loran questions

In article <dot5s0$jv3$1@domitilla.aioe.org>,
"Lynn Coffelt" <coffelt2.RemoveThis@comcast.net> wrote:

> Last year we put a Wood-Freeman mechanical, chain drive monster on a
> commercial fishing vessel. Of course we used Comnav electronics and motor
> driver. (new mercury contactors are rare and expensive!)
>
> Lynn

Nothing like an old Wood Freeman Brass Gearbox Chaindrive....
I suspect you could build a PowerMosFET driver for one of these
without too much trouble. I wonder what Bruce @ Wood-Freeman is
using instead of Mercury Switches these days? I have seen a lot
of different AutoPilot Boxes driving Wood-Freeman Motordrives
over the years. Worked on a Model 12 last summer, for a Troller...
now that is OLD......


Bruce in alaska
--
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On Wed, 28 Dec 2005 18:33:39 GMT, Bruce in Alaska <bruceg DeleteThis @btpost.net>
wrote:

>Nothing like an old Wood Freeman Brass Gearbox Chaindrive....
>I suspect you could build a PowerMosFET driver for one of these
>without too much trouble. I wonder what Bruce @ Wood-Freeman is
>using instead of Mercury Switches these days? I have seen a lot
>of different AutoPilot Boxes driving Wood-Freeman Motordrives
>over the years. Worked on a Model 12 last summer, for a Troller...
>now that is OLD......

=================================

Know anyone who could use one circa 1981 or so? I have both the motor
drive and the control box although it is likely that some part of it
is not working since it was already replaced at the time I bought the
boat. I deinstalled the Wood-Freeman components last year to make
more room under the flybridge console. It is a 12 volt unit from a
Grand Banks 49 Classic trawler.
 >> Stay informed about: loran questions 

> > Last year we put a Wood-Freeman mechanical, chain drive monster on a
> > commercial fishing vessel. Of course we used Comnav electronics and
motor
> > driver. (new mercury contactors are rare and expensive!)
> >
> > Lynn
>
> Nothing like an old Wood Freeman Brass Gearbox Chaindrive....
> I suspect you could build a PowerMosFET driver for one of these
> without too much trouble. I wonder what Bruce @ Wood-Freeman is
> using instead of Mercury Switches these days? I have seen a lot
> of different AutoPilot Boxes driving Wood-Freeman Motordrives
> over the years. Worked on a Model 12 last summer, for a Troller...
> now that is OLD......

Haven't talked to Bruce since I sold shop 10 years ago. I did talk to Doc's
son about the four-wire motor color code I think last year. I see in their
website they have a "solid-state" driver that replaces tilting tables
"sensitive relays" and everything! Also we installed a few "solid-state
switchers" maybe 15 years ago, for the "500" when using two pump sets in
tandem. (mostly on Kodiak seiners that were lengthened to "limit" seiners) I
still have a warm and fuzzy feeling for the cast brass, manual clutch and
stainless steel chains "Iron Mike".

I gathered up two SEA-106's (I think that's the model), one with the
Eproms and one with the thumb wheels. Drew diagrams and accumulated parts to
convert the EPROM model (with freq display) to a knob tuned, all frequency
Ham rig. Was discouraged and quit when my talents couldn't figure how to
tune it in smaller than 10khz increments with SEA's decoding system for the
VCO........sigh.

Lynn, "Has-Been Guru"
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"Lynn Coffelt" <coffelt2 RemoveThis @comcast.net> wrote in message
news:dot5s0$jv3$1@domitilla.aioe.org...
> With
>> >> the right incentives I might also throw in a Wood Freeman auto pilot
>> >> assembly (chain drive). It is a mechanical marvel and only weighs 50
>> >> pounds or so.
>> >>
>> >
>> >is the drivemotor 12Vdc or 32Vdc?
>>
>> ================================
>>
>> 12 volts
>>
> Last year we put a Wood-Freeman mechanical, chain drive monster on a
> commercial fishing vessel. Of course we used Comnav electronics and motor
> driver. (new mercury contactors are rare and expensive!)
>
> Lynn
>
>
I believe there still is an upgrade for the mercury contactors to solid
state plug ins available somewhere. I recall we sent some out for upgrade
about 3 years ago. The boss is on vacation this week (why I am back in the
shop after retiring). I am sure he could ID the source if anyone needs them.
73
Doug K7ABX
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"Larry"----- Original Message -----
From: "Larry" <noone.TakeThisOut@home.com>
Newsgroups: rec.boats.electronics
Sent: Saturday, December 24, 2005 4:21 PM
Subject: Re: loran questions


