[Vintage-Radio] Freed-Eisemann NR-7

[AI2Q]

Hi Larry:

Your set is a nifty receiver, using an early form of neutralization. If you 
look carefully, you'll see tiny capacitors formed with wire surrounded by 
tiny strips of tubing. It was an excellent patented design.

You should be able to trace the circuit and draw a schematic. I power my 
NR-7 from a homebrew power supply that uses a string of Zener diodes to get 
the B+, along with some 3-terminal regulators for filament and C-.  Be kind 
to the tubes. They don't like excessive filament voltage. Don't ask me how I 
know that!

Vy 73, AI2Q, Alex
ARRL, FOC 1861, QRP-L 687, AWA
http://users.adelphia.net/~alexmm/ai2q.htm


----- Original Message ----- 
From: "Larry WA9VRH" <wa9vrh at dishmail.net>
To: "Vintage_Radio ref" <Vintage-Radio at mailman.qth.net>
Sent: Saturday, December 29, 2007 8:10 PM
Subject: [Vintage-Radio] Freed-Eisemann NR-7


** VINTAGE RADIO REFLECTOR - Please do NOT crosspost when posting to 
VINTAGE-RADIO. **

Hi all,

A Freed-Eisemann NR-7 followed me home today. Got a schematic from
Nostalgia-air  but the tube layout doesn't match.

Does anyone have any information  on this reciever. Nice looking with a
bakelight panel and it looks like a Mahogany cabinet.

Thanks!

Larry WA9VRH

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