned circuit. On the two GG amps I
built I use
Forwarding from another list, and relevant to this one...
73,
-Larry/NE1S
- Original Message -
From: kf6 pqt kf6pqt...@gmail.com
Sent: Tue, March 10, 2009 12:20
Subject:GB 40m SWBC QRM to end 3/29/09... why isnt this being hyped?
As decided by WRC-03, we get the upper part of 40
Don't forget about the AWA AM QSO party this weekend! CU there!
-Larry/NE1S
- Original Message -
From: ;w1...@att.net
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AMRadio mailing list
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My Apache modulator squeals when the microphone gain is raised
and the modulator tubes draw a lot of current. As long as the
microphone gain is kept very LOW the current does not take off
and there is no squeal coming from the modulator section. I am
going to go through the section with a
In my experience the most common cause of these symptoms isn't feedback
within the modulator itself, but RF rectification somewhere in the audio
chain prior to the gain pot.
I also wanted to add: you can determine if this is the problem by testing
the transmitter into a proper dummy load
Bob wrote:
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List Home:
Lee - you seem to be describing a different Eagle. The original post
(which John was replying to, and included in his reply) describes the
Gross Eagle as a 1933 regenerative receiver:
A 1933 Gross Radio Company Eagle regen RX, complete with all four
coils and documentation.
Think of a National
Brett wrote:
Without a tuner, you can use the antenna's on receive, even on other bands,
while with a tuner, if you get far from where you are tuned from, you
get a lot
of loss...
True statement, but specifically:
If the tuner is a high-pass filter, like the common T-network tuner
(ultimate
Nick wrote:
My preferred method is to go to a bar, have a drink, and save the swizzle
stick for later use
That doesn't work for me - Guinness isn't usually served with a swizzle
stick.
-Larry/NE1S
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Thomas F. Giella KN4LF wrote:
I did recently pass the Extra exam
and am awaiting my new 2 x 1 call of WU5D.
Tom, is that a vanity call or did the FCC assign it?
A ham I know well in NH has the callsign WU2D. Mike is a great guy,
operates a lot of AM as well as CW, and is a fellow active
Conditions on 160M last might were extremely poor for close-in stations. I
was on for the Gray Hair Net on 1945 at 8:00PM EST. I could barely hear
most stations within a 150 mile radius. Stations from 150 miles to 250
miles or so were readable but below normal strength. Stations at 400 miles
or so
Assuming the AA5 converted to the HF receiver still uses a 455 KHz IF,
you'll be mixing the RX VFO with 455KHz to generate the TX frequency.
You'll have to be careful of 455KHz harmonics (the 4th is at 1820 KHz) and
other mixing products that could fall inside the band, or close enough to
it so
Cool! You could even arrange a mechanical bandswitch to yank out the slug
or jam it back in ;-)
On 75M it was probably mixing with a harmonic of the local oscillator, as
the image of the broadcast band would be from 1450 KHZ - 2510 KHz
(assuming the radio was designed to cover 540 - 1600 KHz and
One project on my round-tuit list is to take an old AA5 junker, from which
I robbed the IF transformers long ago, into a QRP 160M AM MOPA
transmitter. I would use the local oscillator as the VFO, driving a pair
of 25L6s in parallel or push-pull, with another pair of 25L6s as plate
modulators. Then
From: [EMAIL PROTECTED]
The way I understand it,
The infinite impedance detector is a device such as a tube or FET that
normally draws output current unless reversed biased. The device is
reversed biased to cutoff and then input signal turns it on like class B
service but the input does
Great seeing and hanging with you, too, Pete.
I never see you at the NEARFEST. You should come in October. Still a
great hamfest; you'd enjoy it.
73,
-Larry/NE1S
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I just got home from The ARRL New England convention in Boxboro, MA,
after riding down and back with my friend Steve, KS1F (formerly K1MV).
