[GreenKeys] Dovetron Power Connector - GreenKeys Digest, Vol 116, Issue 24

Fri Sep 27 23:37:35 EDT 2013

ZCZC

I would recommend removing the filter and installing a standard cable/AC
plug.

As pointed out, those filters seem to go bad. I have made up an aluminum
plate

with a grommet that replaces the filter.

Just for information (for the adventurous types), the Dovetron Tempest units

use the same multi-secondary power transformer as found in the non-Tempest

models. That means there is a HV winding available to build an internal loop
supply.

In fact, the PC board traces are there for the diodes, capacitor and current

limiting resistor for a HV loop supply.

73 DE K0TTY

NNNN

From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Jim M.
Sent: Thursday, September 26, 2013 6:42 PM
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Dovetron Power Connector - GreenKeys Digest, Vol
116, Issue 24

I obtained a power connector for the MPC-1000T from Mouser,  $30+  It is
type MS3106A14S-7S.  It is the cable end female connector (3 pin).  Be sure
to order it with the matching cable clamp.  You might be able to obtain one
used from William Perry Company or other surplus sources.  Note that the
MPC-1000T uses an EMI/RFI filter on the power input that can trip GCFI
breakers due to the leakage current of the capacitors in the filter.  You
can either use a 110V isolation xfmr or remove the filter and wire power
directly inside.   And the other comment is correct, the Tempest version
does not have a loop supply nor does it do speed or code conversion.

Hope this helps

73 Jim N4BE

  _____  

From: "greenkeys-request at mailman.qth.net"
<greenkeys-request at mailman.qth.net>
To: greenkeys at mailman.qth.net 
Sent: Saturday, September 21, 2013 12:00 PM
Subject: GreenKeys Digest, Vol 116, Issue 24

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Today's Topics:

  1. Re: Road freight question - Old firehouse teletype
      (COURYHOUSE at aol.com)
  2. Re: Road freight question - Old firehouse teletype
      (Mark Richardson)
  3. Dovetron power (Larry)
  4. Re: Dovetron power (COURYHOUSE at aol.com)
  5. Re: GRC-142 shelter system for sale -central CA (Richard Johnson)
  6. Delivery Dates (George B. Hutchison)
  7. need this HAL monitor and keybord! Have the Recv part    (but
      would cosider spare (COURYHOUSE at aol.com)

----------------------------------------------------------------------

Message: 1
Date: Fri, 20 Sep 2013 12:12:45 -0400 (EDT)
From: COURYHOUSE at aol.com
To: mmacleod at iinet.net.au, greenkeys at mailman.qth.net
Cc: gil at baudot.net
Subject: Re: [GreenKeys] Road freight question - Old firehouse
    teletype
Message-ID: <77865.58f8b9e8.3f6dcdfd at aol.com>
Content-Type: text/plain; charset="us-ascii"

or  just  covert it  to a governed  motor! Ed#

In a message dated 9/20/2013 6:18:17 A.M. Mountain Standard Time,  
mmacleod at iinet.net.au writes:

>
> Isn't it a 110V motor?  You'll need to step down  your 220.
>

Yes, I will definitely need to step down the  voltage.  That's not too 
difficult to do.  The bigger problem is  that our mains power here is 50Hz.
If 
the tape printer has a synchronous  motor, I will either need a 50Hz gear 
set (presumably unobtainable!), or  reduce the baud rate to 5/6 of 45.4
baud.  
The other option is to power  it through an inverter, to achieve  110v/60hz.

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Message: 2
Date: Fri, 20 Sep 2013 10:24:07 -0600
From: "Mark Richardson" <W7HPW at airwired.net>
To: <greenkeys at mailman.qth.net>
Subject: Re: [GreenKeys] Road freight question - Old firehouse
    teletype
Message-ID: <[email protected]>
Content-Type: text/plain; charset="us-ascii"

Or run it on a variable frequency motor drive

Mark    

W7HPW

From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of COURYHOUSE at aol.com
Sent: Friday, September 20, 2013 10:13 AM
To: mmacleod at iinet.net.au; greenkeys at mailman.qth.net
Cc: gil at baudot.net
Subject: Re: [GreenKeys] Road freight question - Old firehouse teletype

or  just  covert it  to a governed  motor! Ed#

In a message dated 9/20/2013 6:18:17 A.M. Mountain Standard Time,
mmacleod at iinet.net.au writes:

>
> Isn't it a 110V motor?  You'll need to step down your 220.
>

Yes, I will definitely need to step down the voltage.  That's not too
difficult to do.  The bigger problem is that our mains power here is 50Hz.
If the tape printer has a synchronous motor, I will either need a 50Hz gear
set (presumably unobtainable!), or reduce the baud rate to 5/6 of 45.4 baud.
The other option is to power it through an inverter, to achieve 110v/60hz.

