Need BA-330 Schematic for modification

[J M Fahey]

Just curious, how did you measure that 6A consumption @ 48V supply if you don't have the batteries yet?

[sma1033]

I used four 12.7 Volt lead acid car batteries connected in series(50.8V) with hand made LDO regulator(PMOS IRF4905 + OP Amp LM324) to power my TAS5630 Class-D Amp Board.

I have to build these test equipment by myself since high power power supply is a bit expansive.

It takes little effort to build my test circuit but everything seems works fine.

[sma1033]

Sure, happy to share more pictures with you guys.

I will post more modification pictures once I get all of the materials I need.

Still waiting for my battery now.

[sma1033]

Just got my batteries this afternoon

can't wait to test them.

[J M Fahey]

I thought I'd never see this again: Mike Matthew's 40 battery powered Freedom Amp (1971):


I guess I was wrong

[g1]

So packs of 8 paralleled batteries, and 12 of those 8 packs in series?

[sma1033]

Yes, 8 x 12 = 96 Batteries total.