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    Simplex Master Clock with design fault

    Thank you all for your thoughts. I agree that it is probably a prototype for the reasons given above. I have further thoughts to back up that idea. Firstly, why would a production model have a combination of screw terminal connectors and edge connector?The edge connector is used where a repair...
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    Simplex Master Clock with design fault

    Sorry, I should have posted some pictures of the complete clock. I've temporarily put it back together so here's more pictures. The brand label indicates it is a Simplex clock and the other label shows it as a model 946-2. Quite a pleasant 80's design looking at it, but as we say in England...
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    Simplex Master Clock with design fault

    Good evening folks, I recently obtained a Simplex master clock "type 946-2 Op" from a local auction house here in the UK. Externally, it seemed to be of good quality, but upon closer inspection I was disappointed. The internal movement was a cheap, quartz type with plastic gears as fitted to...
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    Seth Thomas K&O ATO

    I've found that the type of battery can affect the time keeping by diverting some of the magnetic field. Original zinc batteries had no metal case but those dreadful Duracell types have a steel case which can cause problems. I have found the type that take a 'C' size cell are worse affected and...
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    Electronic circuit for Gents Chronopher III

    Evening folks, Does anyone have a copy of the electronic circuit for a Gents Chronopher II master clock please? It's the control board I'm after, but both boards would be useful. Many thanks if someone can help.
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    Were many Gents Chronopher masterclocks exported from the UK to the US or Europe?

    Hi folks, I have collected several of these master clocks over the years, but wondered if they were ever exported to other countries? The Chronopher slave clocks are rarely offered in auction over here in the UK. There is a similar type bearing the Moser Baer name (made in Switzerland) and...
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    8-day English clock mainspring replacement

    Sorry for the late reply.... I removed the pair of 'butterflys' from between the plates, then the pallet assembly. I then loosened the pair of bottom plate nuts 1 turn and the top plates nuts 3-4 turns. This allowed me to prise the plates far enough apart to release the escapement wheel whilst...
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    8-day English clock mainspring replacement

    Thanks again guys. I will check the EW first as I can extract that without losing the rest nas swap it over with that from the other movement. I will also use the pallet from other movent in case they have 'worn together' over the years. I'm off to the continent for a week (the wonder of the UK...
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    8-day English clock mainspring replacement

    I spoke too soon and now it's stopped again. Tried restarting it and it runs for a few minutes, then stops. I adjusted the movement for an even tick, but there is a spot where the tick get fainter as though it is going to stop, then it reocvers and gets louder again. The change in sound level...
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    8-day English clock mainspring replacement

    I had an idea andtried it last night. The Time (T) and Strike (S) barrels look identical so I removed the Strike barrel and fitted it to the centre position of the movement asthe Time barrel. The clock ran all night and all today with the pendulum attached. The tick and tock seem louder now...
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    8-day English clock mainspring replacement

    Many thanks shutterbug. I've noticed that when it does stop, it's usually about 5 minutes to the hour when the longer peg on the centre wheel tries to release the chimes pre-strike acouple of minutes to the hour. The tick seems to get fainter and louder too, but I can't feel any tight spots or...
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    8-day English clock mainspring replacement

    Afternoon everyone. The spring length is roughly 1600mm (I measured 1500mm, but guessed the length the innermost 2-3 turns and added that on). The arbour diameter is exactly 10mm. The spring is not rusty and feels polished to the touch. The inside of the barrel seems fine too. Thanks.
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    8-day English clock mainspring replacement

    Thanks guys. The clock was completely stripped, cleaned and pivots polished. There was no obvious scoring and no oval holes in the plates. The holes in the plates were cleaned with pith wood until no more dirt came out. I did not remove the centre wheel due to difficulties in the past. There...
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    8-day English clock mainspring replacement

    Greetings folks from the UK. Some advice would be much appreciated, please. I'm in the process of overhauling a 1940s Garrard Westminster clock. The mainspring for time (centre barrel) has become weak and the clock stops after 4-5 days. I have stripped it down to it's basic components and...
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    Inducta master clock - pendulum suspension spring details?

    Very many thanks Hans. Sorry about the delay in replying here. That is a great photo and I can make what I need from that. Best wishes, Dennis.
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    Inducta (Swiss made) Master Clock

    Folks, I recently acquired one of these clocks which needs a fair bit of work and have a couple of questions, please. I've restored the heavy, steel case in black, but there are a pair unused threaded holes (one each side) of the pendulum bob. I assume these were used for fitting a clamp...
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    Inducta master clock - pendulum suspension spring details?

    Happy Easter folks. I've just acquired one of these and wondered if anyone can post a picture of the suspension spring please, which is missing on this clock. Thanks in advance. Just want to know what I'm up against if I have to make one. Dennis in UK.
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    Gents Gents C7 Pulsynetic master clock internal circuitry

    Many thanks Hans and greetings from the UK. This is exactly what I was looking for. I'm going to remove the mechanism and check the wiring point-to-point and I'm sure it's been altered. As far as I can see, the only item missing is the 2uF capacitor across the contacts, but this would not stop...
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    Gents Gents C7 Pulsynetic master clock internal circuitry

    I've attached some pictures...... does the supply go between '1' (-) and '2' (+) ? If so, then why does the label say 'No.2 Terminal for Transistor Relay only? This is a bit confusing. Thanks in advance for any help.
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    Gents Gents C7 Pulsynetic master clock internal circuitry

    Good evening folks. I've just acquired a Gents C7 master clock from an 'electrical engineer'. Unfortunately despite talking a lot about his years of experience of fixing just about everything, I would be surprised if he could change the batteries in a torch and get them the right way round...