Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: old radio crystals  (Read 6687 times)
JACKEL44
Member

Posts: 7




Ignore
« on: January 25, 2011, 02:36:19 PM »

An had an old friend who was a radio tech for many years.  He use to tell me about the radios on the bombers he worked on.  When he was going to nursing home, he gave me all his old radio components.  I have stored them for a good 10 years.  I would like to get rid of them, but I'd hate to just toss them.  Any information you might have would be great.

Thanks
Matt

http://s1125.photobucket.com/albums/l586/mstutzomaha/Radio/
Logged
N2EY
Member

Posts: 3926




Ignore
« Reply #1 on: January 25, 2011, 04:06:02 PM »

Those are quartz crystals used in WW2-era transmitters. Some are quite useful if they work.

What a potential buyer needs to know is the frequency of each crystal. They are all marked in kilocycles (kc) but are hard to read in the pictures.

How about making a list and posting it?

73 de Jim, N2EY
Logged
JACKEL44
Member

Posts: 7




Ignore
« Reply #2 on: January 25, 2011, 04:42:39 PM »

Those are quartz crystals used in WW2-era transmitters. Some are quite useful if they work.

What a potential buyer needs to know is the frequency of each crystal. They are all marked in kilocycles (kc) but are hard to read in the pictures.

How about making a list and posting it?

73 de Jim, N2EY

That sounds like a plan

Any frequencys more sought after than others?
Logged
N2EY
Member

Posts: 3926




Ignore
« Reply #3 on: January 26, 2011, 03:20:04 AM »

Any frequencys more sought after than others?

Frequencies in the amateur bands may be more desirable. But it all depends on the buyer.

I don't know if you have the resources to test the crystals. If not, they will go for a lower price.

If you just want to get rid of them, the best bet may be to publish a list of frequencies and take offers on the whole pile, as-is. A flat-rate box will probably hold all of them if you pack them well.

73 de Jim, N2EY
Logged
JACKEL44
Member

Posts: 7




Ignore
« Reply #4 on: January 26, 2011, 06:38:50 PM »

Here is list of what I have.  I wrote what was actually written.

How do you test them?  I have all that guys old equipment. 
 
Type   Manufacture   Frequency   Channel   Date   Notes

17-P   Standard Piezo Co   135.9M         
CHF-40125   Navy   3865         
CHF-40125   Navy   4320         
CR-1A   USAF   7011.11   126.2      
CR-1A   USAF   7550         
CR-1A   Unknown   7660         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
CR-6   CBYK   7810         
Cr-8B   KC   78.7         
Crl-16   Crystal Lab   3105         
Crl-16   Crystal Lab   3105         
Crl-16   Crystal Lab   3105         
Crl-16   Crystal Lab   3105         Missing one Screw
Crl-16   Crystal Lab   3590         Custom
Crl-36   Crystal Lab   3105         
DC-11-B   Signal Corps   8080         
DC-11-B   Signal Corps      7400      Unreadable
DC-30   Signal Corps   6450         
DC-30   Navy   6750   121.5      
DC-34   Keystone Piezo Co   1720         
DC-34   Gentleman Products   1770         
DC-34   Kemlite Lab   1790         
DC-34   Pennsylvania Crystal Co   1810         
DC-34   Kemlite Lab   1830         
DC-34   Kemlite Lab   1870         
DC-34   R 9 Crystal   1910         
DC-34   Silver City   1910         
DC-34   Kemlite Lab   1930         
DC-34   Pennsylvania Crystal Co   1950         
DC-34   Franklin   2010         
DC-34   Keystone Piezo Co   2010         
DC-34   Pennsylvania Crystal Co   2082         
DC-34   Kemlite Lab   2106         
DC-34   WM. T. Wallace   2142         
DC-34   Pacific Radio Co   2174         
DC-34   Pacific Radio Co   2540         
DC-34   Pacific Radio Co   2540         
DC-34   Kaar Engineering Co   2710         
DC-34   Pacific Radio Co   2894         
DC-34   Pacific Radio Co   2926         
DC-34   Wynne Precision Co   2926         
DC-34   Franklin   2980         
DC-34   CZN   3000         
DC-34   Gentleman Products   3095         
DC-34   Federal Engr Co   3190         
DC-34   WM. T. Wallace   4030         
DC-34   DX Xtal Co   4090         
DC-34   Wenkstern Hasley Co   4210         
DC-34   Wenkstern Hasley Co   4210         
DC-34   WM. T. Wallace   4240         
DC-34   WM. T. Wallace   4240         
DC-34   Pennsylvania Crystal Co   4255         
DC-35   Pacific Radio Co   2075   1690      
DC-35   Scientific Radio   2155   1770      
DC-35   Franklin   2235   1850      
DC-35   Keystone Piezo Co   2375   1990      
DC-35   Kemlite Lab   2527   2142      
DC-35   Kemlite Lab   2559   2174      
DC-35   Kaar Engineering Co   2643   2258      
DC-35   Pacific Radio Co   2831   2446      
DC-35   Federal Engr Co   2851   2466      
DC-35   Federal Engr Co   2851   2466      
DC-35   Federal Engr Co   2899   2514      
DC-35   WM. T. Wallace   3279   2894      
DC-35   CZN   3412.5   3027.5      
DC-35   CACN   3462.5   3077.5      
DC-35   Wenkstern Hasley Co   3480   3095      
DC-35   Wenkstern Hasley Co   4012.5   4397.5      
DC-35   Federal Engr Co   4015   3630      
DC-35   Henry Mfg Co   4015   3630      
DC-35   WM. T. Wallace   4085   3700      
DC-35   Wenkstern Hasley Co   4115   3730      
DC-35   Henry Mfg Co   4155   3770      
FT-171B    Signal Corps   1738         
FT-171B    Signal Corps   1746   Trans 1      
FT-171B    Signal Corps   1746   Trans 1      
FT-171B    Signal Corps   2131   Rec 1      
FT-171B    Signal Corps   2260         
FT-171B    Signal Corps   2280   Trans 3      
FT-171B    Signal Corps   2290         
FT-171B    Signal Corps   2292.5   4585      
FT-171B    Signal Corps   2305         
FT-171B    Signal Corps   2467   Rec 2      1 Bannana plug is missing
FT-171B    Signal Corps   2467   Rec 2      
FT-171B    Signal Corps   2665   Rec 3      
FT-171B    Signal Corps   2725   Rec 4      
FT-171B    Signal Corps   2725         
FT-171B    Signal Corps   3422.5   Trans 5      
FT-171B    Signal Corps   3807.5   Rec 5      
FT-171B    Signal Corps   3870   Rec 6      
FT-171B    Signal Corps   3870   Rec 6      
FT-171B    Signal Corps   4255   Trans 6      
FT-171B    Signal Corps   4255   Trans 6      Both Bannana plugs are missing
FT-171B    Signal Corps   4255   Trans 6      
FT-241-A   Western Electric   200K         
FT-241-A   Federal Engr Co   25.3M   53      
FT-243   Scientific Radio Co   2700   B      
FT-243   Scientific Radio Co   3245   B      
FT-243   Scientific Radio Co   3655   B      
FT-243   Scientific Radio Co   3735   B      
FT-243   Scientific Radio Co   3735   B      
FT-243   Scientific Radio Co   3825   B      
FT-243   Scientific Radio Co   3825   B      
FT-243   Scientific Radio Co   3995   B      
FT-243   Scientific Radio Co   3995   B      
FT-243   Scientific Radio Co   4190   B      
FT-243   Scientific Radio Co   4190   B      
FT-243   Scientific Radio Co   4280   B      
FT-243   Scientific Radio Co   4780   B      
FT-243   Scientific Radio Co   5235   B      
FT-243   Scientific Radio Co   5305   B      
FT-243   Scientific Radio Co   5485   B      
FT-243   American Jewels   5655.555   B      
FT-243   American Jewels   5700         
FT-243   Bodnar   5744.444         
FT-243   Tedford   5744.444   B      
FT-243   Scientific Radio Co   5760   B      
FT-243   Scientific Radio Co   5880   B      
FT-243   Scientific Radio Co   5880   B      
FT-243   Scientific Radio Co   5955   B      
FT-243   Cecor   8150   369      
FT-243   RCA   8150   369      
FT-243   Univ K.C.   8150   369      
M-6   Mccoy   10175   122.5   Nov-64   
M-6   Hermetic   10208.333   122.5   Feb-56   
MC-9   Bliley Electric   3105         
MC-9   Unknown   3456         Custom
Type 800   Motorola   3105         
Unknown   Unknown   10241.66   122.9      
Unknown   Peterson Radio   10300K   123.6      
Z-1   Peterson Radio   2374         
Z-1   Peterson Radio   3023.5         
Z-1   Peterson Radio   3023.5         
Z-1   Peterson Radio   6233         
Z-1   Peterson Radio   6288         
Z-1   Peterson Radio   6388         
Z-1   Peterson Radio   6438         
Z-1   Peterson Radio   6450         
Z-1   Peterson Radio   6533         
Z-1   Peterson Radio   6750         
Z-1   Peterson Radio   7873.33         
Z-1   Peterson Radio   8008         Still In Box
Z-1   Peterson Radio   8230         Still In Box
Z-1   Peterson Radio   8230         Still In Box
Z-1   Peterson Radio   8873.33         
Z-1D   Peterson Radio   6805.56         
Z-2   Peterson Radio   8004         
Z-2   Peterson Radio   8509         
Logged
AC5UP
Member

