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Old 10th May 2021, 2:18 pm   #1
PsychMan
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Default Bambino Clock Radio movement question

Hello Folks,

I have what I believe itís a 60s transistor radio alarm clock, with windup movement.

Branded ďBambinoĒ Model CTR 160.

I got the back off the movement to see about oiling the pivots, and when I pulled the black cover off, a white plastic piece with a spring piece of copper popped out. Itís clearly playing some role in the alarm setting, as currently it seems to jam and not release the alarm properly when it triggers.

Currently trying to work out where it goes, in the mean time, any ideas?!

Cheers
Adam
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Old 10th May 2021, 2:54 pm   #2
Nickthedentist
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Default Re: Bambino Clock Radio movement question

Hi Adam,

To me, that looks like a way of coupling the rate adjustment lever by the balance wheel to the outside world, i.e. where the user could insert a screwdriver and twiddle if the clock were tending to run too slow or fast.

I think it should sit over the big, silver, slotted screw, with its extension lying on top of and engaging with the aforementioned lever (all in the top right on your first pic). The copper spider spring then drops over it, keeping it held in the right position when the back is fitted and stopping it rattle about. The bit with the screwdriver slot should poke through a hole in the back.

Could you post a picture of both sides of the back, please?

Sorry, I think the alarm fault is a separate issue.

Last edited by Nickthedentist; 10th May 2021 at 3:01 pm.
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Old 10th May 2021, 3:13 pm   #3
duncanlowe
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Default Re: Bambino Clock Radio movement question

My thoughts are exactly the same as Nick. First thought was an adjuster, you see similar for zeroing pointers on meters.
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Old 10th May 2021, 3:35 pm   #4
PsychMan
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Default Re: Bambino Clock Radio movement question

Yes Iíve just worked that out, 100% correct! Itís for the rate adjustment the way it fell out of the plastic case got me thinking it was part of the alarm

Contrary to what I said earlier, the alarm I think actuates the switch OK. But the alarm knob only moves one way. Iím thinking back to other clocks now, and actually this is normal isnít it? I.e alarm set at 2pm, time is 4:30, I canít rotate the alarm forwards to set it at 6pm, it needs to go back round.

So in actual fact, maybe thereís nothing wrong with this at all

Iíve oiled the pivots the best my clumsy hands can manage. Will post some pics shortly.

The radio side is dead as a door nail, the odd whistle here and there. 6 Sanyo transistors inside, and a few low value electrolytics Iíll want to test
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Old 10th May 2021, 5:55 pm   #5
duncanlowe
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Default Re: Bambino Clock Radio movement question

Yes, in my experience the alarm can only move one way, but that was always forward rather than backwards.
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