div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader043fdocumentsusreader043viewer20220225025aaed4117f8b9a25088cbdd8html5page1jpg target=_blank img data-url=documentblackbird-vacuum-tube-preamp-homepage-board-and-the-blackbird-requires-a-12vdchtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Blackbird Vacuum Tube Preamp - Homepage - · PDF filepedal board and the Blackbird requires a 12VDC power sup- The bias point can also be shifted to the left-hand end of the tube loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsusreader043viewer20220225025aaed4117f8b9a25088cbdd8html5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader043fdocumentsusreader043viewer20220225025aaed4117f8b9a25088cbdd8html5page2jpg target=_blank img data-url=documentblackbird-vacuum-tube-preamp-homepage-board-and-the-blackbird-requires-a-12vdchtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Blackbird Vacuum Tube Preamp - Homepage - · PDF filepedal board and the Blackbird requires a 12VDC power sup- The bias point can also be shifted to the left-hand end of the tube loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsusreader043viewer20220225025aaed4117f8b9a25088cbdd8html5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader043fdocumentsusreader043viewer20220225025aaed4117f8b9a25088cbdd8html5page3jpg target=_blank img data-url=documentblackbird-vacuum-tube-preamp-homepage-board-and-the-blackbird-requires-a-12vdchtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Blackbird Vacuum Tube Preamp - Homepage -...