The flea market was small compared to what I remember, especially
considering the perfect weather both days - not many sellers, and it
didn't seem very
Last night I used the NC-156 receiver, with its 1500 KHz IF, on the Gray
Hair Net on 1945 KHz. With the 1500 KHz filter (parallel-resonant 1000pF
and 11.25µH) in series with the antenna lead, the 1945 KHz AM signals
were strapping with only a very faint beat note which varied in pitch as I
tuned
Last Tuesday on the Gray Hair Net my neighbor Jon, N1MMD, reported that he
had heard W8VYZ back on the air. Good news; he had been in the hospital
for an anuerism as had been reported on this list. Has anyone else heard
him on, and if so, how's he doing?
73,
-Larry/NE1S
Last night I had a chance to play some more with this.
Perusing the junquebox yielded a 3-section, 400pF/section broadcast band
air variable and a piece of air-wound coil stock about 2 diameter and
about 2.5 long, #16 tinned wire, with spacing between turns about equal
to the wire diameter. The
Hi Jim,
Apologies if my post was confusing.
Yes, I'm attempting to reject 1500 KHz, which is the IF frequency.
The receiver covers 0.3 - 1.2 MHz, and 1.7 - 17 MHz, skipping a band
approximately centered about the IF frequency. Therefore, the ideal (and
impossible) filter would be a brick wall
Thanks to all that responded, still digesting the all the great
information.
Not much radio time left to play this weekend, but will try to play with
it some more during the week after work, and when I get something
working to my satisfaction, I'll report back.
Much appreciated.
73,
Hello all,
I'm working on putting an AM station together for a friend, consisting
of a Viking II and NC-156, both quite cosmetically-challenged, but
complete.
I did a bunch of work to bring them back to operation, including
significant audio improvements in the Viking.
However, the IF in
From: Todd, KA1KAQ [EMAIL PROTECTED]
Was it Chuck, K1KW?
No. I saw part of the segment. I don't recall the gentleman's name, and if
his callsign was mentioned, I wasn't in the room when it was.
73,
-Larry/NE1S
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Our Main Website:
Bob Bruno - K2KI wrote:
You do realize just how much you have dated yourself? :-)
I miss true BC AM radio. Cousin Brucie, HOA, Dan Ingram on WABC. Jones
beach... sigh...
73, cul...
Bob de k2ki
Man, Bob, so do I! But you're probably aware of the oldie's show on WABC
Sat. nites from 6:00 -
From: BSugarberg [EMAIL PROTECTED]
Hello Larry,
But in a condo, you do not own the property. All you own is the
inside of your unit.
-SNIP-
Agreed on all, Bruce. My comments were only addressing the situation of
restrictions in developments of houses or buildings on land with private
From: Ron Lawrence W4RON [EMAIL PROTECTED]
No one makes you sign the contract, except maybe your xyl...
Now THAT's coercion ;-)
73,
-Larry/NE1S
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My buddy Todd wrote:
I have to agree with Walter in that many folks move to such places
exactly for the reasons stated: they don't want to deal with
'unsightly' antennae or whatever else, they want their neighborhood
just so, etc. Anyone who freely moves there agrees to abide by these
rules
AirRadio wrote:
Has anyone built a linear using a 6C21 or 750TH, I found one of these,
sadly heater o/c in a hamfest recently and thought it might make a
great project if I could find a bit more about it and a working
example, so if you have a 6C21 or a 750TH in your junk box then I
would
From: QED Consultants [EMAIL PROTECTED]
if you could find a good HRO that would be a great real old timer, a small
tube like the 6ag7 driving a 6L6 makes a great old style 25 watt cw rig.
moving up to great AM gear would be the 75A2 or 3 combined with a 32V2
or 3,
if ssb/cw consider 75A4 and
I think I'll put a dab of JB Weld around the leaky terminal just to be
sure.
I'm not sure I'd use JB weld - I've heard (but not verified) that powdered
steel is used in it for filler. That would explain it's color, if true.
Depending on how it's applied, it may compromise the voltage rating of
I thought this would be of interest to enough of you to pass it along...
73,
-Larry/NE1S
Original Message
Subject:Solar Storm Warning
Date: Sun, 4 May 2008 20:59:27 -0400
From: Louis Vermond [EMAIL PROTECTED]
To: Louis Nancy Vermond [EMAIL PROTECTED]
Hi! I
VJB wrote:
I find it hurtful to the hobby to undercut someone's
potential interest in learning how to work on their
own gear, yet that's what this article seems to do.
