Crystals

Thanks to Charles Bliley, K3NAU, for the crystal history and vintage crystal information at www.bliley.net which was very useful while listing many of this page's items. The 1937 General Products Catalog G-9 crystal and holder information, in particular, was useful and Crystal Grinding Without Tears reminded me of reading about this in the 50's and something I've always wanted to try. Other interesting and/or useful pages found while listing these items were: Shifting Crystals, Crystal Grinding, another Crystal Grinding page, Crystal & Crystal Holder Information and another Crystal Holder Information page.

 
HC13 Xtals HC48 Xtals HC51 Xtals HC49 Xtals HC50 Xtals

 

HC-49US, TB-26, TB-38
and other small Crystal
& Ceramic Resonators Misc. Xtals Oscillators Filters

Price of items with no listed cost be < $1 ea. (maybe even FREE) depending on item, quantity & whatever else is purchased.
And prices are often simply a guess as to what an item is worth so don't hesitate to let me know if an item you want to buy is unreasonably priced.

1.0 MHz OCXO
(oven controlled crystal oscillator)
Lavoie Labs Inc.  K00000113
with an insulated enclosure.

115 Volt30W75°C

HUPP − Garlisle PA − 273C is also printed on the unit.

Unable to find a data sheet, I reversed engineered the unit and will supply the schematic with the unit. The oven was tested and works fine, but I have no way to test the crystal. Chances are that it is fine, but if had gone as far as to build up an oscillator circuit to test the crystal I may as well keep and use this item myself.

Qty: 1$30

OVENAIRE OSC 27-48 1.0 MHz Oscillator

Oscillator is part of a DynaQuip 2-234B PCB that provides buffered 1 MHz, 100 KHz and selectable 3200, 3600 or 4000 KHz outputs. 12 VDC. Board connector is included.

 Schematic PDFQty: 2$25 ea.

Crystal Heaters

12 Volt 75°C heaters
with 11 pin plug for
eight HC-50 crystals by
Croven Ltd. Whitby, ON.

Qty: 4 - labelled ISL 5224
Qty: 1 - Model SA2C plus Qty: 1 - Model A5224

by C.R. Snelgrove Co. Toronto ON

6-12 Volt 85°C heaters
with 8 pin plug
for two HC-48 crystals
by C.R. Snelgrove Co.
Toronto ON.
Qty: 1
GE #B5490303P1

12V heaters
with 8 pin plug
for two HC-48 crystals
by Ovenaire, Inc.
Charlottesville, VA.
Qty: 8
Model PC2-54

600 ohm heater
with 8 pin plug for
two HC-48 crystals by
Isotemp Research Inc.
Charlottesville, VA.
Qty: 1
Model 2C6P-16
$5 ea.

 

4-Pin Crystal Heaters

Motorola Type 801
Contherm Crystal Unit

with a 9325 KHz crystal
 & heater.

Qty: 1$10

Motorola Type D-11 Crystal Unit

1 Unit with 5.000 MHz Xtal & 6.8 ohm heater.
Also a second unit with no label no crystal and
a heater that appears to be intermittent.

$10 for both units.

No identification or
crystal, but this unit
has a 4.7 Ω heater &
accepts one HC-48
 style plug-in crystal.

Qty: 1$5



4 Pin Crystal Heater Socket

Qty: 2$2 ea. (when purchased with a heater)

Crystals with 3/32" (.093") dia. pins spaced ≈ 1/2" (.487")

HC-48 Style Crystals

with 3/32" (.093") dia. pins spaced ≈ 1/2" (.487")

(1) x   4400 KHz
(1) x   6437.083 KHz
(1) x   7116.25 KHz
(1) x 11155 KHz

$1 ea.

 

FT-241 Holder Crystals

Size: ≈ 7/16" x 1-1/8" x 1-1/16" tall with 3/32" (.093") dia. pins spaced ≈ 1/2" (.487")

$5 ea.
or
All 8 for $30

"PR" crystal below is 1-1/4" tall.


