On 1/18/21 11:07 AM, Juan via groups.io wrote:
Yo tengo una de esas te mando una foto para que veas los resistores.
Saludos.
That makes it muy facil -
10dB 100 ohm shunt, 33+39 ohm series, 100 ohm shunt
20dB 100 ohm shunt 68 ohms series, 51 ohms shunt, 75 ohms series, 100 ohms? shunt
30dB 56 ohm shunt, 270 ohm series, 390 ohm shunt, 270 ohm series, 56 ohm shunt
10 dB checks:
rl=1/(1/100+1/50)
rs = 33+39
rin = 1/(1/100 + 1/(rs+rl))
rin
51.2987012987013
v = rl/(rs+rl)
v
0.31645569620253167
import math
dB= 20*math.log10(v)
dB
-9.993741652368076
