[R-390] OT: Humbug transformer

[LEE BAHR]

This doesn't sound like a transformer for a R-390 to me  I think it's a 
plain transformer.  Have no idea how big it is.

Lee, w0vt




I've been working on a low-voltage power supply for a while now and am
> getting to the final assembly stages.
>
> When I bought the transformer for the project, I noticed it had a bit of
> 60-cycle vibration (hum).  I wanted to avoid the cabinet from becoming a
> sounding board for the hum so I isolated the transformer on a series of
> neoprene cushions (sink washers) to both provide a little shock mouting
> and to minimize the contact area the transformer mounts make with the
> cabinet.  The cabinet, by the way, is constructed from solid 3/4" red oak