EEVblog #575 - DIY 1970s Spectrum Analyser

Phil VK2BDF from the Manly Warringah HAM Radio Society shows off his 1970’s vintage home made 200MHz DIY spectrum analyser. Forum: EEVblog Main Web Site: EEVblog Amazon Store: Donations: Projects: Electronics Info Wiki: Теги: spectrum analyser,diy,schematic,how it works,noise foor,ham radio,1970s,1980s,dead bug,construction,pcb,shielding,double balanced mixer