(2) 870.833 KHz
 Sold
(6) 83.8 MHz

 

FT-243 Holder / CR-6 / Z-2 Type Crystals

Size: ≈ 7/16" x 13/16" x 1-1/8" tall with 3/32" (.093") dia. pins spaced ≈ 1/2" (.487")


(1) x 8050 KHz

(1) x 1706 KHz

(1) x 8025 KHz
(1) x 3825 KHz
(1) x 8090 KHz
(1) x 8640 KHz

(5) x 15.2400		 3 other
vintage
xtals from
different
manufactures

 

 

(1) x 2145 KHz
(1) x 8125 KHz
(1) x 8175 KHz

$5 each − All 14 for $50

Crystals with 1/8" (.125") dia. pins spaced 1/2"

CR-1A/AR & 10X Type Aircraft Crystals

Size: ≈ 7/16" x 1-1/8" x 1-1/4" tall


(1) x 8360 KHz
(1) x 8547.27 KHz
(2) x 8448 KHz
(2) x 8156.47 KHz

$5 each − All 15 for $60

Crystals with 1/8" (.125") dia. pins spaced 3/4"

C2 Type Crystals

≈ 7/16" x 1-1/8" x 1-1/4" high

(8) x 2666 KHz
(1) x 2746 KHz

$5 ea. − 9/$35

 

C2 Type Crystals

Size: ≈ 1/2" x 1-3/16" wide x 1-3/8" high (not including pins)

(1) x 4975 KHz
(1) x 4975 KHz
(1) x 4520 KHz

$5 each  −  10/$40  −  or all 17 for $70

 

C2 Type Crystals

Size: ≈ 9/16" x 1-3/16" wide x 1-3/4" high (not including pins)

Vintage Motorola Crystals
(1) x 8340 KHz
(1) x 8900 KHz

$5 ea.

 

C2 Type Crystals

Size: ≈ 1/2" x 1-3/8" wide x 1-3/8" high (not including pins)


(1) x 4965 KHz

(1) x 2071 KHz
(4) x 4965 KHz
(5) x 4975 KHz



(1) x 4975 KHz

$5 ea.

 

C2 Type / DC-11-A Crystals

Size: ≈ 11/16" x 1-9/16" x 1-3/4" high (not including pins)



(1) x 5562.5 KHz (24) x 1698 KHz

3 of the 1698 KHz crystals are labelled "FR 1698 CCCN", 3 as MARCONI and the others
are blank except for a paper label with the frequency someone had measured.

$5 each - or - 10 for $40

FT-249 Holder Crystals

Size: ≈ 1-3/16" x 1-9/16" x 2-1/8" tall with three 5/32" (.156") dia. pins.
(1) x 1698 KHz
(1) x 5390 KHz
(1) x 5420 KHz

 All 3 for $15

HC-13 Crystals
1 x 62.550 KHz
1 x 76.800 KHz
2 x 83.400 KHz
1 x 116.000 KHz
1 x 153.600 KHz
2 x 184.000 KHz
3 x 192.000 KHz
1 x 196.000 KHz
with .050" dia. plug-in pins

HC-6 / HC-13 / HC-48 Sockets

Augat 8000-A

Qty: 1

Augat 8000-D

Qty: 1

Porcelain

 SOLD

Ceramic

 SOLD

Phenolic

Qty: 1

Nylon

Qty: 1

1 - 184 kHz + 2 - 83.4 kHz
HC-13 Xtal Oscillators - 3/$10

HC-6 Size Mounting Clips
Left: Qty: 15 - 9/16" high.Right: Qty: 10 - 3/16" high.
Clips are for 3/8" x 7/8" holes with circular ends
 and material up to 1/16" thick.

 

