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<DIV><FONT size=2>I havent had a amp here with 572B tubes yet.</FONT></DIV>
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<DIV><FONT size=2>are they bigger than 811A.</FONT></DIV>
<DIV><FONT size=2>The collins does not have much room.</FONT></DIV>
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<DIV><FONT size=2>There is a little more room to play with on
heathkit.</FONT></DIV>
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<DIV><FONT size=2>Any one tryied 572B tubes in</FONT></DIV>
<DIV><FONT size=2>Collins 30L1?</FONT></DIV>
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<DIV><FONT size=2>I will look for spec sheet on 572B..</FONT></DIV>
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<DIV><FONT size=2>Robert,</FONT></DIV>
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