[AMPS] (no subject)
km1h@juno.com
km1h@juno.com
Tue, 1 Dec 1998 10:44:08 -0500
On Mon, 30 Nov 1998 22:21:25 -0800 zeitler@ibm.net writes:
>
>>> Hi Alan and the Group,
>>> The most reliable, best amp ever built for amateur use was the
>>>Drake L-4B.
>>
>>The RF deck..yes. the PS was worse than Heath or Dentron. I would
>guess
>>that amp (and the L-7) were designed by 2 committees that never
>talked to
>>each other.
>
>Perhaps Sir Carl, perhaps.
Hey...cut out that sir stuff!
For unknown reasons R.L. Drake engineers
>chose to
>run only c. 2700 volts on the plates which is a real shame. The amp
>really
>likes HV or around 3600. This is a beutiful amp to add 160. Lots of
>room in
>and around the main tank L. Very rugged tune C cap was used. Glass
>chimneys,
>etc...
The ultimate conversion is plugging in a pair of 3CX1200A7's, building a
real PS and driving with a cranked up FT-1000D.
>The L-7 is a complete and total piece of dried up fecal material in
>comparison. Very cheesey RF deck. Same dc supply. yeah, 160 is a nice
>add-on
>but in this case too much ruggedness was compromised.
Also a pain to work on below deck but still a high dollar amp considering
the age.
>The L-4B was an "updated" L-4. The L-4 was designed when lots of folk
>were
>still running "lock-to-talk" AM service. Guess that would explain the
>lower
>Ep now that I think about it.
We still had the 1KW/2KW input rules back then, I doubt if AM had
anything to do with it.
Better to run a cool kilobuck than try
>to
>inflate the tubes/amps capabilities, eg, Ameritron.
Ameritrons weak spot is the output network design and some components. A
few low buck changes would really make the Al 82, 1200 and 1500 fly well.
Dont know about their newer offerings.....sounds like just more jumbled
MFJ marketing philosophy....bombard the customer with too many choices
and he will pick one just from sheer exhaustion!
>
>The 2K-4 is a nice deck too with a REAL choke filtered supply. Not
>sure why
>Henry took so long to get onboard with the idea of top band.
Couldnt make it work maybe ?
Lots of old 2K's getting updated with bigger tubes and scrap the choke
and 3B28's. There is at least one here locally using a pair of 8877's and
160M add-on.
>
>Most bang for the buck is the SB-220, SB-200, Cliperton-L. They can
>be
>picked up for a song if they have soft tubes.
I'm looking for SB-220's.
>It's late and my contacts are getting sticky.
I just got up so missed out on the continuation of last night!
73 Carl KM1H
>
>Later and God Bless you and the family,
>
>Lane in San Diego
>Kilo Mexico Three Germany
>>
>>
>>Second to that is the Command HF-2500.
>>
>>Down on my list Lane. Many Alphas and the Titan would be ahead.
>>At least we agree that Henry is not on any of our lists!
>>
>>73 Carl KM1H
>>
>>
>>>
>>> Lane Zeitler
>>> KM3G
>>>
>>>
>>>
>>>
>>> >73, Dan Magro W7RF, (member SCDXC, SCCC)
>>> >Rugged, Reliable Henry HF Amps are "Instant on" for RF Power
>now!
>>> >DXers/Contesters/Ragchewers get your HENRY from RADIODAN for
>>>LESS!
>>> >***Subscribe to the HENRY reflector at www.qth.net
>>><http://www.qth.net>
>>> >***
>>> >www.radiodan.com <http://www.radiodan.com>
>>>RFpower@radiodan.com
>>> ><mailto:RFpower@radiodan.com> A trip to our web site is worth
>the
>>>click!
>>> >
>>> >
>>> >
>>> >
>>> >> -----Original Message-----
>>> >> From: Alan Gray [mailto:agray@voicenet.com]
>>> >> Sent: Monday, November 30, 1998 9:21 AM
>>> >> To: Radiodan W7RF; K4ab@aol.com; cq-contest@contesting.com
>>> >> Cc: amps@contesting.com
>>> >> Subject: RE: [AMPS] (no subject)
>>> >>
>>> >>
>>> >> "Radio" Dan-
>>> >>
>>> >>
>>> >> Before you confuse your marketing efforts with technical
>fact,
>>>in
>>> >> the final
>>> >> analysis your comments are still a salesman's hype.