I don't get it; something doesn't compute - the author of the subject
article, Joel, W1ZR, sometimes checks in to the AWA AM
Todd, KA1KAQ wrote:
On Thu, Mar 13, 2008 at 2:17 PM, [EMAIL PROTECTED] wrote:
Well, Todd, I've been guilty of referring to my R390/URR as a non-A
model, and the reason I've done so is because so many folks just say
R390 when they are really referring to the more common R390-A. Just
Ellen Rugowski wrote:
The Viking 2 is basically done - the $75 non-runner I picked up in Nov. 2007 is
up and running. Wahoo!!
Congrats, Ellen! Hope to hear you on the air soon!
I just got done fixing up a junker Viking II for a future AMer (except
he doesn't know it yet!). I got into
JT Croteau wrote:
Some misc. tube questions..
Can 6L6GC be substituted for 6L6GB?
Sure, no problem.
Are Chinese tubes worth the cost savings they generally bring? I need
to replace a pair of 6L6GB's and a 6146B.
I don't have a lot of experience with the Chinese 6L6-types, and didn't
Just a friendly reminder that the AWA AM QSO party starts in about 15
minutes from now (6PM EST Saturday), and ends 6PM EST Sunday.
You DO NOT have to be an AWA member to enjoy this event (although the
benefits of AWA membership are many!).
Details at:
geoff wrote:
Having a ball playing radio, can ya tell? ;-)
As it should be, then!
A single capacitor plate-to-plate wound probably not upset the balance
appreciably - in fact if the cap, and connections to it, were totally
symmetric it wouldn't at all. The fixed vacuum caps I've seen have an
All,
Based on feedback from some of you, and a kind offer of server space
from a ham buddy, I have moved my web pages from www.qsl.net/ne1s to
http://ne1s.rfburn.org
I think you'll find they load much faster now!
Tnx for the bandwidth! Direct any comments/feedback to me personally so
as
[EMAIL PROTECTED] wrote:
Hi Larry,
It loads a bit slow, but sure is a neat compilation.
Thanks for sharing BA info/memories like these.
73 de W4MIL
Chuck
Thanks, Chuck! I just received an offer of server pace with better
bandwidth; we shall see what transpires.
-Larry
to
read the text.
3) MAY be able to move to a server with greater bandwidth. Stay tuned!
If you were having problems loading before and gave up, try it again now
that the images have lost most of their bits.
73 and thanks for the bandwidth.
-Larry/NE1S
Larry Szendrei wrote:
Greetings
Greetings and a very happy new year to all!
Being on vacation last week, I took some time to do a major overhaul of
my web page at www.qsl.net/ne1s/
In particular, you may be interested in checking out what I've put
together for the 1926 ARRL Handbook regenerative receiver at:
Rick Brashear wrote:
Congratulations John! Keep on keepin' on, the Extra is just around the
corner.
73,
Rick/K5IAR
Never mind that - I wanna hear about the babe ;)
(Congratulations, John - CU on the air!)
-Larry/NE1S
__
Our Main
Anthony W. DePrato wrote:
Well just to start if off. i am cleaning shack and have sold about 300
units so far. still have a way to go. found a NIB tanny for a Alpha 89
Amp. and a BIG box full of Varicap. now i have been wanting a big
tuner for a long time so i have the caps. now to find the
Grant Youngman wrote:
I can't believe it; in 2008 I'll be able to join QCWA (if I decide
that's something I want to do).
Then it won't be long at all until you qualify for OOTC membership :-)
OK, so I'm dense.
OOTC = ???
-Larry/NE1S
Geoff/W5OMR wrote:
Larry Szendrei wrote:
Grant Youngman wrote:
I can't believe it; in 2008 I'll be able to join QCWA (if I decide
that's something I want to do).
Then it won't be long at all until you qualify for OOTC membership :-)
OK, so I'm dense.
OOTC = ???