<<SNIP>>..
>
> When I need hard-to-find parts to fix old organs, especially ICs, I know
> who to ask before internet....(c;
>
Hey Larry,
Thought you might be interested to know that the owner, long since retired,
of my employer, is Rodgers Jenkins, the founder of Rodgers Organ, a
Tektronixs spin off. See www.rodgersmarine.com for a company histroy.
73
Doug K7ABX CTMCS USN (Retired)
<noone.TakeThisOut@home.com> wrote in message
news:Xns9736C4D82C105noonehomecom@208.49.80.253...
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"Doug" <dougm.DeleteThis@rodgersmarine.com> wrote in
news:BTXsf.3770$nu6.1765@newsread1.news.pas.earthlink.net:

> Thought you might be interested to know that the owner, long since
> retired, of my employer, is Rodgers Jenkins, the founder of Rodgers
> Organ, a Tektronixs spin off. See www.rodgersmarine.com for a company
> histroy. 73
> Doug K7ABX CTMCS USN (Retired)
>

That is cool, Doug. There are a few Rodgers around Charleston, left by a
little dealer that started up with way too much stock, way too little
capital and way too few buyers. He left a few of them and I think he's
still coming to service them, but not sure any more. I rarely get to fix
one. Hell, any more I rarely get to fix ANY! The business has gone all
to hell. I've spent this week rebuilding a computer network for a real
estate office, cleaning the internet's excrement off their computers and
making it so copy-protected, damnable Windows XP can be force-fed, even
when it doesn't want to, so they can go about their business, unimpeded
by the billionaire from Redmond....(c;

Rodgers made nice organs, but the prices put them in the ALLEN class
without the lifetime Allen support, which also did in several more
bigshot organ companies. Allen's still got parts for their 1962
model...in stock for shipment, immediately. UNfortunately, they won't
ship them to ME to make the customers happy, trying to force them to get
service from the overloaded dealer's boy at $25 more an hour....

