Mechanical Filters For Sale

Mechanical Filters, Ceramic Filters, Crystals

Collins Mechnical filters for sale:

500 kHz Filters

			  -3/6 db  -60 db   CASE       PRICE
SUPER CW FILTER    No Label   F501V-05F AM??
                           500.8-501.2 @ 6  V          $  75
525-9588-010   F500Y08  AM   0.70 @-3  3.60 Y w/flange    75
526-9421-000   F500Y70  AM   7.0    19.0    Y w/flange    35
526-9378-00    F500Y60  AM   6.0    13.2    Y             45
526-9319-00    F500F60  AM   6.0    12.9    E   ARR-41    40
    This filter has been opened and coil replaced to repair

PRC-47 filters - for conversion to LSB for 80 and 40 meters 
526-9377-00    F500Z4   USB  2.7    5.80    Y             45
               Available filter curves [1] [2] [4] 
No Label       F500Z4? same curve shape, insersion loss, loading C 
               Available filter curves [1]                40
526-9376-010   F500Z5   LSB  2.7    5.80   Y PRC-47 Stock 35
526-9412-000   F500Z6   USB  2.7     6.5    Y             35
526-9572-001   F500Z6A  USB  2.7                          35
526-9420-00    F500Z10  USB  3.2     6.0    Y w/flange    40  
526-9410-00    F500Z11  LSB  3.2     6.0    Y w/flange    45
526-9997-010   No data - measures as 3.5 KHz USB Y/flange 35
526-9998-010   No data - measures as 3.5 KHz LSB Y/flange 35
    No Label USB                            Y             20
    No Label LSB                            Y             20
    No Label USB F500Z-22C???               V             50

455 kHz Filters


526-8676-010  Torsion Bar AM  0.60    1.50  LP            75
526-8477-100              AM  0.66    1.83   V            75
526-9308-00    F455Q-1    AM  1.0     1.77   V-tall       40
526-9343-00    F455Y160   AM 16      27.5    Y            35
526-8415-010             USB  3.4     6.5    V            40
526-9897-010             USB  2@-3    5.5     
                slightly larger than FA case              35
526-9605-010   F455Z16   USB  2.3     5.0   FA            35
526-9724-010   F455Z32F  USB  2.35    4.3   FA            45
526-9665-010   F455Z-23C USB  3.1     4.1    V            75
No Label       F455Z-23C? USB 3.1     4.1    V            65
526-9892-010   R366348-1 USB  3.3            V            45
No Label       20 kohm Z USB  3.1     5.4    Y            35
526-9969-020   92062-12   AM  1.0     3.9    V
               Opened and repaired                        40

R-390A 455 kHz Filters


Dittmore-Freimuth  2 kHz  AM  2.14    4.89   N            45
Motorola  4 kHz           AM  3.89    6.74   N            45
   Label missing, one terminal broken on end but usable
Motorola   8 kHz          AM  9.43   16.84   N            45
Motorola   16 kHz         AM 15.01   24.07   N            40
Motorola   16 kHz         AM 15.86   24.07   N            40
   Slight corrosion on case.
   

450 kHz filters - Collins 651S1 851S1 HF 8054 HF-2050 RT-1016 ARC-153

AM

526 9643 010   F450V60F  AM  6.00   23      V             60
  Coil repaired by cutting end from case - resealed with
  electronic grade RTV.
526 9643 030   F450V60F  AM  6.75   23      V             75
  Coil repaired by unsoldering terminal and fixing wire
  to transducer coil.
526-8698-010  450 kHz center ~9 kHz Torsion Bar filter    40

USB

526 9831 010   F452FD19F     2.0@3   5.4   FD             60
526 9634 010   F450Z1C  USB  2.7@2   4.4    V             60
               Available filter curves [1] [2]
526 9678 020   F450Z3C  USB  3.1@3   4.75   V             50
Filters without labels                      V             50
               Available filter curves [1] [3] [4] [6]

