In Reply to: Please Explain what a fisher 400 Tuning tube does? posted by Bru7 on December 21, 2005 at 18:22:20:
It is just an indicator, but as such helps tune stations in just like modern tuning meters. Adjust tuning dial for narrowest gap on indicator tube to indicate best tuning dial position & the tightness of closure is dependent on the received signal strength. Yes, there were different tuning-eye tube *patterns*.
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- Re: Please Explain what a fisher 400 Tuning tube does? - ROehlert 18:33:28 12/21/05 (0)