Author Topic: Got my 1st SC stick today. need help gettin into it  (Read 1654 times)

Offline RB

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #15 on: February 14, 2021, 09:38:41 AM »
Jack.
Here are a couple more pics of the dial.
I am worried, tho, that it may not have split ends, and won't indeed be a 51???
hears hoping!

Offline Jack Ryan

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #16 on: February 14, 2021, 05:46:19 PM »
Jack.
Here are a couple more pics of the dial.
I am worried, tho, that it may not have split ends, and won't indeed be a 51???
hears hoping!

It is a Type 51 (no split ends) not a Type 51A (split ends). Otherwise they are identical.

Jack

Offline Jim Stettler

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #17 on: February 14, 2021, 06:54:53 PM »
It is a Type 51 (no split ends) not a Type 51A (split ends). Otherwise they are identical.

Jack


I understand the difference.
I don't understand the reason for the difference.
My best guess is for a redundant path for quality purposes ?
Comments?
You live, You learn,
You die, you forget it all.

Offline Jack Ryan

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #18 on: February 14, 2021, 08:13:57 PM »
I understand the difference.
I don't understand the reason for the difference.
My best guess is for a redundant path for quality purposes ?
Comments?

It halves the probability of a dirty contact fault. In addition to the bifurcated contacts, the contacts are designed to "wipe" each other as they make and break contact. This helps to clean the contacts. Hook switch contacts followed suit.

Also, Bell used bifurcated contacts on the 500 dial so AE had to remove that as a selling point for Bell.

Regards
Jack

Edit:

It halves the probability of a dirty contact fault.

Of course that isn't correct. If the probability of a single contact failure is Sp, then the probability of the pair failing, Pp is:

Pp = Ps and Ps = Ps x Ps = Ps^2

So the probability of a contact fault is much less when bifurcated contacts are used.

Sorry about that.

Jack


« Last Edit: February 14, 2021, 08:22:59 PM by Jack Ryan »

Offline Jim Stettler

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #19 on: February 15, 2021, 11:10:03 AM »
That makes sense, thanks for explaining.
Jim
You live, You learn,
You die, you forget it all.

Offline RB

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #20 on: February 21, 2021, 07:26:15 AM »
Ok, got the dial squared away. :)
A new number plate and a new finger wheel are on the way.
The next step was getting the nut off the bottom.
I inquired in another post, I will try to stay with this one for the remainder of the project.
It was suggested that I remove the transmitter and the wires, I did.
and soak in oil, and hit it with a chisel...the nut...
It came off!!!
Now, I gotta find a plater and get the top parts re nickled.
Brass is showin through everywhere.
Next question:
How do I dis assemble the transmitter without damaging the button?
Never done one before...

Offline allnumbedup

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #21 on: February 21, 2021, 12:49:50 PM »
Great thread if you are restoring this type of candlestick. RB or anyone: does anyone know if this SC stick model (986 or 1150?) uses the same base for it's dial version as did the little bit later SC 1178 pictured?  I am shopping for a dial base for my SC 986 candlestick that accommodates a North dial like RB is working on and am wondering if 1178 base parts would work. So far alot of 'dial 986 sticks'  I have found on-line have newish AE dials on repro WE bases. thanks JC

Online Doug Rose

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #22 on: February 21, 2021, 02:40:19 PM »
Great thread if you are restoring this type of candlestick. RB or anyone: does anyone know if this SC stick model (986 or 1150?) uses the same base for it's dial version as did the little bit later SC 1178 pictured?  I am shopping for a dial base for my SC 986 candlestick that accommodates a North dial like RB is working on and am wondering if 1178 base parts would work. So far alot of 'dial 986 sticks'  I have found on-line have newish AE dials on repro WE bases. thanks JC
One of my favorite Phones, SCs first handset...sometime called by collectors the SC A1. SC did not make dials yet, so they used Norths....just a stunning set. Nice careful restoration as well. Beautiful....Doug
Kidphone

Offline allnumbedup

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #23 on: February 21, 2021, 05:25:05 PM »
doug not trying to get off topic on RB's phone and this is a picture /not my phone. but I agree with you. JC

Offline RB

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #24 on: February 25, 2021, 09:56:08 PM »
Update.
Painted the edge of the dial, installed new number plate.
Waitin on chrome finger wheel.
That will look nice! ;)
I got a different transmitter cup, not so worn off.
It will be installed.
The next part, the base.
Most of the shiny stuff is worn off, leaving a dull finish.
So, I will be repainting that.
Tried to polish it, but no go.
Just can't stand to see bad finish.
It is hard to tell from pics, but it is pretty tired lookin.
comments welcome.

Offline RB

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #25 on: March 21, 2021, 03:03:49 PM »
update:
Got the base and tube painted and reassembled.
put the dial in it, then when I was lookin it over, noticed all the pics in the schematic, are useing a single pole double throw switch config.
My 51 dial, has a progressive switch...
now how am I gonna have to rewire this thing to get that to work?
The transmitter and hook parts are at the platers.
should hear something on Monday.
Gotta figure out how to wire this dial.

Online Key2871

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #26 on: March 21, 2021, 03:59:42 PM »
Nice job painting, it came out well.
I don't know much about candle sticks, but there will be someone who does at some point.
Thumbs up!
KEN

Online Doug Rose

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #27 on: March 21, 2021, 05:39:09 PM »
update:
Got the base and tube painted and reassembled.
put the dial in it, then when I was lookin it over, noticed all the pics in the schematic, are useing a single pole double throw switch config.
My 51 dial, has a progressive switch...
now how am I gonna have to rewire this thing to get that to work?
The transmitter and hook parts are at the platers.
should hear something on Monday.
Gotta figure out how to wire this dial.
nice job Rod....you done good. I am not a painter....you are...Doug
Kidphone

Offline RB

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #28 on: April 15, 2021, 09:05:52 PM »
Update:
Parts back from plater, and mostly installed.
They look Sweeeeeeeet!
Hardest part is keeping from dinging it just trying to reassemble it!
Already got a couple scuffs...arg...deep breath...movin on.
Went together pretty smooth.
The sub cord is a really nice, could be Norwegian type??? can't remember where I got it.
Some of those phones had 5 and 6 wire cords. And they are made very well.
This one has 5, I needed 3. overkill, and like 10' long, but looks nice!
Need to buff the Rec yet, and get the right parts to install the Transmitter.
I need to know what size gasket, or gaskets I need.
Seen a couple on ebay, but not spec, SC, so don't know.

Online Doug Rose

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Re: Got my 1st SC stick today. need help gettin into it
« Reply #29 on: April 15, 2021, 09:52:49 PM »
Rod....looking good my friend!
Kidphone