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    Jefferson Golden Hour Hand Question

    when you send the shaft through the hole in the glass, there is quite a bit of slop. how are you supposed to keep it centered, unless there was somekind of shouldered fiber washer used originally? the ones timesavers sell are flat, so there is no way to get it centered, except by eye. I do know...
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    Question about a Jefferson Golden Hour

    If you have the nylon friction pads, you dont want to lube those. introducing lubricant will just gum everything up. i suppose if your clock is older, to where the friction pads are metal, then i guess perhaps lube was needed.
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    Jefferson Golden Hour Hand Question

    I just recently rebuilt a Jefferson Golden Hour. Mine is date stamped 1958. I noticed that the hole in the glass for the hand arbor is much larger than the arbor. What should be in there to center the assembly? im thinking later clocks had smaller holes, since the parts TimeSavers carry are...
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    IBM CLOCK garage sale find

    You can use this to run your clock. Model 1900W-UNV Modular Clock Winder - Ken's Clock Clinic You need to connect the A and B wires togther. C, the Green wire, is common. By tying the A and B wires together you prevent the clock from stopping when the contact changes from the A to the B wire...
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    IBM International Model "A" Master Clock

    I think these were meant to work off a battery. From the IBM Clock Corner archives.
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    IBM Simplex synchronous clock rattling?

    Time Savers still has sychron rotors and movments in stock.
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    Explanation of IBM Three Wire Correction System.

    You would have to ask Jim where they are from. My guess is they are from a 1950s IBM or maybe even Simplex Service Manual built around the 090 movement found on the 91 series masters. That is what Jim gave me when I had questions on my 91 series master. I also think the print you are showing is...
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    Explanation of IBM Three Wire Correction System.

    These scans are via Jim Lane. Here is an explanation of the IBM Three Wire Correction System.
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    IBM Slave Clock Wiring

    Its simple. When using a clock impulser, you need to tie the A and B wires together. Without clock in front of me to look at, I cant remember which is which. The usual voltage on IBM slaves is 24v DC. Isnt the schematic sticker still in the clock? One of the contacts is supposed to open...
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    Help Identifying International Time Recording Clock

    The 11-4 model number seems like it could be indicating a minute impulse master. Who really knows.
  11. I

    Help Identifying International Time Recording Clock

    About all one can glean from looking at the model list on the IBM Clock Corner site is that is a secondary clock with a second hand. what its function beyond having a second hand is unknown. IBM - Archives - Clock Corner - Reference Room - United States See Model listing under the General...
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    Standard Electric Standard electric master with bad motor, conversion to self winding?

    It amost seems the mechanical part can be easily serviced and rebushed if needed very easily and accessible. it seems perhaps the issue might be electrical.
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    Standard Electric Standard electric master with bad motor, conversion to self winding?

    first off, what you have there is just a bell timer. it has the usual Standard tape driven program device. the brass drum toward the bottom of the movement is the top bearing for the tape. i dont think you can convert this to a minute wind device, becasue you need a mainspring, some kind of...
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    IBM My first IBM master

    his clock should run about 12 hours if it has the original mainspring. those old ITR instructions are just that, OLD, for older products. Plus the section you got that 55 minutes from is headed with Old Style Spring Driven Clock. Some older clocks used a coil spring and not the flat spring...
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    Seek IBM 6148 relay

    Scot, thanks for looking.
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    IBM My first IBM master

    Well, im using the seperate winder on mine so I dont have that transformer plugged in contantly. It sits there and hums, plus i have peace of mind knowing im not keeping 70 year old wiring constantly plugged in. Plus, it also eliminates the correction cycle relays clanking 20 times each hour...
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    IBM My first IBM master

    the easiest way to wind the clock is to just bypass everything. get a clock winder from kensclockclinic.com. you can disconnect the wind coil wires and connect the winder right up to it. all it will do is just wind the clock. none of the master clock features or even the correction cycle will...
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    IBM My first IBM master

    My opinion is the telechron rotor and contact might be the minute impulse trigger for the 803 program unit. It "might" use a 115 volt AC impulse coil, so the contact is also seeing 115v AC. Really hard to tell just by looking at pictures.
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    IBM My first IBM master

    the device at the left, under the movement, looks to be a modified 803 program unit. they were used in the later 91 Series masters. perhaps one of the added bits is to advance the 803 program drum. all the rows of newer relays on the bottom, the pushbuttons, and the switches is looking like...
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    Seek IBM 6148 relay

    Well, if it had an AC rated coil in it, it would be perfect. Thats the style that was in my clock, but it needs an AC rated coil. The one in the ebay auction is a DC rated coil

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Weekly News 7/7/19 by Tom McIntyre