Author Topic: Telechron 1L715  (Read 677 times)

Larry

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Telechron 1L715
« on: June 02, 2019, 09:29:45 AM »
Last week at the local flea market, I saw a large lighted Telechron commercial clock.  The seller had a $150 price on it, but offered to sell it to me for $110.  He eventually came down to $100, but I wasn't entirely impressed given that the clock had been dismantled and incorrectly reassembled and had some (hopefully only minor) parts missing.  I left the clock there and returned home, but later found that these clocks are rather rare and somewhat valuable.  I returned to the flea market this morning, and the clock was back.  This time, the seller offered to sell it to me for $95, so i bought it.  I hope that I didn't make a mistake.  Here are two pictures of the clock fresh from the flea market.  I haven't yet attempted to do anything with it.

Larry

Kid Clock

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Re: Telechron 1L715
« Reply #1 on: June 03, 2019, 07:10:44 PM »
I looks like you made a good deal.  (Some might say a steal.)  Both glass pieces appear to be great.  No shipping. (These often crack in shipping...) 

Larry

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Re: Telechron 1L715
« Reply #2 on: June 03, 2019, 09:42:12 PM »
Both the crystal and glass dial are in good condition.  The back side of the dial was horribly dirty, and gently rubbing it with a damp cloth or sponge did almost nothing to remove the dirt/soot.  I experimented with diluted "LA's Totally Awesome All-Purpose Cleaner" and a melamine foam sponge, and it cut quickly through the filth without damaging the paint, so now the dial is clean.  All of the screws which hold the case together are missing, so I need to find suitable replacements.  The case has some rust, so I plan to repaint it.  I dismantled and cleaned the pull-chain switch because I was measuring very high DC resistance through it.  I haven't looked at the movement or rotor yet.  I hope that this clock comes out well.  I spent more on it than on almost any other clock.

Larry

Larry

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Re: Telechron 1L715
« Reply #3 on: June 05, 2019, 09:44:26 AM »
As I have been working on this clock, I noticed that one of the wires going to each bulb socket is actually resistive with asbestos insulation (because it would become hot when the current is flowing through the bulb).  I measured the resistance at about 155Ω.  Why did GE/Telechron do that?  Was it not possible to use lower lower light bulbs?  I am wondering if I should replace the wires and find low power bulbs.

Larry

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Re: Telechron 1L715
« Reply #4 on: June 05, 2019, 08:22:07 PM »
Dang... just rewire everything and run equivalent led bulbs.  Problem solved.

Pappy

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Re: Telechron 1L715
« Reply #5 on: June 12, 2019, 10:47:54 AM »
As I have been working on this clock, I noticed that one of the wires going to each bulb socket is actually resistive with asbestos insulation (because it would become hot when the current is flowing through the bulb).  I measured the resistance at about 155Ω.  Why did GE/Telechron do that?  Was it not possible to use lower lower light bulbs?  I am wondering if I should replace the wires and find low power bulbs.

Larry

I ran into those wires on a #6 ad clock.  Blew my mind.  I kept stripping more and more "insulation" back looking for copper!  I'm still weirded out by it.   ?-?
What this country needs is a good $5 parts clock.

Larry

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Re: Telechron 1L715
« Reply #6 on: June 12, 2019, 12:40:29 PM »
In the late 1930s, some small radios were made with resistive power cords which would drop the voltage to the tube filaments.  Radio collectors call these sets "curtain burners" because the power cords would become very hot which the radios were on, and they would tend to ignite flammable things, such as curtains, which were too close to them.

I didn't find any appropriate low wattage bulbs at the hardware stores, so I will probably put the wires back as they are if and when I reassemble the clock.  I have been having an awful time finding paint which is anywhere near the color of the original.  I plan to try a hobby shop or two next.  I really don't want to use the dark oil rubber bronze paint which I used on a couple of other large wall Telechrons.

Larry

Larry

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Re: Telechron 1L715
« Reply #7 on: June 12, 2019, 03:50:35 PM »
I have a GE electric fan from the 1940s which is a very similar, if not the same, metallic bronze color.  I therefore searched on the AFCA forum and found a suggestion from several years back about Dupli-Color bronze wheel coating paint being a close match.  Has anyone here tried that paint?

Larry

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Re: Telechron 1L715
« Reply #8 on: June 12, 2019, 06:15:08 PM »
Many large wall clocks seemed to feature this color...

http://telechron.net/forager/index.php?topic=1237.msg14587#msg14587

Larry

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Re: Telechron 1L715
« Reply #9 on: June 12, 2019, 08:43:17 PM »
Many large wall clocks seemed to feature this color...

http://telechron.net/forager/index.php?topic=1237.msg14587#msg14587

I think that that color is much darker than this clock.  I have a can of oil rubbed bronze paint (Krylon, I think), and I have used it on a couple of Telechrons, but it is much darker than the 1L715.

Larry

Larry

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Re: Telechron 1L715
« Reply #10 on: June 27, 2019, 11:28:26 AM »
I just reassembled the 1L715.  I painted the case and the heads of the 12 sheet metal screws with Dupli-Color bronze Wheel Cover paint.  It came out fairly well but not as smooth and shiny as i had hoped.  The clock should be fully functional now.  The movement and rotor are good, and the glass looks good after extensive cleaning.  I kept the resistive wires with the bulb sockets and used two 25W bulbs as originally specified.  Here are a couple of pictures.

Larry

19and41

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Re: Telechron 1L715
« Reply #11 on: June 28, 2019, 02:55:01 PM »
Looks Great!

Larry

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Re: Telechron 1L715
« Reply #12 on: June 28, 2019, 04:49:56 PM »
The clock ran smoothly and quietly for many hours after i hung it on the wall, but this afternoon the rotor became quite noisy.  i am going to have to go through a significant amount of work to remove the rotor now.  This isn't my first Telechron which became noisy after running a while, but none of the others make it so difficult to access the rotor.

It does look quite nice though.


Larry

skruft

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Re: Telechron 1L715
« Reply #13 on: July 03, 2019, 11:38:39 PM »
Very nice. There are much smaller incandescent bulbs than 25w with regular base if you chose to use them. Seems to me there were 15w and 7-1/2.

Larry

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Re: Telechron 1L715
« Reply #14 on: July 03, 2019, 11:46:46 PM »
It actually looks nice with the 25W bulbs.  The resistive wires reduce the amount of current flowing, so the bulbs glow less brightly and somewhat orange.  So far, I have only turned on the lights briefly to impress people.  I do not plan to leave them on for long periods.

Larry

 

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