I have an Amp supply LA-1000 amplifier. Can anyone tell me what the values of R7, R8, R9 and R10 in the metering circuit are ? I have a schematic for the LA-1000A, don't know if there is a difference, but it does not give any values for any resistors. Only R numbers. By the way the GLA metering circuit is different. Thanks Gary K4FMX