OK, thanks Milt.  That description fits pretty much what I have here.  This
makes me wonder why it was installed into a GE VHF-Lo Band station cabinet.
(I know it was VHF Lo Band, since it used to be an old county PD transmitter
on 39.620.)

 

Oh well, at least now I know what the "potential market" might be for this
item.  It's not doing me any good, so I think I'll try to turn it into some
profit to use to build my 900 MHz repeater station.  <wink>  Again, if
anyone knows of someone who might be interested in this item, please point
them my way.

 

Many thanks again!

Mark - N9WYS

 

  _____  

From: [email protected] On Behalf Of Milt



That would be a telephone dedicated line conditioner, designed to compensate
a poorly built telco line.  Normally not something seen in the two-way
market.  I remember a small FM radio station I worked for a long time ago
had a similar device which the telephone company installed after we could
not properly meet the proof of performance.  The unit was used to flatten
out the response of the telco line that fed the signal from the studio to
the transmitter.  The unit should be able to boost or cut each if the audio
bands so that the overall response of the line can be tailored to customer
specs.  

 

Milt

N3LTQ

 

----- Original Message ----- 

From: n9wys <mailto:[EMAIL PROTECTED]>  

To: 'Mike Morris <mailto:[EMAIL PROTECTED]>  WA6ILQ' ;
[email protected] 

Sent: Friday, August 17, 2007 10:21 PM

Subject: RE: [Repeater-Builder] Line conditioner

 

I'm thinking not, Mike. This thing looks like some sort of AUDIO conditioner
- with thumbwheel dials for frequency ranges, starting at 600Hz through 3200
Hz, with 200 Hz steps.  It is fed with a two-wire line, similar to phone
circuit wiring.  I can send photos if you need to see more about this thing.
And it's certainly NOT heavy!  ;-)

 

Mark - N9WYS

 


  _____  


From: [email protected] On Behalf Of Mike Morris WA6ILQ

At 12:57 PM 08/17/07, you wrote:

I have a Sanders DLC-100 Line Conditioner, taken from an old GE station
cabinet.  I'm not sure what this item is for, or whether it's worth anything
now.  (And a Google for "line conditioner" and "Sanders DLC-100" provided no
added information.)  
 
If someone can provide some insight, I'd appreciate it!
 
Thanks!
Mark - N9WYS


Its a saturable core power line transformer - designed to output a steady AC

voltage with the input voltage varying. Try googling "constant voltage
transformer" 
or "constant voltage AC transformer".  Sola is one of the bigger names in
that 
product.

They are heavy, inefficient and run warm to hot.  But they are simple and do

the job.

My dad used to have his photo studio in a 1935 building with three
elevators, 
and if two of them started at the same time the AC line voltage would dip
quite 
a bit for 2 to 3 seconds due to the old undersized wiring.  

One day he and I were at C&H Surplus in Pasadena and I stumbled (literally) 
across a 1500w Sola CV transformer.  I recognized it for what it was, and we

bought it for $5.  A few hours later it had a outlet box with a duplex
outlet mounted 
on the output side, and a #12ga power cord on the input. 

My dad used it on the feed for the contact printer and the enlarger and his 
exposure problems went away (i.e. the couple of seconds of low voltage would

result in an underexposed print or negative.

I have a line voltage conditioner here if anybody wants it.
Caution, it's heavy.

Mike WA6ILQ



 

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