Shaun Merrigan

Classic Electronic Restoration, Vacuum Tube Audio, Technical History, Photography

Category: General

  • Website Update

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    I have added a Resources Page to this website.  This page will include but not be limited to: Links to my GPS Reference Status Link to my Fluke 732A Voltage Source Status Link to my local Weather Station (Kildare, Edmonton) Reference Material for Classic Electronics Restoration Safety Information pertaining to Classic Electronics Restoration Data Sheets…

  • HP 8903B Audio Analyzer PCB Pad Replacement

    HP 8903B Audio Analyzer PCB Pad Replacement

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    Originally posted in August 2017 HP 8903B Audio Analyzer PCB Pad Replacement Visual inspection of my recently acquired HP 8903B Audio Analyzer revealed that the polymer pads on the bottom side of the main PCB were seriously deteriorated: Besides making an unsightly mess, this residue may form corrosive products which, over time, could damage the PCB.…

  • Website Relaunch and Update

    Website Relaunch and Update

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    Welcome Welcome to my redesigned site documenting vintage electronics restoration, vacuum tube audio and radio repair, and the history of technology. Here I share hands‑on projects, repair walkthroughs, historical research, and high‑resolution photos from my bench. Relaunch note I’m rebuilding the site from the ground up to replace ageing, hard‑to‑maintain code with a cleaner, more…

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