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Audio and Video Talk
The Vintage Audio Section
Quad II mono-block amplifier question
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<blockquote data-quote="Family_Dog" data-source="post: 1036055" data-attributes="member: 82"><p>That transformer has been worked on, the original transformers are potted with a tar=like substance. Only way to remove that was to heat the transformer up on a hot plate and dig it out, a little at a time. I had a Quad with a 110v AC power transformer so had to do this in order to remove it and fit a 220v transformer in its place. </p><p></p><p>I do not know that sealer you depict but it looks like it could do the job, just make sure it definitely is very high resistance to electricity.</p><p></p><p>The voltages are good, the HT is actually 310 - 0 - 310v.</p><p></p><p>One fact I forgot to mention earlier is that it is a good idea to replace the GZ32 rectifier with a GZ34, which supercedes the now obsolete GZ32 and runs a bit cooler as well.</p><p></p><p></p><p>-F_D</p></blockquote><p></p>
[QUOTE="Family_Dog, post: 1036055, member: 82"] That transformer has been worked on, the original transformers are potted with a tar=like substance. Only way to remove that was to heat the transformer up on a hot plate and dig it out, a little at a time. I had a Quad with a 110v AC power transformer so had to do this in order to remove it and fit a 220v transformer in its place. I do not know that sealer you depict but it looks like it could do the job, just make sure it definitely is very high resistance to electricity. The voltages are good, the HT is actually 310 - 0 - 310v. One fact I forgot to mention earlier is that it is a good idea to replace the GZ32 rectifier with a GZ34, which supercedes the now obsolete GZ32 and runs a bit cooler as well. -F_D [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
Quad II mono-block amplifier question
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