-Larry/NE1S
Old OLD
Geoff/W5OMR wrote:
Mike Sawyer wrote:
Radio Shack... You got questions, we've got blank stares;)
Apparently not in Derby, KS (near Wichita).
http://hamradiocentral.biz is the website for the store, that is -also-
a Radio Shack affiliate.
I don't get anything from sending someone
Geoff/W5OMR wrote:
Yeah... I screwed up and connected the SWR bridge output to an antenna
connection on the tuner, instead of the RF input connector (DOH!)
(me and my dumb-ass! I wish hard living didn't come so easy to me!)
I told you about my latest blonde moment (with apologies to all
Ellen Rugowski wrote:
Never Mind I took a look at it . It looks like a variation on the S-38.
Nah, I don't think so.
Ellen - AF9J
It's a considerable step up from the S-38: 1 tuned RF stage ahead of the
mixer, 2 IF stages, and AC (xfmr) power supply. Pretty much an update on
the S-20R
This part was missing from a Valiant I had worked on once, and I was
able to put two shorter of the stand-offs end-to-end in series by
cutting the head of a screw and threading it into one end of each.
-Larry/NE1S
[EMAIL PROTECTED] wrote:
Jim,
Thanks for the tip on alternatives to ceramic.
Geoff/W5OMR wrote:
Someone on here (WD5JKO? NE1S? KC3OL?) had plans for a DDS digital VFO.
Who was that masked AM'er?
Tweren't me - at least not anytime soon - too many other projects! I
think Steve WD8DAS(?) has done it.
73,
-Larry/NE1S
Rick Brashear wrote:
Jim,
I have no idea where to locate the stuff, but please, let me know if you
find it. I have a couple of items here that could sure use that treatment.
73,
Rick/K5IAR
Thanks to all who responded with suggestions thus far. The
story goes, I have a WRL VFO that uses a
Saw Gary last at the Deerfield (NEARFEST) hamfest in May. My guess is
he's just taking a bit of time for himself, and will get back to you
soon. If I run into him (next fester around here is Windsor, Maine on
Sept. 8) I'll let him know you're looking for him, Jim.
73,
-Larry/NE1S
Jim Wilhite
Bry Carling wrote:
Of course Larry - you are right. Why didn't I think of that?!!
We should settle for a ham allocation at 465 kHz instead then!
Come to think of it they should just give us all of
465 to 510 kHz for AM ONLY!!
And have 500 kHz reserved as an emergency callling channel
for CW
Mike Sawyer wrote:
There is a fellow up in MA, (his call escapes me now) but he uses a 16' loop
made from tubing (1?) and a motorized vacuum variable at its base. He
claims he can go from about 1865~2000 without any problems. I worked him and
he had a nice signal for a compromised aerial.
Edward B Richards wrote:
Hi all;
Can someone tell me if a 4D32 and a 832A use the same tube socket?
Yep, they do. As a matter of fact Johnson said an 829 could be subbed
for the 4D32 in the Viking 1, with some rewiring of the socket.
-Larry/NE1S
Thanks to everyone who responded to my inquiry concerning the lack of
parasitic suppressors on old-time PP triode RF PA decks.
The reason I asked, apart from just curiosity, is that my old-buzzard
plate-modulated PP-812 rig which I put on the air just over a year ago
had a strange problem
Brett gazdzinski wrote:
These days, you typically build what you have or can get
parts to complete.
4-65's seem a poor choice, high voltage and low power.
Yes, but they're such a cute little toob. Actually I'm still trying to
decide whether it will be the pair of 4-65s or a single 813.
If
A while back Geoff W5OMR was soliciting input on what might be the cause
for low output on his Viking II exciter. Although I may have missed it,
I never saw the resolution posted here.
Geoff, did you resolve the problem? If so, I'd be interested to know the
root cause.
-Larry/NE1S
Geoff/W5OMR wrote:
Since I've never had to work on that part of the rig, I'm not sure if
there's only one nut on the front cover, or if there's another jam-nut
on the chassis, as well. That will be a pain in the butt to get to, if
that's the case.
Geoff,
I'm pretty sure there is a nut
VJB wrote:
You can also buy this stuff in camping stores, as tent
repair thread.
