Meredith, Dick, Chris and others
You mentioned and I have seen pictures of 201 vertical seismometers with =
a wire inserted in the back top adjustment mechanism.  However, I =
suppose mine is a little weird in that my upper spring adjustment screw =
has at the top a tension adjustment nut and a locking nut but at the =
screws lower end (without threads) an opening to directly accept the =
straight and flatten 1" piece of the spring.  There are two allen type =
screws to tighten the spring extension in this opening.  At the bottom =
end of the spring there is an approximately 2 1/2" straight  and =
flattened piece of the spring that is inserted into the lead mass =
assembly secured with two allen type screws.  I am going to be looking =
for feeler guages tomorrow to replace the wires that are currently being =
used as hinges as discussed in you guys previous threads.  However, I =
was wondering if any of you have the above described unconventional =
upper spring attachment like mine.  Also, doew anyone have a picture of =
the hinge metal used since the exploded view in the Sprengnether manual =
does not really show it clearly.
James Allen
James Allen
  ----- Original Message -----=20
  From: meredith lamb=20
  To: psn-l@.................
  Sent: Thursday, August 21, 2008 9:39 PM
  Subject: Re: SPRENGNETHER 201 LONG PERIOD VERTICAL SEISMOMETER


  James,

  You're welcome. You might also sometime check the 0.025" piano wire =
condition on either side/end of the main spring.  Check that there is
  ~ a length (~3-6") of that wire coming out of the back top adjustment. =
 Bigger hobby shops often carry such; and some of the more stocked Ace =
Hardware stores "might" also; its very cheap.  With most sizes of about =
everything switching to metric sizes....who knows if it will be
  available afew years down the road....the upper wire compression screw =
adjustments are made for that size.

  Take care, Meredith



  =20
  On Thu, Aug 21, 2008 at 8:39 PM, JAMES ALLEN  =
wrote:

    Thanks a million Meredith.  I will buy a couple of them this weekend =
and give it a try.  BTW, the thread between You, Dick and Chris was =
extremely helpful in causing me to rethink my situation involving my =
vertical.  I had just assumed that it was all stock until I read you =
guys exchanges.  I am much appreciative to all of you.
    James Allen








Meredith, Dick, Chris and =
others
You mentioned and I have seen pictures =
of 201=20
vertical seismometers with a wire inserted in the back top adjustment=20
mechanism.  However, I suppose mine is a little weird in that my =
upper=20
spring adjustment screw has at the top a tension adjustment nut and =
a=20
locking nut but at the screws lower end (without threads) an =
opening to=20
directly accept the straight and flatten 1" piece of the spring.  =
There are=20
two allen type screws to tighten the spring extension in this=20
opening.  At the bottom end of the spring there is an =
approximately 2=20
1/2" straight  and flattened piece of the spring that is inserted=20
into the lead mass assembly secured with two allen type =
screws. =20
I am going to be looking for feeler guages tomorrow to replace the wires =
that=20
are currently being used as hinges as discussed in you guys previous=20
threads.  However, I was wondering if any of you have the above =
described=20
unconventional upper spring attachment like mine.  Also, doew =
anyone have a=20
picture of the hinge metal used since the exploded view in the =
Sprengnether=20
manual does not really show it clearly.
James Allen
James Allen

  
----- Original Message ----- 
  From:=20
  meredith lamb 
  
To: psn-l@.............. 
  
Sent: Thursday, August 21, 2008 =
9:39=20
  PM
  
Subject: Re: SPRENGNETHER 201 =
LONG PERIOD=20
  VERTICAL SEISMOMETER
  


  

  
James,
  
 
  
You're welcome. You might also sometime check the 0.025" piano =
wire=20
  condition on either side/end of the main spring.  Check that =
there=20
  is
~ a length (~3-6") of that wire coming out of the back top=20
  adjustment.  Bigger hobby shops often carry such; and some of the =
more=20
  stocked Ace Hardware stores "might" also; its very cheap.  With =
most=20
  sizes of about everything switching to metric sizes....who knows if it =
will=20
  be
available afew years down the road....the upper wire compression =
screw=20
  adjustments are made for that size.

Take care, =
Meredith

  


 
  
On Thu, Aug 21, 2008 at 8:39 PM, JAMES ALLEN =
<jcallen1@...........> wrote:

  

    

    
Thanks a million Meredith.  I =
will buy a=20
    couple of them this weekend and give it a try.  BTW, the thread =
between=20
    You, Dick and Chris was extremely helpful in causing me to rethink =
my=20
    situation involving my vertical.  I had just assumed that it =
was all=20
    stock until I read you guys exchanges.  I am much appreciative =
to all=20
    of you.
    
James=20
  =
Allen

=