Shaun Merrigan
Classic Electronic Restoration, Vacuum Tube Audio, Technical History, Photography
Tag: Hickok 209A
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Originally posted in December, 2018 This post documents my restoration of the Hickok 209A VTVM, SN 1333254. Outside visual inspection results: Inside visual inspection results: From the above images, it is clear that the battery holder will require some corrosion mitigation and restoration. Fortunately, it is restorable as the parts are of heavy gauge (including…
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Originally posted in December, 2018 This post continues my restoration of the Hickok 209A VTVM, SN 1333254, Part 1 Recall that the D-cell battery holder was badly corroded. Here is process I used to restore the battery holder: Once all the corrosion product was removed and neutralized I decided to prime and paint the battery…
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Originally posted in December, 2018 This post continues my restoration of the Hickok 209A VTVM, SN 1333254, Part 2 Hickok 209A VTVM Restoration Part 6: Component replacement decisions In this Part 6 of the series I will document the condition of the passive circuit components in the Hickok 209A VTVM, and justify why I decided…