some progress on the modular preamp. The LCR unit is finished.
Wiring was quickly done. The back panel just has two pairs of RCA jacks for input and output and a binding post for grounding the chassis if needed.
In the meantime the missing material for the phono input stage has arrived and the phonostage will be completed soon. The next installment of this series of articles will show the entire phonostage. Two versions of linestages are planned in a similar chassis style. One with directly heated triodes which will have the tubes visible and another one with indirectly heated tubes which will use enclosed chassis like the phonostage.