HC-48/U Plug-In Crystals

If not shown, Qty = 1.  Cost will be < $1 ea. ( maybe even FREE )
depending on frequency, quantity & whatever else is purchased.
0.025600 MHz
0.360000 MHz
0.368640 MHz x 4
1.152000 MHz
1.740800 MHz
2.048000 MHz
3.168000 MHz
3.176760 MHz
4.390833 MHz
4.400000 MHz
5.910000 MHz		 6.110000 MHz
6.317708 MHz
6.321458 MHz
6.437083 MHz
6.591250 MHz
6.621250 MHz
6.624375 MHz
7.230000 MHz
8.410000 MHz
8.905000 MHz
9.400000 MHz		 10.700000 MHz
11.155000 MHz
11.200000 MHz
11.500000 MHz
11.910416 MHz
12.344583 MHz
12.347083 MHz
12.349583 MHz
12.352083 MHz
12.455000 MHz x 3
13.232500 MHz
14.102500 MHz		 16.311570 MHz x 2
16.318050 MHz x 2
16.327310 MHz x 2
16.334720 MHz x 2
16.768050 MHz x 2
16.930090 MHz x 2
16.936570 MHz x 2
16.945830 MHz x 2
16.953240 MHz x 2
17.231666 MHz
17.500000 MHz
21.400000 MHz
27.120000 MHz		 28.126000 MHz
28.150000 MHz
28.938000 MHz
29.093000 MHz
29.378000 MHz
33.065000 MHz
44.100000 MHz
46.900000 MHz
47.290000 MHz
47.370000 MHz x 2
47.900000 MHz
65.250000 MHz
96.625000 MHz

The following channel elements for HC-48 plug-in crystals are also available for $5 ea.
Elements come with existing crystal of one of the color coded frequencies above
(or ask and I'll swap it with one of the other crystals above).
Green are 3rd Over Tone Crystals
except for 65 & 96 MHz which are
5th Over Tone.

Qty   3 - K1007A Micor VHF Transmit
Qty 10 - KXN1018A Mocom 70 UHF  Receive
Qty   8 - KXN1002A Mocom 70 UHF Transmit

HC-51/U Crystals
1 x 0.921600 MHz  
2 x 1.000000 MHz - MP-2 M-TRON
3 x 1.300800 MHz  
1 x 1.600000 MHz  
1 x 1.782000 MHz  
21 x 1.843200 MHz - Common UART Clock Frequency
3 x 1.996800 MHz  
2 x 2.000000 MHz  
1 x 2.097152 MHz  
4 x 2.457600 MHz - Common UART Clock Frequency
1 x 2.785280 MHz  
21 x 3.579545 MHz - NTSC M Color Subcarrier Frequency
2 x 4.000000 MHz  
3 x 4.433618 MHz - PAL B/D/G/H/I & NTSC M4.43 Color Subcarrier Frequency
1 x 6.000000 MHz  
1 x 14.318180 MHz - NTSC M Color Subcarrier Frequency  (4 × 3.579545 MHz)

U T X

HC-50/U, /T & /X
Plug-In Crystals
(HC-50/U unless noted otherwise)
Qty Frequency Manufacturer /  From Qty 3rd Overtone Frequency Notes
3
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1

9.427812 MHz
9.437187 MHz
9.856875 MHz
10.483120 MHz
10.612500 MHz
12.187500 MHz
12.190000 MHz
12.195000 MHz
12.205000 MHz
12.213330 MHz
12.215000 MHz
12.225000 MHz
12.230000 MHz
12.245000 MHz
12.277500 MHz
12.374583 MHz
12.669777 MHz
12.770830 MHz
12.800830 MHz
13.025000 MHz
13.085830 MHz
13.092000 MHz
13.117000 MHz
13.415830 MHz
15.016700 MHz
16.066660 MHz
17.165550 MHz
17.597777 MHz
18.257777 MHz
18.723333 MHz
21.171800 MHz

 - from PYE radio
- from PYE radio
- from PYE radio
- from PYE radio
- from PYE radio
- from Ultracom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
-
- from PYE radio
- from PYE radio
- Measured Frequency
- from PYE radio
- Measured Frequency
- Measured Frequency
- from PYE radio
- from Ultracom radio
-
- Motorola
-
-
-
-		 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

23.732500 MHz
26.690000 MHz
26.850000 MHz
27.097500 MHz
27.305000 MHz
27.970000 MHz
30.475000 MHz
43.884930 MHz
43.898330 MHz
46.186670 MHz
46.195000 MHz
46.235030 MHz
46.253330 MHz
46.295030 MHz
46.315030 MHz
46.355000 MHz
46.445030 MHz
46.475000 MHz
46.508300 MHz
46.552700 MHz
47.930000 MHz
48.163300 MHz
48.473300 MHz
50.628330 MHz
50.753330 MHz
72.080000 MHz
83.450000 MHz

