PSN-L Email List Message

Subject: Re: Lehman Sensor Parts for Sale
From: ChrisAtUpw@.......
Date: Sat, 5 Aug 2006 05:08:16 EDT


In a message dated 04/08/06, jr_brady@........... writes:

> I'm offering the following parts for sale to the group.  They were used in
> the construction of a Lehman sensor. 
> Thank you,
> Jason Brady   Lynnwood, WA USA
> jr_brady (at) comcast (dot) net

Hi Jason,

       If you would specify the sizes / quantities outlined below as queries, 
it would be a great help, please. Otherwise we don't know what you are trying 
to sell! 

       There are maybe a dozen sizes of 'Alnico Horseshoe Magnets' - there 
should be a type number on the original order, if not on the magnet.

       What were you using brass ball bearings for? Stainless steel is 
usually used.

       Regards,

       Chris Chapman

> 
> (1) PSN-ADC-EQAMP Four-channel Seismic Amplifier/Filter Board

       How many amplifiers are there on the board?

> (1) PSN-ADC-SERIAL 16-Bit Serial Output Analog to Digital Converter Board
> Note:  Boards mounted together in aluminum enclosure.  Slightly used, fully
>        operational, excellent condition.

       Does it have a cable for connecting it to a computer?

> (1) Full spool of 36 ga magnet wire

       What weight on the spool? They come in many sizes.

> (2) Partial spools of 34 ga magnet wire

       What weight?

> (2) Hand-made coils (using 34 ga wire from partial spools)
> (3) Alnico horse shoe magnets

       How many and what sizes?

> (2) 7-1/2" Turnbuckles

       How many?

> (2) Line levels

       How many?

> (1) Guitar string, steel

       What wire diameter / music application?

> (5) 4" x 4" copper sheets, varying thicknesses

       How many and what thicknesses?

> (1) 3" x 6" copper sheet, 1/4" thick
> (1) Pkg of 10 brass ball bearing, 1/4", grade 200
> (1) Pkg of 50 brass machine screw, pan head, 10-32 thread, 1-1/2" length
> (1) Pkg of 100 brass flat washer, 10-S
> (1) Pkg of 100 brass hex machine nut, 10-32 thread
> (1) Pkg of 50 brass hex machine nut, 3/18-16 thread
> (1) Pkg of 50 brass flat washer, 24-S
> (1) Pkg of 100 brass hex machine screw, pan head, 8-32 thread, 1-1/2" length
> (1) Pkg of 100 brass hex machine screw, pan head, 8-32 thread, 1" length
> (1) Pkg of 100 brass hex machine screw, pan head, 8-32 thread, 3/4" length
> (1) Pkg of 100 brass hex machine nut, 8-32 thread
> (1) Pkg of 100 brass flat washer, 8-S

In a me=
ssage dated 04/08/06, jr_brady@........... writes:

I'm offering the following part= s for sale to the group.  They were used in
the construction of a Lehman sensor.
Thank you,
Jason Brady   Lynnwood, WA USA
jr_brady (at) comcast (dot) net


Hi Jason,

       If you would specify the sizes / quanti= ties outlined below as queries, it would be a great help, please. Otherwise=20= we don't know what you are trying to sell!

       There are maybe a dozen sizes of 'Alnic= o Horseshoe Magnets' - there should be a type number on the original order,=20= if not on the magnet.

       What were you using brass ball bearings= for? Stainless steel is usually used.

       Regards,

       Chris Chapman



(1) PSN-ADC-EQAMP Four-channel Seismic Amplifier/Filter Board


       How many amplifiers are there on the b= oard?

(1) PSN-ADC-SERIAL 16-Bit Seria= l Output Analog to Digital Converter Board
Note:  Boards mounted together in aluminum enclosure.  Slightly us= ed, fully
       operational, excellent condition.

       Does it have a cable for connecting it= to a computer?

(1) Full spool of 36 ga magnet=20= wire


       What weight on the spool? They come in= many sizes.

(2) Partial spools of 34 ga mag= net wire


       What weight?

(2) Hand-made coils (using 34 g= a wire from partial spools)
(3) Alnico horse shoe magnets


       How many and what sizes?

(2) 7-1/2" Turnbuckles

       How many?

(2) Line levels

       How many?

(1) Guitar string, steel=

       What wire diameter / music application= ?

(5) 4" x 4" copper sheets, vary= ing thicknesses


       How many and what thicknesses?<= FONT COLOR=3D"#000000" BACK=3D"#ffffff" style=3D"BACKGROUND-COLOR: #ffffff"= SIZE=3D2 PTSIZE=3D10 FAMILY=3D"SANSSERIF" FACE=3D"Arial" LANG=3D"0">

(1) 3" x 6" copper sheet, 1/4"=20= thick
(1) Pkg of 10 brass ball bearing, 1/4", grade 200
(1) Pkg of 50 brass machine screw, pan head, 10-32 thread, 1-1/2" length
(1) Pkg of 100 brass flat washer, 10-S
(1) Pkg of 100 brass hex machine nut, 10-32 thread
(1) Pkg of 50 brass hex machine nut, 3/18-16 thread
(1) Pkg of 50 brass flat washer, 24-S
(1) Pkg of 100 brass hex machine screw, pan head, 8-32 thread, 1-1/2" length=
(1) Pkg of 100 brass hex machine screw, pan head, 8-32 thread, 1" length
(1) Pkg of 100 brass hex machine screw, pan head, 8-32 thread, 3/4" length (1) Pkg of 100 brass hex machine nut, 8-32 thread
(1) Pkg of 100 brass flat washer, 8-S



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