R15 R16 and R22 R23 can go too?
also Current sense resistors can go? how does the lm723 count the amps if current sense resistors are not present?
my meter is an analog minipa ms-52 0-3 ADC, i dont know if it has a shunt inside.
it has just a +/- plug at the back of the meter ,you have to respect the polarity or the needle goes the other side.
i think all analog meters have a shunt inside and they are "millivoltmeters"?
can you guess the value of C8? should i keep this capacitor if all meters are gone?
ZD1 ZD2 and D1 D2 are mandatory?
sorry to bother you and thank you for the reply!
i would like to make it without the range adjust.
maybe s1s2 and leds could stay just to have a "low voltage low current mode"
i am going to use analog meters ,a volt meter and an ammeter i already have (0-30v , 0-3 a).
but i cant decide which resistors are for the voltage/current sense and which for the range adjust , so i might harm the circuit.
can you tell me which resistors can go?
my guess:
R17 R18 R19 R20 and M2 can go and an analog ammeter can be used in series with the output
R24 R25 R26 R27 and M1 can go too and a standard voltmeter can go to the output.
OK . First you need to know if your ammeter is internally shunted some are not and require an external shunt to operate . If it has an internal shunt then yes you just put it in series with the output between D3 and L1 . Omit R15 through R20 , R10 and 11 (Shunt resistors) , and S3a switch . If your meter requires a shunt , place shunt in place of R10 and R11 and connect your meter to the shunt accordingly . Voltage meter is installed parallel to out put and omit R22 through R27 and S2a switch.