______________________________________________________________
GreenKeys mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GreenKeys at mailman.qth.net

2002-to-present greenkeys archive:
http://mailman.qth.net/pipermail/greenkeys/
1998-to-2001 greenkeys archive:
http://mailman.qth.net/archive/greenkeys/greenkeys.html
Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
http://comcents.com/tty/greenkeyssearch.html

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Please help support this email list: http://www.qsl.net/donate.html

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Message: 3
Date: Fri, 20 Sep 2013 12:06:13 -0700
From: Larry <Telegrapher at Q.com>
To: Greenkeys at mailman.qth.net
Subject: [GreenKeys] Dovetron power
Message-ID: <523C9CA5.8050102 at Q.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I am looking for a power connector for my Dovetron.  It has the military 
3 pin connector on the back.  No idea what the number of it is.  Anyone 
have the AN or military id for it?

Larry
W0OGH

------------------------------

Message: 4
Date: Fri, 20 Sep 2013 16:22:29 -0400 (EDT)
From: COURYHOUSE at aol.com
To: Telegrapher at Q.com, Greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Dovetron power
Message-ID: <411f4.722a28fe.3f6e0885 at aol.com>
Content-Type: text/plain; charset="us-ascii"

Larry - Send  me a picture of it and I will keep an  eye  out  as I rummage 
here.

Mine  were the  normal power connectors .

is  yours the tempest one  that needs the external loop  supply also!?

Ed#

In a message dated 9/20/2013 12:43:18 P.M. Mountain Standard Time,  
Telegrapher at Q.com writes:

I am  looking for a power connector for my Dovetron.  It has the military 
3  pin connector on the back.  No idea what the number of it is.  Anyone 
have the AN or military id for  it?

Larry
W0OGH

______________________________________________________________
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http://mailman.qth.net/pipermail/greenkeys/
1998-to-2001 greenkeys archive:  
http://mailman.qth.net/archive/greenkeys/greenkeys.html
Randy Guttery's  2001-to-2009 GreenKeys Search Tool:  
http://comcents.com/tty/greenkeyssearch.html

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Message: 5
Date: Fri, 20 Sep 2013 14:04:25 -0700
From: Richard Johnson <killroy321 at hotmail.com>
To: "greenkeys at mailman.qth.net" <greenkeys at mailman.qth.net>
Subject: Re: [GreenKeys] GRC-142 shelter system for sale -central CA
Message-ID: <COL127-W393697F2E1E239B28AFE7A99220 at phx.gbl>
Content-Type: text/plain; charset="windows-1252"

My friend is selling his Ratt rig shelter.  S-250 GRC-142.  

It has the GRC-106 system mounted but does not have the TTYs or modem.

It has a UGC74 not mounted.

Shelter is in an M105a2 duce and half trailer. 

$2,400 

Please contact him direct at email below.

sgtorpe at netptc.net

"Those who enjoy freedom must endeavor to preserve it."

"No free man shall ever be debarred the use of arms?"
Thomas Jefferson

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Message: 6
Date: Fri, 20 Sep 2013 15:16:50 -0700
From: "George B. Hutchison" <w7tty at centurylink.net>
To: <greenkeys at mailman.qth.net>
Subject: [GreenKeys] Delivery Dates
Message-ID: <F4E33B882CAF4B33B1A6C73FE1CE766C at MAINCONSOLE>
Content-Type: text/plain;    charset="iso-8859-1"

GreenKeyers - - -

I neglected to indicate the delivery dates of the various 
shipments.  My Bad!!

The lates should be this coming Wednesday, with most before that.

Your tracking numbers should be of some help.

Any problems please e-mail or call me on my cell.  I will have all 
of the Fire Sale Documentation with me.

Cell is 360-775-1128.

I should be leaving for Colorado within the hour and the cell 
service should be pretty good all the way. I'll be in Delta then 
Arvada.

Thanks for the tremendous response.

George - W7TTY

------------------------------

Message: 7
Date: Fri, 20 Sep 2013 23:52:29 -0400 (EDT)
From: COURYHOUSE at aol.com
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] need this HAL monitor and keybord! Have the Recv
    part    (but would cosider spare
Message-ID: <7dca9.5063f1d1.3f6e71fd at aol.com>
Content-Type: text/plain; charset="us-ascii"

ok  building  display  

need this HAL monitor and keyboard!  Have the Recv  part ((((but  would 
consider a spare on any  of this as  will be  oerational...)))))

ed sharpe archivist for smecc

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