puffernutter
Puffernutter
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- 1,804
- Location
- Wiltshire
Now turn those dirty minds off now!
For the last 2 years I have had a GENTS pulsynetic master clock clunking away in my hall and driving a slave in the living room. It is pendulum driven and gives a pulse every 30 seconds.
On a bit of an impulse buy (sorry about the pun!) I purchased a double faced clock that looked as if it had a pulse type mechanism. It arrived last week and I finally got to play with it last night.
It is German (at least the instructions for voltage setting are in German). It has no provenance (I was hoping it might be a railway clock, but nothing shows where it might have been used, or even its age). It appears to work off DC at either 12v, 24v or an unspecified voltage (I haven't experimented with that setting yet).
Interestingly it needs the polarity reversing after each pulse to continue the movement. Two pulses of the same polarity and after the first movement it doesn't move again (until polarity is reversed),.
So, has anybody heard or seen this type of clock/mechanism and is there any way I could interface it to the pulse from the Gents master clock. I could use a very high resistance relay, but my problem is figuring out how to reverse the polarity after each pulse.
You all tend to have some brilliant insights!
Any thoughts?
Peter
For the last 2 years I have had a GENTS pulsynetic master clock clunking away in my hall and driving a slave in the living room. It is pendulum driven and gives a pulse every 30 seconds.
On a bit of an impulse buy (sorry about the pun!) I purchased a double faced clock that looked as if it had a pulse type mechanism. It arrived last week and I finally got to play with it last night.
It is German (at least the instructions for voltage setting are in German). It has no provenance (I was hoping it might be a railway clock, but nothing shows where it might have been used, or even its age). It appears to work off DC at either 12v, 24v or an unspecified voltage (I haven't experimented with that setting yet).
Interestingly it needs the polarity reversing after each pulse to continue the movement. Two pulses of the same polarity and after the first movement it doesn't move again (until polarity is reversed),.
So, has anybody heard or seen this type of clock/mechanism and is there any way I could interface it to the pulse from the Gents master clock. I could use a very high resistance relay, but my problem is figuring out how to reverse the polarity after each pulse.
You all tend to have some brilliant insights!
Any thoughts?
Peter