Description

<style>.e_editor{font:14px/24px Arial,'microsoft yahei','Times New Roman','b8bf53';}.e_editor div,e_editor p,e_editor td,e_editor th,e_editor li{font-weight:inherit;font-size:inherit;font-style:inherit;font-family:inherit;}.e_editor ul{margin:-10px 0 20px;}.e_editor li{padding:5px 0;}.e_table{width:96%;border-collapse:collapse;empty-cells:show;}.e_table th,.e_table td{padding:5px;border:2px solid #eee;}.e_img{padding:10px 0;text-align:center;}.e_p{line-height:20px;padding:0 0 20px;text-indent:0em;}</style> <div class="e_editor"> <div class="e_p"> Hi everyone, </div> <div class="e_p"> this is my first post even though I have been around for a long time. I decided to jump on the valve building train and build a stereo version of Fred Nachbaur's MiniBlok II. </div> <div class="e_p"> I have been reading about designing and constructing valve circuits but it is not clear to me what type of resistors and capacitors to use. </div> <div class="e_p"> My understanding so far is: </div> <div class="e_p"> metal film resistors are the ones with the least hum/noise. </div> <div class="e_p"> use electrolytic capacitors for the power supply and cathode bypass capacitors. Are there some particular kind/brand/characteristics of electrolytic caps I should look for? </div> <div class="e_p"> use some other kind (polypropylene?) for coupling capasitors, etc. </div> <div class="e_p"> I would really appreciate it if someone could explain to me in plain english what I should use and when/where. </div> </div>