[R-390] What's in the window?

[Bill Hawkins]

Barry,

Looking at the parts, I'd say it was an audio amplifier.
Don't know why the speaker wire is shielded, though.

The last picture is equally enigmatic, but it contains a
speaker. No telling what the tube on the componentless
board would be.

Perhaps the oval shaped opening in the third picture is
the back of the black speaker in the last picture.

Why not ask the seller? He was a regular on this list.

Bill Hawkins 

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Barry
Sent: Thursday, November 18, 2010 10:19 AM
To: r-390 at mailman.qth.net
Subject: [R-390] What's in the window?

http://cgi.ebay.com/Late-model-EAC-Collins-R-390A-R390A-R-390-/280589662946?
pt=LH_DefaultDomain_0&hash=item4154727ae2

- or -

eBay item 280589662946

Does anyone know what's being shown in the third picture?

Barry - N4BUQ