[R-390] Coffee Table

[Steve Hobensack]

  Ever hear of a Zenith Chairside (coffee/end table)? I was inspired by the 
Zenith Chairside to build something similar, but using an R-390a. Instead of 
bickering with the xyl about what's on tv, I sit with headphones and tune in 
and tune out!
...Steve...N8YE

Message: 9
Date: Tue, 13 Jun 2006 18:28:42 -0700 (PDT)
From: Masters Andy <nu5o at yahoo.com>
Subject: [R-390] Coffee Table
To: R-390 at mailman.qth.net
Message-ID: <20060614012842.28224.qmail at web32806.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

Is this actually a real EAC R-390A receiver in the
pictures?? My EAC does not have any 807's at all.? I
would like to know exactly what the function of this
807 is in this unit. Is this mod documented anywhere?
Does? anyone have any idea what the mutual
transconductance of this tube is with respect to its
function as depicted??

It would appear that it must be used as some type of
noise filter and that its regular use might make the
sound of the R-390A more mellow.

Just curious


Dutch Masters NU5O/P29AM/7Q7AM