Well, not much time to play with the projector lately. Here is a quick update.<\/p>\n
Only a few movies with the temperature probe inside. It seems to run around 30C and climb to 46C after powerdown (as the fan stops cooling it for a little while).<\/p>\n
I’ve been thinking about attempting the Solar Cell Gray Scale calibration procedure. This makes use of a ‘cheap’ solar cell and a multimeter to measure the light output and match the three tubes. <\/p>\n
Of course, I needed to understand how to set grayscale on the CRT. After much thinking, I realized I had the information in hand. The RGB Adjust .pdf in the files section has everything I need to know. <\/p>\n
Careful reading of this resulted in my understanding WHY the Ampro seems to have high brightness and contrast settings. The calibration procedure has the remote control settings set to 95% bright and 95% cont. No wonder you need to run with big numbers to get the ‘right’ image..<\/p>\n","protected":false},"excerpt":{"rendered":"
Well, not much time to play with the projector lately. Here is a quick update. Only a few movies with the temperature probe inside. It seems to run around 30C and climb to 46C after powerdown (as the fan stops cooling it for a little while). I’ve been thinking about attempting the Solar Cell Gray … Continue reading “Grayscale”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-22","post","type-post","status-publish","format-standard","hentry","category-ampro-journal"],"_links":{"self":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts\/22","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22"}],"version-history":[{"count":0,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=\/wp\/v2\/posts\/22\/revisions"}],"wp:attachment":[{"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lowtek.ca\/ampro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}