[Collins] Help ID Filter Please?

[Les Zwiebel WB6ORZ]

    Thanks, Jerry!
    (((((73)))))
    Les
    ---===WB6ORZ===---


  ----- Original Message ----- 
  From: Dr. Gerald N. Johnson 
  To: collins at mailman.qth.net 
  Sent: Thursday, April 29, 2010 9:06 AM
  Subject: Re: [Collins] Help ID Filter Please?


  In my copy of the filter list (downloaded from WA3KAY) the 526-9365- is 
  a F455Z-5, in a Y case. In the old days the dash numbers were 
  insigificant, most time indication the paper size for the drawing. Long 
  about 1963 or 4, they began issuing specifications with one part number 
  for the part and with the dash numbers being individual variations, like 
  1% metal film resistors that my project helped pay for to get all the 1% 
  standard values into the Collins part number system.

  The F455Z-5 was used in the 32MS-1A and the 32RS-1C/1H according to that 
  web page.

  The web page from VK3KCM called filter.htm says:

  > 455   F455Z-5     526-9365-00  lower     2.7 @ 3 dB    Y (long)
  > 455   F455Z-5     526-9365-011 lower     2.7 @ 3 dB    F
  > 455   F455Z-5     526-9365-021 lower     3.4 @ 3 dB    Y (long)
  > 455   F455Z-5     526-9365-031 lower     3.1 @ 3 dB    Y (long)
  >
  > 455   F455Z-5     526-9365-041 lower     2.7 @ 3 dB    E

  The last column is case. The Y case is 7/16" diameter, and I don't find 
  a definition of long. E and F cases are the big cases used in the 51J-4.

  Rockwell Collins doesn't admit knowing the 526-9365-041 or -051 part on 
  line but does admit making the disk type filter to some of the 2000 
  designs previously designed.

  Don't forget that Collins mechanical filters were sold as a component to 
  many other manufacturers, they weren't used only in Collins equipment.

  The DLA900-84-M-KB20 label is not Collins style. The FSCM is probably 
  Federal Stock Component Manufacturer.

  On 4/28/2010 11:13 PM, Les Zwiebel WB6ORZ wrote:
  >      In what rig would this have originally lived? I must be missing something in my docs here.
  >          Rockwell Collins (blue label) "Filter, Band Pass." Cylindrical "pencil style" approx 2-3" long w/ solder lugs on the ends.
  >          "DLA900-84-M-KB20
  >          12/84
  >          FSCM No. (what's that?) 2X491
  >          P/N 526-9365-051 Filter Type LSB Carrier Freq. (kHz) 455 Min. Bandwidth 3 kHz @ 6 dB Max Stop Bandwidth (kHz) 6 @ 60dB"
  >          Cylindrical pencil style approx 2-3" long w/ solder lugs on the ends.
  >      Thanks in advance.
  >      (((((73)))))
  >      Les
  >      ---===WB6ORZ===---
  >

  73, Jerry, Technical Adviser to the Collins Radio Association.
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