LSB

Filters without labels                      V             50
               Available filter curves [2] [5] [8]

Misc:


526-9310-00   F455Q3  435-478 kHz                      $ 10
526-9304-00   F308U03      AM  0.30  16.00  U            10
526-9751-00   F462FD130F  No Label  447-462 kHz  FD      10  
526-9311-00   F300Z-5     LSB  2.65   5.20  U  786H-1    10
526-9099-00   F250A-67     AM  6.7   13.4   C            10
526-9012-00   F250A-20     AM  2.0    4.3   C            10

Non Collins filters:



Crystal Filters:


40.455 MHz Center Freq  20 kHz wide                      $ 40
40.455 MHz Center Freq  40 kHz wide                      $ 30

Ceramic Filters:


Murata   CFR455H  6 KhZ@ -6, 15 kHz @ -60             $ 17.50
Murata   CFS455C 26 KhZ@ -6, 46 kHz @ -70             $ 12.50

NTKK LF-D6 6 KhZ filters can be purchased from
Mike Maghakian mmaghakian@scc.spokane.edu. Contact him
for current price and availability.

BFO Crystals and Oscillators:


455.000 kHz crystals HC-6/U                             $ 10
Assembled and Tested 455 kHz BFO 1.5" x 1.8"            $ 35

BFO/Xtal oscillator parts kit without crystal           $ 10
 printed circuit board and components

Crystals HC-6/U
45.500  MHz (overtone?)    $1

Crystals  HC-49/U
 2.4576 MHz              2/$1
 2.500  MHz              2/$1
 4.725  MHz              2/$1
 5.360  MHz              2/$1
 8.000  MHz              2/$1
10.000  MHz              2/$1
11.000  MHz              2/$1
11.0592 MHz              4/$1
12.000  MHz              2/$1
20.000  MHz              4/$1
22.000  MHz              2/$1
21.333  MHz              2/$1
61.855  MHz (overtone?)  2/$1
70.333  MHz (overtone?)  2/$1

Crystals  HC-49/S  (Short case HC-49)
 4.915  MHz              2/$1
12.000  MHz              4/$1

Crystals  HC-49/US SMD  (Short case HC-49 Surface Mount)
 5.000  MHz              2/$1
10.000  MHz              2/$1
12.000  MHz              2/$1
16.000  MHz              2/$1

Crystals  Case smaller than HC-49
 4.9152 MHz              6/$1

Mechanical Filter info

Collins Case size guide: not including terminals
Y  cylinder  2.23" long .45" diameter terminals at each end, metal
V  rectangle 2.73" long .5" wide .6" tall terminals each end
   of bottom,  metal
FA rectangle 2.53" long .56" wide .6" tall terminals each end
   of bottom,  plastic case
E  rectangle 2 13/16" long 15/16" wide 1" tall terminals each
    end of bottom, metal
K  cylinder 3" long, .775" diameter terminals at each end, metal
   with flange for R-390A

Note AM indicates only that the filters are centered on the
listed IF frequency - they might be suitable bandwidth for
CW or digital modes rather than voice Amplititude Modulation.
USB and LSB filters are offset about 1.5 kHz above or below
the IF freq and normally would have a 500 kHz or 455 kHz xtal
controlled BFO. USB or LSB would be selected by changing
filters. More expensive to use two filters instead of one, but 
these are mostly for military radios, after all. Cost is of 
little concern.

Terms:


Filters guaranteed to be functional, but may NOT meet all
Collins specifications. I will replace or refund for any
filter not satisfactory, provided the coils are not opened.
Data sheet copies or information will be provided on request, 
where available.

For orders within the US of A, add $5.00 per order to the 
above prices for postage and insurance. Shipment by priority mail. Other 
countries by arrangement. Personal checks, money orders, or
PayPal accepted. 

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Copyright © 2003,2004 John Kolb Last revised July 10, 2005