UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Attenuators

G0HZU_JMR · 2nd Dec 2017, 12:17 pm

It looks like a classic inline (insertable) 50R attenuator to me. So the input impedance will be 50R if used as intended (i.e. inserted inline) in a 50R system. It has been built using E12 values so it will not be exactly 50R but close enough for most applications I think? It would be fine for use inline for attenuating a signal from a 50R sig gen that will be fed to a 50R receiver or spectrum analyser for example. Do you interpret some other role for it?

2nd Dec 2017, 12:17 pm	#28
G0HZU_JMR Dekatron Join Date: Sep 2010 Location: Cheltenham, Gloucestershire, UK. Posts: 3,077	Re: Attenuators - theory and the design of. It looks like a classic inline (insertable) 50R attenuator to me. So the input impedance will be 50R if used as intended (i.e. inserted inline) in a 50R system. It has been built using E12 values so it will not be exactly 50R but close enough for most applications I think? It would be fine for use inline for attenuating a signal from a 50R sig gen that will be fed to a 50R receiver or spectrum analyser for example. Do you interpret some other role for it? __________________ Regards, Jeremy G0HZU Last edited by G0HZU_JMR; 2nd Dec 2017 at 12:32 pm.