 - from PYE radio
- HC-50/T - R/C 27.145 Rx
- CB Chan 30 Rx
- from WR154 Radio
- CB Chan 30 Tx
- from PYE radio
- from Johnson radio
- from PYE radio
- from PYE radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from Systcom radio
- from a Pro 10 Scanner
- from a Pro 10 Scanner
- from a Pro 10 Scanner
- Motorola KXN6122
- from WR154 radio
- from Pro 10 Scanner
- from WR154 radio
-
- 5th Over Tone
- 5th Over Tone

 

HC-50 Crystal Sockets
Qty: 10

U T X

HC-49/U, HC-49/T & HC-49/X
Crystals
Case Frequency Qty   Notes
HC-49/T 14.000000 MHz
16.877222 MHz
16.967130 MHz
17.328240 MHz
17.375000 MHz
17.400000 MHz
18.636666 MHz
20.945000 MHz
59.433330 MHz
68.710000 MHz
86.805000 MHz
86.820000 MHz
92.442500 MHz
92.547500 MHz
92.555000 MHz		   5
  1
  1
  1
  1
  1
  2
  3
  1
  3
  5
25
12
  9
19		 –
RNet-150
RNet-450
RNet-450
WEST D3 (R-NET??)
WEST D3 (R-NET??)
RNet-150
–
WEST D3 (R-NET??)
–
WEST HO
–
–
–
–		 –
Tx ( x9 ) for 151.8950
Tx (x27) for 458.1125
Tx (x27) for 467.8625
Tx ( x9 ) for 156.3750
Tx ( x9 ) for 156.6000
Tx ( x9 ) for 167.7300
–
Rx (x3 +10.7) for 189.000
Rx (x2 +21.4) for 158.820
Rx (x2 – 21.4) for 152.210
Rx (x2 – 21.4) for 152.240
Rx (x2 – 21.4) for 163.485
Rx (x2 – 21.4) for 163.695
Rx (x2 – 21.4) for 163.710
Case Frequency Qty   Notes
HC-49/X 12.000000 MHz
14.000000 MHz
27.955000 MHz
29.266000 MHz
44.665000 MHz
49.943333 MHz
51.639060 MHz
52.857812 MHz		 2
2
4
4
1
2
1
1		 –
–
–
–
RNet-150
RNet-150
RNet-450
RNet-450		 –
–
Tx ( x6 ) for 167.7300
Rx (x5 +21.4) for 167.7300
Rx (x3 +17.9) for 151.8950
Rx (x3 +17.9) for 167.7300
Rx (x8 + 45 )  for 458.1125
Rx (x8 + 45 )  for 467.8625
Case Frequency Qty   Notes
HC-49/U List of >900 49/U crystals to follow when I find time or receive an enquiry.

Misc. Crystals
Qty: 6  –  6.176000 MHz
3/4" dia. x 1/2" w/ 4 leads
( 2 are case connections )

Right - Inside view. One was
opened to determine if these
were a crystal, oscillator, filter
or whatever else they may be.

Reeves-Hoffman
RH-515 & RH-516 Crystals
1 x 720.000 KHz
1 x 2.5000 MHz
1 x 14.7456 MHz
1 x 115.200 KHz
Qty: 1 –  10.000 MHz Xtal
3/4" dia. x 1/2" w/ 4 leads
( 1 pair of leads for
each crystal connection )
 

HC-49/US, TB-26, TB-38 & other small Crystals
Case Quantity is 1 and Frequency is MHz unless noted otherwise

HC-49/US		 3.6864,   (2x) 3.99,   6.000,   7.624,   (2x) 8.000,   8.192,   (8x) 10.000,   8.467,  9.091,
(10x) 10.000,   (5x) 12.000,   12.288,   13.355,   13.500,   (2x) 14.317,   (12x) 14.318180,
14.322,   (2x) 15.000,   (2x) 15.974,   (6x) 16.000,   16.900,   (2x) 19.6608,   (5x) 20.000,
22.100,   (3x) 24.000,   24.500,   (4x) 25.000,   28.000.  
3rd harmonic: 35.2512 (11.7504),   41.472 (13.824),   48.000 (16.000),   49.000 (16.333)
Case Qty Frequency   Notes  

TB-26		 7 32.768 KHz    
52 65.526 KHz  

TB-38		 25 32.768 KHz    
3 17.445 MHz   RNet-150 Radio - Local Osc  
  plus 1 ea. of 4.0 MHz, 4.194304 MHz, 6.0 MHz, 9.6 MHz, 10.98 MHz, 14.318 MHz,
  20 MHz & (2) 24 MHz.		  
6 32.768 KHz   Statek CX crystal.
  Click image for a larger view of this tiny crystal.		 $2 ea.