Larry W4CSC ET1...1964-1969...
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"Lynn Coffelt" <coffelt2.TakeThisOut@comcast.net> wrote in message
news:donr4h$1u6$1@domitilla.aioe.org...
>
> "Larry" <noone.TakeThisOut@home.com> wrote in message
> news:Xns9737C3021731Enoonehomecom@208.49.80.253...
>> Bruce in Alaska <bruceg.TakeThisOut@btpost.net> wrote in news:bruceg-
>> E16AB3.10213025122005.TakeThisOut@netnews.worldnet.att.net:
>>
>> > well, if your rich and famous.....
>> >
>> >
>>
>> I am rich and famous. I use Yaesu ham radios...(c;
>>
>> They come with LSB and 10 Hz steps, not 100 or 1Khz.
>>
> Heck, that ain't nothing! My RME4350 goes 20 times further than
> that....... just during warm up.
> Lynn W7LTQ
>
>
Ever thought of trying some zener diodes or solid state regulators in it to
see if stabalizes? Do is have VR type gaseous regulator tubes? It been a few
years since I peeked inside an RME.
Doug K7ABX
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"Doug" <dougm.DeleteThis@rodgersmarine.com> wrote in message
news:xZXsf.3774$nu6.1730@newsread1.news.pas.earthlink.net...
>
> "Lynn Coffelt" <coffelt2.DeleteThis@comcast.net> wrote in message
> news:donr4h$1u6$1@domitilla.aioe.org...
> >
> > "Larry" <noone.DeleteThis@home.com> wrote in message
> > news:Xns9737C3021731Enoonehomecom@208.49.80.253...
> >> Bruce in Alaska <bruceg.DeleteThis@btpost.net> wrote in news:bruceg-
> >> E16AB3.10213025122005.DeleteThis@netnews.worldnet.att.net:
> >>
> >> > well, if your rich and famous.....
> >> >
> >> >
> >>
> >> I am rich and famous. I use Yaesu ham radios...(c;
> >>
> >> They come with LSB and 10 Hz steps, not 100 or 1Khz.
> >>
> > Heck, that ain't nothing! My RME4350 goes 20 times further than
> > that....... just during warm up.
> > Lynn W7LTQ
> >
> >
> Ever thought of trying some zener diodes or solid state regulators in it
to
> see if stabalizes? Do is have VR type gaseous regulator tubes? It been a
few
> years since I peeked inside an RME.
> Doug K7ABX
>
Well, it does already have VR tube plate regulation for the
oscillators, but the irritating drift was caused by heater voltage changes.
A less than brilliant attempt was made to use back-to-back zener diodes
regulating the various oscillator AC heater voltages (using a separate
higher voltage filament transformer too), but that turned into a real power
hog, and did not deal with the varying duty cycle of a clipped AC voltage.
Biggie, of course, was the awful RF noise generated by this brilliant idea.
Completely saturated the front end (and probably the mixers and IF too)
The RME has been resting under a dust cloth, on a storage shelf for about 40
years now (in three countries and four States).
Old Chief Lynn, W7LTQ (et al)
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"Leanne" <leanne RemoveThis @islc.net> wrote in message
news:dopk0i0jt2@enews2.newsguy.com...
>
> "Lynn Coffelt" <coffelt2 RemoveThis @comcast.net> wrote in message
> news:dopdc0$k61$1@domitilla.aioe.org...
>>
>> "Larry" <noone RemoveThis @home.com> wrote in message
>> news:Xns9738474583599noonehomecom@208.49.80.253...
>> > "Lynn Coffelt" <coffelt2 RemoveThis @comcast.net> wrote in news:donr4h$1u6$1
>> > @domitilla.aioe.org:
>> >
>> > > just during warm up.
>> > >
>> >
>> > Warmup? 4-1000's don't warmup...(c;
>> >
>> > Oh, you mean until the graphite plates are cherry red on the pair of
>> > them...(c;
>>
>> Well, not exactly, but we did run cherry red graphites for a time on the
>> homebrew push-pull 211's (aka VT-127?). Shame the plate xformer smoked
>> during ARRL RCC certificate attempts.
>
> Nothing like the warm glow of a pair of 3-500's key down on rtty, on a
> cold
> winter's night. Almost as warming as a fireplace.
>
> Leanne
> W1WXS
>
>
And the solder running out of the 3-500 tube pins. I restored a large box of
pulled 3-500Z's back in 1970 when I arrived on Adak Island. Some of the MARS
ops at KL7AIZ were not real good about tuning the Henry 2K3 with Johnson
Viking matchbox into the 80 meter rhombic. The tubes got so hot the solder
ran out of the pins. Once I discovered the fix, there was talk of awarding
me some kind of medal!
73
Doug K7ABX
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"Doug" <dougm.DeleteThis@rodgersmarine.com> wrote in news:j6Ysf.3776$nu6.2234
@newsread1.news.pas.earthlink.net:

> The tubes got so hot the solder
> ran out of the pins.

PRECISELY why I confiscated all the keys to Radio 2, USS Everglades (AD-
24), where the TBK/TBL Museum was located. USN Radiomen weren't trained in
1960s how to tune up a real transmitter. I got tired of being dragged out
of bed at 2AM just for information. Give me the freq list for tonight and
I'll have 'em ready, on time, without having to fix them every time a
Radioman got within 5' of them....(sigh).

Note to the Deck Force....Don't take the ground wire off the turnbuckles on
rigging going aloft unless you ask me nicely to secure the TBKs first to
save those burned fingers...(c;
 >> Stay informed about: loran questions 

In article <dov3uk$kqc$1@domitilla.aioe.org>,
"Lynn Coffelt" <coffelt2 RemoveThis @comcast.net> wrote:

> I gathered up two SEA-106's (I think that's the model), one with the
> Eproms and one with the thumb wheels. Drew diagrams and accumulated parts to
> convert the EPROM model (with freq display) to a knob tuned, all frequency
> Ham rig. Was discouraged and quit when my talents couldn't figure how to
> tune it in smaller than 10khz increments with SEA's decoding system for the
> VCO........sigh.
>
> Lynn, "Has-Been Guru"

As I remember it the 106 didn't have a divider chain that went down past
10Khz, because 100Khz was the minimum channel spacing at the time for
commercial MF/HF radios. I think Bill Forgey wanted to go to 100Hz,
but got overruled by the Marketing Guys, as it would cost to much to
impliment that into the radio. Sure made the VCO Loops, a lot easier to
design. I remember how interested those guys were to look at my Kenwood
TS-430, that I got right after they came on the market. Bill, Mark,
and Pete Hopp, did a complete Type Acceptance proceedure on it, in the
Design Lab just to see how good the design was. I saw the data, and it
would have passed on all the technical stuff, just wouldn't meet the
Operator Control Requirements. They were very impressed, and the result
was the SEA-322, which has one of the best commercial Marine Specs
around.

