[BC] processing way back when

[Jim Tonne]

> Nope: the SA-38 was the deluxe model; it had a big VU meter with a gain
> reduction scale and a VU range attenuator; the early SA-39  in the cast
> aluminum chassis had a small meter and the later version in the sheet 
> metal
> chassis had a large GR meter

The one and only SA-38 I saw, in 1951, had a small meter.
I had forgotten about the SA-39 having both a cast front panel
(early ones) and sheet-metal (later).  Thanks for the correction.

- JimT