 

Ceramic Resonators
Case Frequency Qty Labelled GREY is assumed missing information

 NOS 		330.5 KHz 3 RMC Z9 .45" dia. x .525"h  w/ 1 attached silver mica capacitor
381.0 KHz 3 RMC ZB .37" dia. x .43"h
491.5 KHz 11 RMC FA
491.5 ±1 KHz		 .37" dia. x .43"h
767.4 KHz 1 RMC 7A .37" dia. x .43"h  w/ 2 attached silver mica capacitors
810.2 KHz 1 RMC MI .37" dia. x .43"h  w/ 2 attached silver mica capacitors






393 KHz 1

   393 B

 from circuit with w/ 22 pfd caps
400 KHz 1 BFB 400 R2  
1 CSB 400 B  
1 CSB 400 D  
2 CSB 400 P  
455 KHz 10 CSB 455 E   NOS
480 KHz 4 CSB 480 B4  
1 CSB 480 E  
2 CSB 480 H4  
495 KHz 1 CSB 495 A  
500 KHz 1 CSB 500 A3  
1 CSB 500 B  
3 CSB 500 E  
512 KHz 1

512

  
600 KHz 1 CSB 600 C  
616 KHz 1 CSB 616 B5  
800 KHz 4 CSB 800 A   2 NOS
983 KHz 3   983J   (Small) 3/16" x 3/32" x 1/4"h
1.000 MHz 2 1000J
1.843 MHz 1 1843   
480 KHz 2 A01 Freq was determined using 100pfd loading caps
(same caps as a CSB type resonator requires)
5/16"w x 5/32"d x 13/32"h
495 KHz 2 A02
3.580 MHz 1 3580A   w/ 3 leads & built in capacitors

  Resonators are muRata other then
    4000A which is Panasonic (Matsushita)
4.000 MHz 1 4000A
4.150 MHz 1 4150A
12.000 MHz 1 12000C
16.930 MHz 1 16930C
32.000 MHz 1 32000C
33.868 MHz 1 33868C

With so little printed on many of the following, it's often hard to know the freq, model or if 3 leaded ones are even a resonator or filter. They've become so inexpensive that they're hardly worth listing, but, if someone wants some to experiment with, get an assortment of 10 for $2 or e-mail for whatever other info I may have on certain units if only interested in those of a particular frequency.
















  300 KHz 2 300

muRata - w/ 3 leads
2.000 MHz 2 2.00G muRata
2.500 MHz 1 CSA 2.50MT muRata
3.000 MHz 1 3.00 muRata - w/ 3 leads - tested & found to be a resonator
3.580 MHz 8 Various Units: NTK R3.58M, muRata CSA3.58MS, muRata 3.58G,
KBR3.58MSV, KBR3.58MSW, F3.58
4.000 MHz 8 Various Units: TDK 4.0M2, muRata 4.00G,
muRata CSA4.00MA, MS & MT, KBR4.0MSP & MW
4 4.00 muRata - w/ 3 leads - tested & found to be resonator
4.190 MHz 1 KBR4.19MP  
2 4.19MC TDK w/ 3 leads - tested & found to be resonator
4.500 MHz 1 4.5B3  
5.000 MHz 1 KBR5.0M  
1 5.00 muRata - w/ 3 leads - tested & found to be a resonator
5.740 MHz 1 5.74B w/ 3 leads
6.000 MHz 7 CSA6.00MT muRata
5 6.00G muRata
5 6.00M TDK
1  6.0MC TDK - w/ 3 leads
6.550 MHz 1 CSA6.55MT muRata
7.370 MHz 1 KBR7.37M  
9.220 MHz 1 CSA9.22MT muRata
10.000 MHz 1 ZTA10.0MT  
2 CSA10.0MT muRata
1 10.0T muRata - w/ 3 leads
14.000 MHz 1 CSA14.00MX muRata
14.740 MHz 1 CSA14.74MX muRata
16.000 MHz 1 ZTA16.0MX  
1 CSA16.00MX muRata
16.930 MHz 1 CSA16.93MX muRata
22.110 MHz 1 22.11X muRata - w/ 3 leads
25.000 MHz 1 25.00X muRata - w/ 3 leads
32.000 MHz 1 CSA32.00MX muRata
33.860 MHz 1 33.86 muRata

