[BC] processing way back when

[Mark Humphrey]

On 12/19/06, Mark Durenberger <Mark4 at durenberger.com> wrote:
> Bob, the GE you're talking about was actually the second-generation.  The
> first generation used a lattice-network delay followed by an infinite:1
> limiter; 12 db max limiting IIRC.  20+ tubes; powered by a regulated bipolar
> 350 volts or so!
>

A schematic of the BA-5A is posted here; the lattice network is
between the two interstage transformers.  I count 14 tubes, but this
print doesn't show the power supply, which had rectifiers and probably
a VR tube or series regulator:

http://www.waltzingbear.com/Schematics/Misc/GE_BA_5.htm

Mark