Author Topic: Intercoms--Suggestions Appreciated!  (Read 8731 times)

Offline bingster

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Re: Intercoms--Suggestions Appreciated!
« Reply #15 on: February 21, 2011, 01:15:15 PM »
Now, to begin, where does one find the suggested station cables for the Connecticut intercom phones? 

They came with plain solid core copper wire.  Two pieces (or three, depending on where you kept the batteries) would be run from one set to the other.  18 or 20 gauge would be appropriate with a normal setup.

I have the setup instructions if you need them.
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Offline stopthemachine

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Re: Intercoms--Suggestions Appreciated!
« Reply #16 on: February 21, 2011, 05:08:20 PM »
Thank you, Bingster,

Yes, I would greatly appreciate them.  They're really cool, those intercoms.  Besides the intercoms and "toaster" phones (which I just recently acquired after many years), it doesn't seem like they made too much in terms of telephony.

Slightly off topic, but what kind of dials were the "toaster" sets usually fitted with?  Mine seems like an AE dial, but I'm not quite sure...it ticks when the dial is wound up to the finger stop.

Offline bingster

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Re: Intercoms--Suggestions Appreciated!
« Reply #17 on: February 25, 2011, 10:58:23 PM »
Here are the pages from the instruction booklet.  I don't have a scanner, but I photographed them a while back for another member who had a set of these.  There are four pages, and a couple pages are photographed in two sections.  Click the thumbnails for full-size images:

Cover


Page 2


Page 3


Page 4
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Offline stopthemachine

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Re: Intercoms--Suggestions Appreciated!
« Reply #18 on: February 25, 2011, 11:11:01 PM »
Awesome!  Thanks, Bingster.

Instead of the dry cells, I take it i use 9-volt batteries then?

Offline bingster

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Re: Intercoms--Suggestions Appreciated!
« Reply #19 on: February 26, 2011, 06:02:17 AM »
#6 dry cells were 1.5 volts, so in a standard installation, you'd have a total of six volts (1.5V X  4 batteries) powering the phones.  I imagine a 6 volt lantern battery would work (you'd have to use the three-wire installation method with the battery at one end only), but I think that I'd avoid using C or D cells.  Even though C and D are the proper 1.5 volts, they probably wouldn't last very long. 
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Offline Jim S.

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Re: Intercoms--Suggestions Appreciated!
« Reply #20 on: February 26, 2011, 09:11:36 PM »
Awesome!  Thanks, Bingster.

Instead of the dry cells, I take it i use 9-volt batteries then?


#6 dry cells are 1.5 volt. I would get a Battery holder from radio shack and use 2 "D" cells.
JIm
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Offline stopthemachine

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Re: Intercoms--Suggestions Appreciated!
« Reply #21 on: February 26, 2011, 09:16:29 PM »
Jim, would the "D" cell batteries last a while?  I guess I don't want to keep buying batteries every day.  Haha.  Thanks.

Offline Phonesrfun

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Re: Intercoms--Suggestions Appreciated!
« Reply #22 on: February 26, 2011, 09:22:21 PM »
Jim, would the "D" cell batteries last a while?  I guess I don't want to keep buying batteries every day.  Haha.  Thanks.

It is my experience that a couple of "D" cells in a phone will last many months, depending on the use.  When I was a teen-ager, my neighbor and I had a couple of 500's and a line between our houses, and a 6-volt lantern battery lasted us a couple years.  The normal telephone and intercom talk circuit only draws about 35mA, which is 35 thousandths of an amp, and that is only while the phones are off hook.  When on-hook, they should draw zero current.
-Bill G

Offline stopthemachine

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Re: Intercoms--Suggestions Appreciated!
« Reply #23 on: February 26, 2011, 10:13:06 PM »
Great advice, thanks, Bill and Jim. 

Bill, Should I do as Jim suggested and just put them in a battery holder from Radio Shack then?  Seems to be the easiest thing.

Thank you all.  Your advice is always appreciated.

Offline Phonesrfun

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Re: Intercoms--Suggestions Appreciated!
« Reply #24 on: February 27, 2011, 12:26:49 AM »
Bill, Should I do as Jim suggested and just put them in a battery holder from Radio Shack then?  Seems to be the easiest thing.


That's what I do, and it works great.
-Bill G

Offline Jim S.

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Re: Intercoms--Suggestions Appreciated!
« Reply #25 on: February 27, 2011, 12:35:11 AM »
Jim, would the "D" cell batteries last a while?  I guess I don't want to keep buying batteries every day.  Haha.  Thanks.

I think they would, current only flows when they are in use. I don't think you will use them enough for battery life to be a concern.
JMO,
Jim

I just read Bill's post. Great minds think alike.
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Offline GG

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Re: Intercoms--Suggestions Appreciated!
« Reply #26 on: February 28, 2011, 08:11:17 AM »


I'd suggest using rechargeable batteries and having a recharger.  Costs more to begin with, but less in the long run, and then you won't get stuck if the batteries run down and you don't have a spare set of batteries on hand: just stick 'em in the charger and save a trip to the store. 


Offline bingster

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Re: Intercoms--Suggestions Appreciated!
« Reply #27 on: February 28, 2011, 03:51:52 PM »
That's a good idea.  I also wonder if it's possible to use a 6 volt wall charger.  Anybody know if that would work?
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Offline Phonesrfun

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Re: Intercoms--Suggestions Appreciated!
« Reply #28 on: February 28, 2011, 04:26:29 PM »
Yes, you can, but...

The ordinary wall wart charger probably does not have sufficient filtering to get rid of the hum left over from rectifying the AC into DC. 

Some switching power supplies have better filtering.  For more information on building such a battery eliminator, see the pdf booklet in the section describing the power supply in this thread:

http://www.classicrotaryphones.com/forum/index.php?topic=4361.0

-Bill G

Offline AE_Collector

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Re: Intercoms--Suggestions Appreciated!
« Reply #29 on: March 01, 2011, 12:26:59 AM »
Maybe DavePEI will see this and comment. Didn't someone determine that old cell phone chargers have very well filtered DC battery? I think Dave used some to power his magneto phones. Old cell phone chargers are usually easy to locate.

Terry