Lub beam tetrode, patented nyob rau hauv 1933, tau tsim nyob rau hauv teb chaws Aas Kiv los ntawm ob EMI engineers, Cabot Bull thiab Sidney Rodda, raws li kev sim hla lub hwj chim pentode, uas nws patent yog muaj los ntawm Philips.
Npaj Pentode yog dab tsi?
Ib kab tetrode, qee zaum hu ua beam fais fab raj, yog ib hom lub tshuab nqus tsev lossis lub tshuab nqus tsev uas muaj ob daim phiaj thiab cov ntawvcov kwj hluav taws xob los ntawm cathode mus rau ntau qhov. collimated beams los tsim ib qho chaw uas tsis muaj peev xwm them cheeb tsam nruab nrab ntawm lub anode thiab screen kab sib chaws kom rov qab anode Secondary emission …
Lub tshuab nqus tsev tau tsim thaum twg?
1904: British engineer John Ambrose Fleming invents thiab patents thermionic valve, thawj lub tshuab nqus tsev vacuum.
Lub ntsiab lus ntawm pentode yog dab tsi?
: lub tshuab nqus tsev nrog tsib lub electrodes suav nrog cathode, anode, daim phiaj tswj, thiab ob daim phiaj ntxiv lossis lwm yam electrodes.
Lub hom phiaj ntawm daim phiaj npo hauv lub tetrode valve yog dab tsi?
Daim phiaj npo ua haujlwm ua cov ntaub thaiv hluav taws xob tiv thaiv kab hluav taws xob los ntawm kev cuam tshuam ntawm phaj thaum nws muaj peev xwm hloov pauv. Txawm hais tias lub pentode tau hloov lub tetrode nyob rau hauv feem ntau lub tshuab nqus tsev twj tso kua mis, ib tug tshwj xeeb tsim tetrode, hu ua lub beam-power raj, tau pom nws kim heev nyob rau hauv lub hwj chim amplification.
