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Got myself this barn fresh Kellogg red bar

Started by unbeldi, March 11, 2016, 10:34:59 AM

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Matilo Telephones

Groeten,

Arwin

Check out my telephone website: http://www.matilo.eu/?lang=en

And I am on facebook too: www.facebook.com/matilosvintagetelephones

dsk

I find that Select o phone circuit interesting.
It seems to have a normal open pulse contact, is it possible to reverse that?
Does it have close to 10 pulses pr second?

May it be this circuit?

dsk

unbeldi

Quote from: Matilo Telephones on April 19, 2016, 02:38:02 PM
Good. Was it ever made in red?

Not sure. Not definitively sure.  I seem to recall someone did mention that some time some where.
But red would be a definitive favorite of mine.
Red with a clear bar: nice.  But not definitive.

rdelius

have seen green,maroon and possible blue.All were a hard bakelite type plastic and looked brown untill buffed

unbeldi

#19
Quote from: dsk on April 19, 2016, 03:02:10 PM
I find that Select o phone circuit interesting.
It seems to have a normal open pulse contact, is it possible to reverse that?
Does it have close to 10 pulses pr second?

May it be this circuit?

dsk

Here is the circuit diagram for the D1002:  http://www.classicrotaryphones.com/forum/index.php?topic=13732.msg143686#msg143686



It is drawn in the on-hook state.  Yes, the dial pulse is generated by a normally open switch.  I don't think it makes any sense to modify the type 11 dial, it also doesn't have the right off-normal contacts that one would wish for.  Standard type 10 dials aren't hard to find.

rdelius

If it has the Kellogg dial with the stamped brass frame you most likely need to replace it.If the Kellogg copy (15?)of an AE, the  impulse cam could be rotated to change to opening pulses when dialing

unbeldi

And since the ringer in these is only a low voltage device, it would have to be replaced as well for use on standard telco local loops.  The set also does not have an induction coil, so now you have to look at replacing/supplementing all it guts, in which case it is just as easy to buy a standard D1000 telephone set and keep the D1002 original and use it for special purpose with custom designed signaling circuit for your favorite, perhaps experimental, PBX system.

Matilo Telephones

Mine does seem to have a coil.

But I will keep it as is and not modify it. I will restore the chipped corners, though. And give it a clean and polish.
Groeten,

Arwin

Check out my telephone website: http://www.matilo.eu/?lang=en

And I am on facebook too: www.facebook.com/matilosvintagetelephones

Jim Stettler

Quote from: rdelius on April 19, 2016, 05:02:16 PM
have seen green,maroon and possible blue.All were a hard bakelite type plastic and looked brown untill buffed
They made brown selectophone redbars. Also (per Paul F.) white, blue, ivory, red,
pink ("given to salesmen").

They also had colored clear-bars found sets in black, green, red
white/purple_swirl.

http://www.paul-f.com/color.htm

There are 2 styles of the hang-up bar. I have seen both in red. I am not sure on the clear bars.
Personally I really like the wall modle.
JMO,
Jim S.
You live, You learn,
You die, you forget it all.

Matilo Telephones

Thanks Jim, Paul F's site even has a picture of a red clear bar. (Another one added to my wish list).
Groeten,

Arwin

Check out my telephone website: http://www.matilo.eu/?lang=en

And I am on facebook too: www.facebook.com/matilosvintagetelephones

unbeldi

#25
Quote from: Matilo Telephones on April 19, 2016, 05:35:32 PM
Mine does seem to have a coil.

But I will keep it as is and not modify it. I will restore the chipped corners, though. And give it a clean and polish.

Looking at your picture, I think the "coil" container is stamped  36A.
This indicates that this container, that normally indeed would contain the coil, instead actually only has a resistor in it.  I indicated this in my diagram, it is an 80 Ω resistance.