Re: Mosrite Model 450 Bass Head Restoration
Posted: Tue Mar 21, 2017 9:25 am
As you already know, take tons of well lit photos before disassembly detailing what connects to what, so that you have a reference to how to put it all back together.
There are two major sections to this restoration, one is purely mechanical and the second is all electronic. To do this right, you will need to tear this down to the sub-assembly level by removing all of the electronics from the chassis and then cleaning, refurbishing, rebuilding, refinishing, etc. all of the parts and then reassembling back into an amp.
The photos show damage from the fire itself and damage from the water used to put out the fire. As far as the electronics go, you have to hope that the chassis was left to completely dry out before it was plugged in and turned on. If it wasn't, then there could be all sorts of damaged done from the wet circuits being powered up. Water makes a really good conductor.
Unfortunately a lot of the electronics repairs can only be done after all of the sections are connected together back inside the chassis. Be certain to change the ac power cord to a 3-wire grounded cord and remove the ground switch capacitor.
There are two major sections to this restoration, one is purely mechanical and the second is all electronic. To do this right, you will need to tear this down to the sub-assembly level by removing all of the electronics from the chassis and then cleaning, refurbishing, rebuilding, refinishing, etc. all of the parts and then reassembling back into an amp.
The photos show damage from the fire itself and damage from the water used to put out the fire. As far as the electronics go, you have to hope that the chassis was left to completely dry out before it was plugged in and turned on. If it wasn't, then there could be all sorts of damaged done from the wet circuits being powered up. Water makes a really good conductor.
Unfortunately a lot of the electronics repairs can only be done after all of the sections are connected together back inside the chassis. Be certain to change the ac power cord to a 3-wire grounded cord and remove the ground switch capacitor.