Seems to me these types of advertisements were quite popular back in the
50's and 60's. I remember National, Hallicrafters, and several other
manufacturers using this type of ad in QST, CQ, and 73 mags. It clearly
states at the bottom that it's an advertisement. What's the big deal?
Next, are we go
Excellent idea, Ron. I hope they take you up on the offer.
I especially enjoyed your point, "QST is in business to sell advertising and
to promulgate any initiative which increases advertising revenue regardless of
how it affects the membership."
I wonder how many people noticed the "fake art
I have invited the board and officers of the ARRL to participate in a
quarterly webinar at my expense to answer to the membership in real time for
their activities.
I will forward you a copy of my letter to them today.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] O
There used to be a group that operated AM on 50.4 and 144.4 here in the Puget
Sound area.
I have been wondering if any of these people may be reading this list?
Bob Macklin
K5MYJ
Seattle, Wa,
"Real Radios Glow in the Dark"
__
Our Main W
Someone mentioned using the driver transformer from a Viking 11. It may work
ok if there is enough audio from the driver. The difference is that in the
Viking 11 the 807 modulators run AB2 and draw some grid current on peaks.
This requires a low impedance drive source so the driver transformer in
t
Bill Robert W5APN is going to send you what he did and a schematic...
His sounds fantastic on the air...Best Valiant I have ever heard...
Bob W1PE
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Markavage
Sent: Monday, October 22, 2007 7:41 PM
To: a
I've been corresponding gently and respectfully with League and IARU
officials (sometimes of course they are the same) in opposition to the new
"band
plan" that places restrictive limitations on transmitted signal bandwidths on
the
bands 160 - 10m. I've also compared notes with friends who
Add another 12AU7 and just direct couple it. Common way to do it in many
Hi-Fi amplifiers.
Pete, wa2cwa
On Tue, 23 Oct 2007 00:03:37 + [EMAIL PROTECTED] writes:
> Greg,
>
> Thanks for the advice. I'll check out the AES website. I'm thinking
> you're referring to the Hammond 124D or 124E int
The stock Valiant used 600 Volts for the HV section. According to the
book CCS is 480 and ICAS is 600 volts for Class C modulated RF amp.
Given the duty cycle of ham transmitters using 600 volts is safe. They
actually will stand more than that. The Apache/DX 100 used about 750
volts loaded,
Greg,
Thanks for the advice. I'll check out the AES website. I'm thinking you're
referring to the Hammond 124D or 124E interstage driver xfmrs they sell.
My Valiant uses the 12AU7 driver tube just like your Ranger but mine feeds a
pair of 6146's whereas your Ranger uses 1614's. I'm not enough o
I really have no idea Bill...
Bob
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Monday, October 22, 2007 6:01 PM
To: Discussion of AM Radio in the Amateur Service
Subject: RE: [AMRadio] Johnson Valiant Audio Driver Xfmr - Wake Up
About a year ago I fixed a Ranger with one of the transformers from Antique
Electronics supply. I think what you're looking for is a common 3:1 or 4:1
interstage with a center tap. Right?
Go to the Tubes and More website and they should have them listed there. If
I'm not mistaken it's the trans
IS this what you need?
http://wa5bxo.shacknet.nu/HAMPICTURES/AB1%20Audio%20driver%20XFMR.jpg
and
http://wa5bxo.shacknet.nu/HAMPICTURES/AB1%20Driver%20XFMR.jpg
These are driver XFMRs for grids of 807, 6146, etc. And running class AB1.
Nearly any driver tube that can handle a load down to 10K
Bob W1PE said:
> I have a Viking II interstage
>transformer that was taken out
>of my Viking II when I put in the 812 that you can have if it will work.
Bob,
How much plate voltage will the stock VKII tank components handle?
I have a VKII chassis in need of a serious rebuild and have been conside
Bill...Just scrap the Speech amp and drive it with the W2IHY with the
812 or use a $65 Beringger
on it. Let me tell you works great. I have a Viking II interstage
transformer that was taken out
of my Viking II when I put in the 812 that you can have if it will work.
I do not know what the differen
In my quest for a replacement for the interstage audio driver transformer (T4)
for my 1957 Valiant I transmitter I got a "wake up call" as to how expensive a
new one from Peter Dahl can actually be.
The quote was $189.66 plus $11.94 for freight and handling. Delivery is 4-6
weeks!
I had no id
Good info and practice tests at:
http://www.aa9pw.com/radio/
Steve WD8DAS
**
See what's new at http://www.aol.com
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[EMAIL PROTECTED] writes:
> Last night I was tuned to WKBN 570 A.M. which at one time had a 50 plus
> mile range when I was treated to a Spanish speaking station from who knows
> where. At the time I was within ten miles of the WKBN transmitter. I wonder
> what
> they will foul up next? Bob
I think the Gordon West W5yi books are excellent.
--
Ernie, k0occ
Atlanta, GA
-- Original message --
From: "Donald Sanders" <[EMAIL PROTECTED]>
> The ARRL Technician and General study guides are good as are the Radio
> School books. Contacting the VEC is also a go
The ARRL Technician and General study guides are good as are the Radio
School books. Contacting the VEC is also a good idea.
I use the ARRL books here with students.
Healthfully yours,
Don W4BWS
- Original Message -
From: "david knepper" <[EMAIL PROTECTED]>
To: <[
Last night I was tuned to WKBN 570 A.M. which at one time had a 50 plus mile
range when I was treated to a Spanish speaking station from who knows where. At
the time I was within ten miles of the WKBN transmitter. I wonder what they
will foul up next? Bob AB8OP
A local elderly gentleman wants to get his ticket. What instructional
materials would you suggest?
A guess I should contact a local VEC.
Thank you
Dave, W3ST - W3CRA
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Lis
Guess I mis read what he wanted...The transformer works great not using
the built in speech amp...
Bob W1PE
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jim Candela
Sent: Sunday, October 21, 2007 9:01 PM
To: Discussion of AM Radio in the Amateur Servic
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