I had once thought about using waxed dental tape (ribbon floss) for this
purpose. Zappa would be proud...
But it appears Bry's got the real McCoy, and the price is reasonable.
-Larry/NE1S
Great stuff, Bacon!
Thanks...
-Larry/NE1S
Bob Bruhns wrote:
(a ton of great stuff)
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Help:
[EMAIL PROTECTED] wrote:
You can just see the indication of a hole or plug in the top in some of
the pix.
I seem to remember seeing promo of one of the Harvey rigs with the
antenna atteched.
I've got a few of these (junkers). There's an RCA female jack
(oxymoron?) just below the hole in the
david knepper wrote:
Is Irb, W2VJZ still active. Have not heard him on 75 meters for quite
a long time.
Word has it Irb has been having health problems, and hence he has not
been very active, if at all.
-Larry/NE1S
__
AMRadio
Jack Schmidling wrote:
About the only problem left with my Ranger is that I can not use the
xtal oscillator because it will not shut down in Standby
Maybe the 6LC6 XTAL osc. isn't wired into the keying circuit?
-Larry/NE1S
__
Jack Schmidling wrote:
Most often mis-modification:
Reducing output power when driving a linear amplifier through the use of
a T connection and a dummy load and/or reducing loading or screen
Voltage. This situation wastes one of this rig's better resources namely
modulator headroom. When
Jack Schmidling wrote:
I have read page after page of mods and changes to the Ranger to make it
suitable to drive an am and wonder why I can't just reduce the drive to
get about 15 watts out and be done with it.
What am I missing?
js
The problem is that in a Class C amplifier the grid is
You've got it, John. That accurately describes the terminals on my
BC-610D transformer, anyway.
-Larry/NE1S
John E. Coleman (ARS WA5BXO) wrote:
I think the XFMR has four connectors on one end and two on the other end.
The bottom two of the four are to be strapped and make the B+ connection
Makes sense, Brett. I was trying to work it through using diodes at the
bottom of the grid-leak resistor, and there didn't seem to be a simple
solution that way. But since I'm using the grid-leak resistor also as
the RF choke (typical old-buzzard practice), so I'd have to add an RF
choke. May
Too cool!
In some circles this would be refered to as an SBE rig.
Damn good thing that the FCC did away with that pesky rule explicitly
disallowing modulated oscillators on HF.
I'll be listening for it with my BFO on ;)
73,
-Larry/NE1S
[EMAIL PROTECTED] wrote:
...is a 204A Heising
Hi Paul!
I think you misunderstood me. I don't disagree with anything you say
below. My comment was in reply to the one advocating burying the FCC in
heckler complanits. I was advocating restraint (except for the most
extreme or recurring cases) because of the potential for unforeseen
There was an article in ER several years ago about running 3-phase
transformers on single phase, at reduced load. The recifier and filter
need to be redesigned, tho. A friend of mine is doing it successfully in
his homebrew KW amp.
-Larry/NE1S
W3CRR wrote:
...a lot (if not all) of the 5KW
W5OMR/Geoff wrote:
I checked, and 43107 is nearer to Columbus, so it wasn't as I feared,
that Ashtubula Bill had become a silent key.
That said, has Bill been active, anywhere, recently?
Never fear...
I heard A. Bill on just last weekend, being his old buzzardly self :)
Sounds the same as
Hi John,
Unless you really want to keep 'er totally original, there are several
xfmrs that would work using the Economy Supply hookup with solid-state
diodes. Use anything between a 275-CT-275 and a 375-CT-375 VAC winding
rated at a minimum of 150 mA, preferably more. I know 150 mA sounds
John,
I've run the Ranger PA of the LV B+, as indicated in a previous post,
with no overstressing of the supply. Then again, the power supply in my
Ranger is non-original - different XFMR, and solid-state rectifiers in
the economy hookup for low and high B+. The rig was a bsket case when
I
Please pardon the time warp - I guess that last one has been sitting in
my Unsent Messages folder for a while.
-Larry/NE1S
Larry Szendrei wrote:
John,
I've run the Ranger PA of the LV B+, as indicated in a previous post,
with no overstressing of the supply. Then again, the power supply
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