{"id":187,"date":"2020-09-01T19:35:56","date_gmt":"2020-09-01T17:35:56","guid":{"rendered":"https:\/\/www.deeplake.ch\/cms\/?p=187"},"modified":"2020-09-01T19:38:55","modified_gmt":"2020-09-01T17:38:55","slug":"hewlett-packard-3478a-digital-multimeter-5-5-digits","status":"publish","type":"post","link":"https:\/\/www.deeplake.ch\/cms\/2020\/09\/hewlett-packard-3478a-digital-multimeter-5-5-digits\/","title":{"rendered":"Hewlett Packard 3478A Digital Multimeter, 5.5 digits"},"content":{"rendered":"\n<p>Ebay is full of good deals. I secured this HP3478A for little money. The battery saving the calibration data had to be replaced, it was 29 years old and specified for 10 years. This needed a significant effort with diverse obsolete technologies like GPIB adapters and cables. With the help of fine folks at <a href=\"https:\/\/www.eevblog.com\/forum\/repair\/hp-3478a-how-to-readwrite-cal-sram\/\">EEVblog<\/a>, all is good and my benchtop 5.5 digits multi-meter has become my favorite tool.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"533\" src=\"https:\/\/www.deeplake.ch\/cms\/wp-content\/uploads\/2020\/09\/hp3478a_replaced_battery_small.jpg\" alt=\"replaced battery\" class=\"wp-image-189\" srcset=\"https:\/\/www.deeplake.ch\/cms\/wp-content\/uploads\/2020\/09\/hp3478a_replaced_battery_small.jpg 400w, https:\/\/www.deeplake.ch\/cms\/wp-content\/uploads\/2020\/09\/hp3478a_replaced_battery_small-225x300.jpg 225w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><figcaption>The battery is somewhat skewed as the soldering pins are a doubled-fork on the positive side.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Ebay is full of good deals. I secured this HP3478A for little money. The battery saving the calibration data had to be replaced, it was 29 years old and specified for 10 years. This needed a significant effort with diverse obsolete technologies like GPIB adapters and cables. With the help [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":188,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,14],"tags":[25],"_links":{"self":[{"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/posts\/187"}],"collection":[{"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":3,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/posts\/187\/revisions"}],"predecessor-version":[{"id":192,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/posts\/187\/revisions\/192"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/media\/188"}],"wp:attachment":[{"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/media?parent=187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/categories?post=187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deeplake.ch\/cms\/wp-json\/wp\/v2\/tags?post=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}