If there is only one place to measure the current then the bias adjustments surely need to be done sequentially. For the Kenwood TS-590 the procedure is to set all the bias pots to zero then measure the baseline current. Then increase pot 1 until x mA added to baseline, then increase pot 2 until y mA is added to the new current, then increase pot 3 until z mA added to total current. The final current on its own tells you nothing about how the current is divided between the devices in the final amplifier.
Of course the procedure is not worth anything without knowing what each current increment should be and Kenwood changed their mind about the values after first delivery. 73, Andy k3wyc ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