>>> >>
>>> >> Fact is, Henry does, and always has, used a lot of marginal
>>>components in
>>> >> their amps....like the ECA transformers...and the Triad
>>> >> transformers before
>>> >> them. And their current crop of amps use tank components
>that
>>>are nothing
>>> >> to right home about either.....
>>> >>
>>> >> And most annoying of all, Henry still doesn't know how to
>make
>>>sheet metal
>>> >> that fits right even after all these years.
>>> >>
>>> >> Alan, W3BV
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> At 02:12 PM 11/28/98 -0800, Radiodan W7RF wrote:
>>> >> >
>>> >> >HI Larry,
>>> >> >
>>> >> >They're not small, light, or compact, but they are THE most
>>> >> Rugged, Reliable
>>> >> >amplifiers anywhere.
>>> >> >
>>> >> >Get a HENRY. No brag........just FACT!
>>> >> >
>>> >> >
>>> >> >73, Dan Magro W7RF, (member SCDXC, SCCC)
>>> >> >Rugged, Reliable Henry HF Amps are "Instant on" for RF
>Power
>>>now!
>>> >> >DXers/Contesters/Ragchewers get your HENRY from RADIODAN
>for
>>>LESS!
>>> >> >***Subscribe to the HENRY reflector at www.qth.net
>>><http://www.qth.net>
>>> >> >***
>>> >> >www.radiodan.com <http://www.radiodan.com>
>>>RFpower@radiodan.com
>>> >> ><mailto:RFpower@radiodan.com> A trip to our web site is
>worth
>>>the click!
>>> >> >
>>> >> >
>>> >> >
>>> >> >
>>> >> >> -----Original Message-----
>>> >> >> From: owner-amps@contesting.com
>>>[mailto:owner-amps@contesting.com]On
>>> >> >> Behalf Of K4ab@aol.com
>>> >> >> Sent: Saturday, November 28, 1998 1:13 PM
>>> >> >> To: cq-contest@contesting.com
>>> >> >> Cc: amps@contesting.com
>>> >> >> Subject: [AMPS] (no subject)
>>> >> >>
>>> >> >>
>>> >> >>
>>> >> >>
>>> >> >> For the second time in as many contests, my Ameritron
>>>AL-1500
>>> >> developed a
>>> >> >> problem during the contest. Probably not a major problem,
>>>but
>>> >> certainly a
>>> >> >> nuisance.
>>> >> >>
>>> >> >> My question...what is the most durable, legal-limit,
>>>commercially
>>> >> >> available
>>> >> >> amp sold?
>>> >> >>
>>> >> >> I'm tired of having amp problems during the contests. I
>>>don't
>>> >> >> mistreat the
>>> >> >> amp, but I do run 'em hard..i.e.- CQ'ing for hours at a
>>>time.
>>> >> >>
>>> >> >> If a commercially available amp is not available, who
>>>homebrews
>>> >> >> and sells the
>>> >> >> best?
>>> >> >>
>>> >> >> Thanks!
>>> >> >>
>>> >> >> 73,
>>> >> >> Larry K4AB
>>> >> >>
>>> >> >> --
>>> >> >> FAQ on WWW: http://www.contesting.com/ampfaq.html
>>> >> >> Submissions: amps@contesting.com
>>> >> >> Administrative requests: amps-REQUEST@contesting.com
>>> >> >> Problems: owner-amps@contesting.com
>>> >> >> Search: http://www.contesting.com/km9p/search.htm
>>> >> >>
>>> >> >>
>>> >> >
>>> >> >
>>> >> >--
>>> >> >FAQ on WWW: http://www.contesting.com/ampfaq.html
>>> >> >Submissions: amps@contesting.com
>>> >> >Administrative requests: amps-REQUEST@contesting.com
>>> >> >Problems: owner-amps@contesting.com
>>> >> >Search: http://www.contesting.com/km9p/search.htm
>>> >> >
>>> >> >
>>> >> >
>>> >>
>>> >
>>> >
>>> >
>>> -- FAQ on WWW: http://www.contesting.com/ampfaq.html
>Submissions:
>>>amps@contesting.com Administrative requests:
>>>amps-REQUEST@contesting.com Problems: owner-amps@contesting.com
>>>Search: http://www.contesting.com/km9p/search.htm
>>>
>>
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>>--
>>FAQ on WWW: http://www.contesting.com/ampfaq.html
>>Submissions: amps@contesting.com
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>>
>>
>
>
___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
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--
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Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm