[NJARC] Wallace Receiver

[Somers Jr, Kenneth]

Hi Al,

There was one thing that I forgot to say, the 
chopper that I am looking for is a 7 pin type 
with 2 large pins and 5 smaller ones in a circle.
And that the unit does vibrate just no output. 
I Proved this by taking a known good chopper and 
putting it in the unit, the Instrument came to 
life and was correctly calibrated and I put 
the chopper in question in the good unit and 
the good unit did not function!

I will try it your suggestion and apply the 
120 volts and light bulb across the chopper 
inputs. I have also opened the can on other
chopper and found a broken wires which I 
was able to fix.


Thank You:
 
Kenneth J Somers Jr.
Senior Test Engineer
Maplewood Testing Lab
Maplewood, New Jersey   07040
  1-973-761-1820
-----Original Message-----
From: njarc-bounces at mailman.qth.net [mailto:njarc-bounces at mailman.qth.net] On Behalf Of Al Klase
Sent: Monday, October 10, 2011 10:48 AM
To: njarc at mailman.qth.net
Subject: Re: [NJARC] Wallace Receiver

Just remember 
Reply = Poster
Reply All = Everyone

_________________________________________________________
Sandy,

You may well be able to wake up the vibrator you have.  Read this:
http://www.skywaves.ar88.net/commrx/Maintenance/Waking%20Up.doc.pdf

Al

On 10/10/2011 10:36 AM, Somers Jr, Kenneth wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
> Good morning all:
>
> I have not seen this posted and I was wondering if anyone has
> ever looked for or needed a six-volt DC chopper or 'vibrator'.
> I am trying to restore a 'VIBROGROUND' mod 293 A low ohms soil
> resistance instrument made by Associated Research Inc. --
> AR "made" its own vibrators by relabeling someone else's.
> So I am thinking that they may have used a Delco Radio chopper
> or some other brand and relabeled them.
> MY QUESTION IS, Does anyone have an address for a company that may
> still have a supply of this item, or the transistorized version
> that replaced the mechanical chopper.
> In replying to this question please use chopper as emails with
> the other word may not get through the Companies firewall.
> I am not sure if this email will get out through it?
>
> Thank You:
> 73's  Sandy  WA2JVK
>
> Kenneth J Somers Jr.
> Senior Test Engineer
> Maplewood Testing Lab
> Maplewood, New Jersey   07040
>    1-973-761-1820
> _________________________________________________________
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/


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