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I got mine working with a spraying of WD40. It may be the bearings are worn, and allowing it to rub the face of the coil disc, in which case it's probably had it. If I remember the circuit board, it's a bit hidden away, but if you fancy some micro-soldering, I guess you could change the potential divider a ‹ê@Â e way the circuit works is the transistor is 'on', which attracts the pendulum, then its movement generates back emf which switches it off, so it returns to start the cycle again. This means increasing the base potential would need a bigger back emf to counter it, and might not result in it switching off at all. Conversely, too little base potential might not switch the transistor on in the first case. If I've made a fool of myself in front of proper electronics engineers, do let me know so I avoid it another time! The hair-spring and balance-wheel bearings etc also contribute to the general drag. In this case, WD40 is quite a suitable material, since the paraffin content thins the stiffened lubricant, and there is minimal residual lubrication from the WD40 itself. BTW, I took a bumper up to Stanford Hall for you, Andy, but maybe you didn't find the club stand? Dave. UK VW Type 3&4 Club http://www.hallvw.clara.net/ -----Original Message----- From: Andy Thomas <andy@type-one.demon.co.uk> To: type3@vwtype3.org <type3@vwtype3.org> Date: 05 May 1999 20:59 Subject: [T3] clocks >hi, > i've got a problem with my 12v clock. Mechanically it's fine, >but the electromagnet arrangement keeps sticking. Basically the pendulum >will either stick to one side or in the middle after a while of working >okay. Can I replace the resistors to increase the power of the >electromagnet? or does anyone have any other suggestions? >Thanks > >Andy > >------------------------------------------------------------------- >Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe >