Bo Deadly
Well-known member
It would be very helpful if I had a precision attenuator for measuring gain, looking at frequency response, etc.
I'm thinking of something like 10K input impedance, 150 ohms output impedance and selectable attenuation from 0 to -80dB with 1dB resolution.
What is the standard circuit for this?
A sequence of "T" attenuators switched using toggles? Like 40+20+10+5+3+2+1 using 7 toggles?
I'm thinking of something like 10K input impedance, 150 ohms output impedance and selectable attenuation from 0 to -80dB with 1dB resolution.
What is the standard circuit for this?
A sequence of "T" attenuators switched using toggles? Like 40+20+10+5+3+2+1 using 7 toggles?