Classic Rotary Phones Forum

Telephone Switching => Intercom & Interphone Systems => Topic started by: Mark S on August 29, 2019, 09:54:23 PM

Title: Mix and match?
Post by: Mark S on August 29, 2019, 09:54:23 PM
Off the wall Question:  I'm in the process of setting up a Panasonic 616 PBX with a few vintage rotary phones exclusively for intercom use.  A few EBay posts have antique intercom phones (Samson, WE, SC) with cool watch case receivers I wouldn't mind adding to the circuit.  Does anyone have any experience integrating these? Is that possible?  Attached is a photo example of what I'm seeing.
Thanks!
Mark
Title: Re: Mix and match?
Post by: RB on August 30, 2019, 10:35:53 AM
Hi Mark.
Disclaimer... I don't know those phones.
If they are intercoms, they will prob need a voice coil and a CB hook switch to make them a complete phone.
Then they shud hook right up.
They will have no signal capability, but may ring from the 616.
Can you post a pic or two of the insides?
That will help.
Title: Re: Mix and match?
Post by: Mark S on August 30, 2019, 01:01:41 PM
Thanks.  I haven't purchased any yet, so the pix are limited to what they show on EBay.  The one I've attached as an example is a Stromberg Carlson intercom phone.  The other is a Samson Jr but no inside pictures.  I'm pretty sure I could get them to buzz but I'm wondering if I could utilize the call button to be functional in this set up.
Title: Re: Mix and match?
Post by: HarrySmith on August 30, 2019, 02:06:02 PM
If they were intercoms and you intend to use them as intercoms they should be fine. Once you connect them properly and add a power supply you should be good to go.
Title: Re: Mix and match?
Post by: RB on August 30, 2019, 04:03:23 PM
I don't know about runnin them through a 616 tho???
don't think that setup will fly.
Title: Re: Mix and match?
Post by: HarrySmith on August 30, 2019, 04:26:34 PM
Yes, you may be right, I missed that. I do believe they can be connected together and work that way.
Title: Re: Mix and match?
Post by: Jim Stettler on August 30, 2019, 06:40:54 PM
Ralph Meyers book has intercom circuits. Some use a 1:1 audio isolation transformer to keep them isolated. This is the type of circuit that MAY work for your application.
I think their is a link for a free download of Ralph's book on this forum. If not the book may be on this site or in the TCI library.
In the past I posted a link to  Ralph's Dreyfuss article. I asked permission and got it, as well as a free download for his book. I couldn't easily find it the link , but it should be on the forum.
If anyone  finds the  free link to Ralphs book, please post it to this thread.
Thanks,
Jim
Title: Re: Mix and match?
Post by: HarrySmith on August 30, 2019, 07:16:24 PM
Here is a link to download the book from the TCI website:

https://www.telephonecollectors.org/OldTimeTelephones.htm
Title: Re: Mix and match?
Post by: Mark S on August 31, 2019, 09:03:12 PM
Thanks for your help.  I figured it was a long shot question to see if anyone matched the two types in one system.  I have an older version of the book and reviewed the circuits.  If I had an intercom phone already I'd try it, but I'll walk away from bidding on one to integrate at this point.
Mark