Bruce in alaska
--
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Larry wrote:
> "Doug" <dougm.DeleteThis@rodgersmarine.com> wrote in
> news:BTXsf.3770$nu6.1765@newsread1.news.pas.earthlink.net:
>
>
>>Thought you might be interested to know that the owner, long since
>>retired, of my employer, is Rodgers Jenkins, the founder of Rodgers
>>Organ, a Tektronixs spin off. See www.rodgersmarine.com for a company
>>histroy. 73
>>Doug K7ABX CTMCS USN (Retired)
>>
>
>
> That is cool, Doug. There are a few Rodgers around Charleston, left by a
> little dealer that started up with way too much stock, way too little
> capital and way too few buyers. He left a few of them and I think he's
> still coming to service them, but not sure any more. I rarely get to fix
> one. Hell, any more I rarely get to fix ANY! The business has gone all
> to hell. I've spent this week rebuilding a computer network for a real
> estate office, cleaning the internet's excrement off their computers and
> making it so copy-protected, damnable Windows XP can be force-fed, even
> when it doesn't want to, so they can go about their business, unimpeded
> by the billionaire from Redmond....(c;
>
> Rodgers made nice organs, but the prices put them in the ALLEN class
> without the lifetime Allen support, which also did in several more
> bigshot organ companies. Allen's still got parts for their 1962
> model...in stock for shipment, immediately. UNfortunately, they won't
> ship them to ME to make the customers happy, trying to force them to get
> service from the overloaded dealer's boy at $25 more an hour....
>
> Larry W4CSC ET1...1964-1969...
But you haven't really lived until you sit in the balcony of a 4000 seat
theatre listening to a beautiful 3/15 Wurlitzer that you just spent 3
years restoring.
krj
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krj <joyner_k DeleteThis @bellsouth.net> wrote in news:MA2tf.18280$dZ1.10176
@bignews2.bellsouth.net:

> But you haven't really lived until you sit in the balcony of a 4000
seat
> theatre listening to a beautiful 3/15 Wurlitzer that you just spent 3
> years restoring.
> krj
>

Hugo blew the roof off First Scots Presbyterian Church in 1989. Alan
Ontko was tasked at replacing the old organ with one of his, from his
shop in Charleston. This console:
http://pipedreams.publicradio.org/gallery/southeast/south_carolina/charle
ston_firstscottsontko.shtml
(sorry for the wordwrap)
came from England, as did the master control computer back in the 3-
story-high pipe chamber. Some of the bass flutes are so big they were
cut to fit the building, partially laying on their sides on the floor,
then going up the wall.

A mixture of old world pipe organ and modern computers, the console talks
to the computer that selects which pipe to play with a fibre optic cable
that must be less then 5 Km long. It is. The organ is in a loft on the
other end of the sanctuary. I've been INSIDE the organ while it was
playing itself from its midi interface. If the organist is sick or stuck
in traffic...no problemo. Plug 'n Play!...(c;

The sound is amazing. At the dedication, a professional organist from
some of the finest schools in the world played it for the concert. They
have a CD of the event.

The stop buttons you simply touch, they light up. The thing looks like
the master control of the Starship Enterprise when it's operating. Too
bad noone turned it on when they took this picture. It's quite a light
show.

If you enjoy organ music, you must wait until they finish, again,
restoring the Atlantic City Organ:
http://www.acchos.org/
I'm a member. It's the largest Wurlitzer every built. It is so large
the SIX blowers must be put online one-at-a-time to keep from overloading
the auditorium's electric power supply..(c; Look through the website at
the HUGE pipes, a 64' rank, the largest pipes on the planet.

Me, I fix Hammonds....vintage Hammonds. I'm in the South, you know,
where church music isn't classical, it's gospel. Drop by and I'll take
you way out on Wadmalaw Island to an AME church where the people speak
Gullah, not English, the organ is a B-3 with twin Leslies all tubes, and
show you what REAL Christians do on Sunday morning....It's not about
money or power.
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