Oscillator Modules
Case Qty Frequency Notes Price
1 60 KHz Bias Osc
Labelled: 60854460  60khz
≈ 12 VDC, 5 pins, .8" x .8" x .8"		 $5
ea.
2 75 KHz Bias Osc Labelled: 805 11 75K  (identical to photo of 60 KHz unit except for metal bottom insert that makes it fully shielded)
≈ 6 VDC, 5 pins, .8" x .8" x .8"
(Reserved
 for photo)		 1 15.360 MHz Labelled: KSS / TXCO-102C / 9224Y
.8" x .8" x .4" high		  
1 25 MHz Saronix 25.0000 NTH089B / enable input / .5" sq. x .19"h $2
ea.
1 32 MHz KSS CX0824 / 9EZ / enable input / .5" sq. x .19"h
1 50 MHz MCO-1500A / .5" sq. x .19"h
8 pin DIP 2 14.31818 MHz SG531 C, 5V 23ma, OE, 10TTL/50pfd, ±100ppm, −20C~+70C  
1 18.432 MHz
1 32.000  MHz SG531H C, 5V 35ma, , OE, 50pfd, ±100ppm, −20C~+70C
1 40.000 MHz
14 pin DIP 1 10.000 MHz VECTRON,  w/ Freq Adjustment Trimmer,  
1 20.000 MHz Motorola K1091A, 14 pin DIP, 5 Volt  NOS
2 29.4912 MHz SG51PTJ, 5V 35ma, OE, 5TTL, ±100ppm, −20C~+70C  NOS
Module 1 14.400 MHz Motorola KXN1096A Reference Osc from a UHF MCX100  
M-38 1 4.200 MHz Motorola 04C01,  w/ Freq Adjustment Trimmer $10
M-38 13 10.000 MHz Greenway Industries ZT-104 w/ Freq Trimmer Input  
M-40 1 12.600 MHz Standard KH010Y9060, TCXO Osc    NOS  
M-40 1 15.360 MHz TOYOCOM 51P07,  w/ Freq Adjustment Trimmer  
  List of >100 other M-38 & M-39 oscillator modules to follow
when there's time or enquires are received.		 $1 ea.
(or less)

Crystal & Ceramic Filterss

Ceramic Filters
Case Frequency Qty Labelled   Size - "W x "D x "H
455 KHz 3 455-D   9/32 x 3/16 x 11/32 2/$5
5/$10
1 LF-A 10  
1 LF-A 15  
1 LF-B 6   5/16 x 9/32 x 11/32
2 LF-B 15  1 NOS
2 LF-B 30   5/16 x 9/32 x 5/16
2 B32SM 07 NOS
2 muRata - CFU 455 G NOS

Type SFE for signal detection.
E10.7A is MA8 series filter.		 455 KHz 12 muRata - SFU 455 A NOS 9/32 x 1/8 x 11/32 2/$5
5/$10
1 muRata - SFU 455 B  
3.58 MHz 2 muRata - SFE 3.58 MB   3/8 x 1/8 x 3/8 SIP
4.27 MHz 1 muRata - SFE 4.27 MB (Red Dot)  
4.50 MHz 5 muRata - SFE 4.5 MB 4 NOS
10.7 MHz 2 muRata - E 10.7 A (White Dot)   1/4 x 3/32 x 1/4 SIP
5 muRata - E 10.7 A (Orange Dot)  
8 muRata - E 10.7 A (Red Dot) NOS
455 KHz 3 muRata CFK455 NOS 11/32 x 9/32 x 13/32 3/$15
703.3 Hz 2 muRata EFM-G (15) 703.3 NOS 23/32 x 9/32 x 5/16 4/$12
707.3 Hz 1 muRata EFM-G (15) 707.3 NOS 23/32 x 9/32 x 5/16
1357 Hz 1 muRata EFM-G (21) 1357 NOS 23/32 x 9/32 x 5/16

