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

[Shoppa, Tim]

I've seen that board before, it's an "improved fidelity" audio output circuit with 8 ohm output.

But I can't remember who was selling it. I do remember seeing it before in someone else's 390A and trying to figure out if it taps the diode load before the limiter, or after the limiter, or what.

N3QE

-----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 11:19 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

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