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Old 08-02-2010, 12:20 AM
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wa2ise wa2ise is offline
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Quote:
Originally Posted by David Roper View Post
wa2ise, check the parts list. It clearly says the choke is 'part of the speaker' which is borne out by the picture bandersen posted.
Looks like you're right, though under the Sam's listing for the speaker replacement, for "Field resistance" it says "PM". Source of my confusion. But further down it says that the L1 choke is part of the speaker assembly. And I don't see it on the TV chassis . Admiral may have changed, in later production, from the field coil speaker to a PM one, and used a regular choke for L1, mounted to the speaker frame. In any event, you'd be more likely to find separate speaker, audio transformer, and filter chokes, and you could build a replacement assembly with that, if it turns out that the picture tube, flyback and so on are in good condition. A temporary kludge would be to use a power resistor of about 85 ohms and some extra capacitance across cap C1B to make up some of the lost filtering the choke would have given you. A 100uF cap probably.
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