 

KSS MXF21.4 - 7.5C Filter

.475" x .6" x .6" high NOS Qty 1$10

 

(Reserved for photo)

GRE FEC-113-4 SSB 11.2735 MHz Filter

1−1/2" x 7/8" x 13/16" highQty 1$10

 

Cathodean BP 4142-2 Crystal Filter

3/4" x 3/8" x 13/16" high NOS Qty 22/$15

 

PL19C304219G1 BP Filter

1-5/16" x 1/2" x 13/16" highQty 22/$15

 

Cathodean and
 ITT 015BA/901NM

10.7 MHz ±10kHz Crystal Filters

1−3/8" x 1" x 3/4" high

 The 4 ITT Filters are NOS

Qty 7$10 ea.2/$15
3 filters are Cathodean with customer part numbers of FC03200, FC03205 & FC03234
that were received packaged together with 5 ITT 015BA/901NM filters and I assume
are all basically the same, and with the same specifications, as the ITT filters.

 

Snelgrove PES-00599,
Cathodeon & ITT 024BF

21.4 MHz ±7.5kHz Crystal Filters

11/16" x 1−1/2" x 5/8" high

 NOS Qty 6$10 ea.2/$15
4 of these filters are Snelgrove PES-00599 and have 'L5' printed on the bottom, 1 is a Cathodeon filter and 1 is an ITT.
They were all received packaged together and I'm assuming that they are all basically the same thing and have the
same specifications as the ITT filter.

 

CMC
246-720120-001
P/N 001-12300

1" x 2−3/8" x 3/4" high

 NOS Qty 3$10 ea.2/$15

 

HC-6 49U UM-? UM-1 49US

Crystal Filters
Case Qty Frequency Labelled Case Qty Frequency Labelled Manufacturer / From
HC-6 3 181.984 KC
183.592 KC		 32EA HC-49/U 1 10.700 MHz 11E04 Motorola MITREK
3 10.700 MHz 11E05 Motorola MITREK
4 185.963 KC
184.398 KC		 32EB 2 10.700 MHz FYB  
UM-? 2 17.700 MHz 443G1 177H 9.9 x 2.6 x 9.5mm high
3 189.985 KC
191.592 KC		 32EC 2 17.900 MHz 15D03 KSS   NOS
UM-1 2 17.790 MHz 20J08 Motorola
2 193.964 KC
192.398 KC		 32ED 3 21.400 MHz 21J1B Toyocom  1 NOS
2 ?? 22E2B2 Toyocom
3 183.880 KC
184.035 KC		 32EE 1 45.000 MHz 20J09 Motorola RNet Radio
1 45.000 MHz 600P03 Motorola RNet Radio

 

Polylithic Crystal Filters
from telephone carrier equipment

1 of each size was opened to help determine what these are. I'll try to test and find their center frequency, band width, etc., but until I do, or someone sends me this information, buy them for something interesting to test & use, for the gold, or whatever.

Top:  Qty: 7   #083-00628-05
1" dia. x 1/2"
Freq: 8.143825 MHz
B.W. ≈ 75 Hz

Bottom:  Qty: 4  #083-00336
Qty: 3  #083-006351" dia. x 7/8"
B.W. is 4 kHz with very sharp response
Freq Stability is < ±35 Hz from 0° - 50°C
Input, Output and
2 ground pins.

An authority on crystals with much better equipment then I'll ever have access to reported that the bandwidth of the upper unit is ≈ 75 Hz and that "It clearly has quite a bit of hand assembly and must have been quite expensive. It appears to be a 4-pole, 1-zero filter and is constructed using two 2-pole monolithic filters and four capacitors with a gold plated shield between the two monolithic filters". The larger 5 section filters were used with the smaller ones so likely the same frequency and consist of 3 coupled resonator pairs & 2 single resonators. A article on such filters says the typical freq stability is less then ±35 Hz from 0° to 50°C, bandwidth is 4 kHz, frequency response is extremely sharp and spurious responses are 70 dB below the passband level.

This page was last updated: July 01, 2010

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