For good shielding reason I put shielding net on rack.
Therefor Alumni plate will contact shielding net well.
Install crossover switch module.
Drill hole for well proper layout of amplifier.
Connect relay DC control wire for crossover switch module.
Set 12V transformer for relay DC control usage.
Mount 4 transformers. 5U4G heater transformer ,chock, 6.3V transformer, crossover transformer.
Finish AC main power switch circuit (include a AC delay-on relay).
Finish AC power and Tube heater circuit prepare for turn-on test.
Real test and check each point voltage.
Finish connect wire of crossover switch module and make a test of mode switch.
This weekend the last schedule.