A general BOM to reference has been prepared to aid with the build:
NV73EQ addon general BOM
When parts are out of stock, alternatives will be added to this document that are direct replacements.

On top of the raw DIY kit you buy from here, there are 3 other orders to make.

• Firstly, you can buy the 3 inductors & 3 rotary switches from Audio Maintenance.
Items available here.
(VTB9044, VTB9043, VTB9050, 1x12 grayhill & two of 2x6 grayhill)
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• Secondly, you will need to order all remaining items from Mouser. A Mouser cart has been prepared... NV73EQ addon Mouser Cart
Should come to around £50 (If it doesn't...confirm with the NV73EQ addon general BOM above)
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• Lastly, the knobs can be purchased from don audio.
Items available here:
NV73EQ-addon knobs.
(if you already have the mic pre knobs)
or
NV73EQ knobs.
(if you need the red Marconi & small grey output too)