[Boatanchors] RCA WR50B

[Mack Rogers]

Oops! Looked at the schematic on BAMA again. It's an NE-2 with a 100K resistor.

N4VGB
Mack Rogers



--- On Tue, 1/4/11, Jim Wiley <jwiley at alaska.net> wrote:

> From: Jim Wiley <jwiley at alaska.net>
> Subject: Re: [Boatanchors] RCA WR50B
> To: "LARRY D GODEK" <telegrapher at q.com>
> Cc: boatanchors at mailman.qth.net
> Date: Tuesday, January 4, 2011, 8:28 PM
> If the bulb fits in a socket and is
> about the size of a #47 (#44, #49, 
> #1850, etc) lamp. it is a NE51.  If it is about 1/4"
> in diameter, and 
> has a pointed bulb with wire leads (no socket), it is a
> NE2.  If it is 
> about 1/2" in diameter, fits in a socket, and had "D"
> shaped electrodes, 
> it is probably a NE-48.  All of these are designed for
> 120V service, 
> connected directly across the line  while using a
> series resistor in the 
> 47k to 150K range.  Don't forget the resistor - the
> lamp will draw way 
> too much current and likely explode if the resistor is
> omitted.  If it 
> isn't one of these, let me know and I will look up some
> other 
> possibilities.
> 
> 
> - Jim, KL7CC
> 
> 
> LARRY D GODEK wrote:
> > I picked up an RCA WR 50B signal generator which
> appears to be pretty nice.  The neon bulb in the front
> panel didn't light when the power was applied.  In
> looking at it internally i see that it has 99 v across it
> but one lead right at the glass envelope was broken. 
> It looks like a small xmas tree light.  No manual and i
> can't read any markings on it.  Anyone know what type
> neon-lamp it might be.  Tuning is noce and smooth
> anyway.  Haven't tried it to see what kind of signal it
> puts out but it also has a "sweep" capability as well. 
> Down in the lower right corner there is an RCA (why not)
> jack for external mod.  Small package.  Anyone
> have a manual for it also?
> >  
> > Larry
> > W0OGH
> >     
>         
>           
>   
> >
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