Recent content by davefr

  1. davefr

    Small Electric Time Company Tower or Street Clock Movement

    That's a Telechron B-3 style rotor. I have plenty of them rebuilt and ready to ship. They have a standard shaft which is 1/8" X 1/2" w/no gear. If your rotor has a non standard shaft/gear then I'd probably have to rebuild your existing rotor. If your coil measures around 600 ohms then it can...
  2. davefr

    Standard Electric Standard Electric Time Co. "Slave" Clock / very basic electronics question

    My next step would be to contact Ken Reindel and see if his pulser would work. He claims it's capable of 1.5 to 25 V and it's 4 watts. At 1.5 V that would be more then enough current. He also mentions Standard Electric in the specs. I have Ken's pulser and it's been flawless. Here's the...
  3. davefr

    Standard Electric Standard Electric Time Co. "Slave" Clock / very basic electronics question

    ^^^That might be the answer. The OP should try and actuate the clock with one or two D batteries and measure the amps with his meter. In any event, his 50 ma pulser won't provide the power without a secondary circuit to boost the power.
  4. davefr

    Standard Electric Standard Electric Time Co. "Slave" Clock / very basic electronics question

    No, that will make is worse. You need the full 24 VDC but more amps. Adding a resistor will reduce the voltage AND the amps.
  5. davefr

    Standard Electric Standard Electric Time Co. "Slave" Clock / very basic electronics question

    That means the output of the synchronizer is being overloaded by a 10 ohm load. Skruft is right. You need the synchronizer to drive a secondary circuit that can power the coil. A 24 VDC power supply and amp meter will tell you how much current the coil needs when it actuates. Ohms law would...
  6. davefr

    Standard Electric Standard Electric Time Co. "Slave" Clock / very basic electronics question

    That coil sure looks like it could be 10 ohms. (Fairly large gauge wire and not very many turns.) If it is 10 ohms and 24V then it's asking for a 2.5 amp pulse to actuate.
  7. davefr

    Standard Electric Standard Electric Time Co. "Slave" Clock / very basic electronics question

    Have you measured the resistance of the clock's solenoid coil? 50 mA max. output current of the pulser may simply be too weak for your specific clock. (the fluttering may reflect that). Ohms law would say that your coil needs to be 480 ohms or greater given the specs of your pulser. I would...
  8. davefr

    Pam Advertising Clock - Ingraham Model 29 Movement Issues

    The solution is to replace the Ingraham movement with a new Hansen motor/movement. Choose the length of the shaft and it should probably have the bottom stem option. You'll need to make an adapter to mount the movement. You can try Waynes Neon clocks for the adapter. They use to sell the...
  9. davefr

    Can I clean a United Clock electric motor in my ultrasonic?

    No, if you're talking about a "motor" you do not want the integrated coil to go in an ultrasonic cleaner. The right way to clean any motor or movement is disassembly and then decide on the cleaning/lubrication approach for each component. Ken has done some excellent presentations on restoring...
  10. davefr

    Electric Neon Clock restoration guidance.

    Your restoration looks great!! Glad you found the Neon parts.
  11. davefr

    KWM bushing quality question

    You might want to try Perrins up in Canada. I've found them to be the most reliable source for Bergeon bronze and brass in KWM sizes. They also stock in 100 packs.
  12. davefr

    GE model 416 missing rotor

    Yes, but they should still be rebuilt. Most are 70+ years old and look like this:
  13. davefr

    GE model 416 missing rotor

    The rotor is a std. Telechron B-3. You can order one here: http://www.telechronclock.com/page3.html You could also use a B-13 which is a later replacement for the B-3. They cost less but don't run as quiet as B-3's.
  14. davefr

    Searching for 4.5w Replacement Motor

    You need to pay attention to the RPM and direction. That Timesavers motor is 1/6 RPM. I'd almost bet a 9 tooth motor runs faster. (probably 1 RPM). Transplanting a gear is possible if the O.D. of the drive shaft is the same.
  15. davefr

    Anyone know where I can get a chain for a Jefferson Golden Suspense Clock?

    Your chain looks fine. I'd focus on the sockets just like Ralph suggested.

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