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Audio and Video Talk
The Vintage Audio Section
A sad pair of 1949 Jensen AO 20672 Field Coil transducers.
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<blockquote data-quote="Micron" data-source="post: 902669" data-attributes="member: 17294"><p>Thank you Crankshaft and Katji. Do you have any solvents and adhesives to recommend I try? I have never attempted this kind of repair.</p><p></p><p>Thank you F_D. I am aware of that. Building valve power supplies was part of my plan. I have it written somewhere, but from a vague memory I recall them having around 230V DC on the field coils in the Hammond Tone Cabinet. The field coils did act as smoothing chokes in the Tone Cabinet circuit too, but I was planning on keeping the power supplies for the field coils and the two amplifiers as separate circuits in separate chassis, so that I may change the amplifiers powering the speakers while using the same power supplies for the speakers. With that in mind I won't be using the field coils as chokes, but rather I will give them the power that they need with the power supplies that I will build, and I will have separate power supplies for the amplifiers.</p></blockquote><p></p>
[QUOTE="Micron, post: 902669, member: 17294"] Thank you Crankshaft and Katji. Do you have any solvents and adhesives to recommend I try? I have never attempted this kind of repair. Thank you F_D. I am aware of that. Building valve power supplies was part of my plan. I have it written somewhere, but from a vague memory I recall them having around 230V DC on the field coils in the Hammond Tone Cabinet. The field coils did act as smoothing chokes in the Tone Cabinet circuit too, but I was planning on keeping the power supplies for the field coils and the two amplifiers as separate circuits in separate chassis, so that I may change the amplifiers powering the speakers while using the same power supplies for the speakers. With that in mind I won't be using the field coils as chokes, but rather I will give them the power that they need with the power supplies that I will build, and I will have separate power supplies for the amplifiers. [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
A sad pair of 1949 Jensen AO 20672 Field Coil transducers.
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