I'm hoping this message does n't illicit too many sarcastic replies... I've got a pair of celestion ditton 33's and the woofer isn't working on one of them. I dont know where to begin with the electronics. The speaker looks ok and there arent any broken wires, the top two speaker elements are working.
Ditton 33 woofer
Have you checked to see if the leads to the woofer are ok? Lay the speaker face up unscrew the 4 mounting bolts and carefully lift the unit out, may need to lever up gently with a round bladed knife or something. If you can remove the woofer completely by disconnecting the speaker leads you can also inspect the wires to and from the crossover circuit.
Hope this helps? 🙂
Have you checked to see if the leads to the woofer are ok? Lay the speaker face up unscrew the 4 mounting bolts and carefully lift the unit out, may need to lever up gently with a round bladed knife or something. If you can remove the woofer completely by disconnecting the speaker leads you can also inspect the wires to and from the crossover circuit.
Hope this helps? 🙂
It's going to be easiest to note down the wiring colour coding, then unsolder the woofer and test it with a 1.5V battery. You should see the woofer move and make a crackling noise if all is well.
After that, look for a broken solder joint on the bass section.
You could test it in situ. Apply 1.5V to the hot/red speaker terminal and the earth of the battery to negative, and the woofer should move outwards.
Crossovers often come loose, or copper tracks break due to vibration.
Usual comment about it being worth replacing ageing non-polar electrolytic capacitors with similar 50V types. But they are unlikely to have gone short circuit. Coils are usually tough old beasts. 🙂
After that, look for a broken solder joint on the bass section.
You could test it in situ. Apply 1.5V to the hot/red speaker terminal and the earth of the battery to negative, and the woofer should move outwards.
Crossovers often come loose, or copper tracks break due to vibration.
Usual comment about it being worth replacing ageing non-polar electrolytic capacitors with similar 50V types. But they are unlikely to have gone short circuit. Coils are usually tough old beasts. 🙂
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