Posts: 3956




Ignore
« Reply #5 on: January 26, 2011, 07:22:08 PM »

Looks like previous owner was interested in 160 and 80 Meters...

FWIW 160 Meters is from 1800 to 2000 kHz, 80 Meters is from  3500 to 4000 kHz (with the upper end of 80 often referred to as 75 Meters). You have some crystals within those two bands plus a few that could have been used on the old Marine Band, but the majority of it is military surplus intended for frequencies where amateurs dare not go. FT-243 crystal holders used to be cheap & plentiful enough that guys would buy junk frequencies and retrofit the holder with a modern crystal and your list reflects that. Preserved the vintage look and saved the grief of modifying a boatanker.

As for testing crystals, there are different cuts on the quartz which affects the drive current and whether it's a fundamental or overtone type. Translation: It can be done, but rarely by mortals.

I predict there will be very limited interest in your crystal stash as the days of building a two tube CW rig are long gone....
Logged

Never change a password on a Friday                
JACKEL44
Member

Posts: 7




Ignore
« Reply #6 on: January 27, 2011, 03:16:01 AM »

I appreciate the information.  If their is not much use in the private sector and the military does not use them any more, should I donate them to a local air and space museum than?  I don't really want to throw them away.
Logged
N2EY
Member

Posts: 3926




Ignore
« Reply #7 on: January 27, 2011, 04:45:37 AM »

I appreciate the information.  If their is not much use in the private sector and the military does not use them any more, should I donate them to a local air and space museum than?  I don't really want to throw them away.

I would first see if anyone is interested in buying them as a complete set, as-is.

There are some folks (like myself) who are interested in older technology, who would buy them, test them, etc. Those folks would actually use them.

How much you want for the whole pile? Looks like they'd fit in a flat-rate box.

73 de Jim, N2EY
Logged
JACKEL44
Member

Posts: 7




Ignore
« Reply #8 on: January 27, 2011, 08:07:46 AM »


I would first see if anyone is interested in buying them as a complete set, as-is.

There are some folks (like myself) who are interested in older technology, who would buy them, test them, etc. Those folks would actually use them.

How much you want for the whole pile? Looks like they'd fit in a flat-rate box.

73 de Jim, N2EY
[/quote]

I don't even know how much they are worth, if their are people interested shoot me a price.  Shipping would be reasonable in a medium flat rate box. 

I also have a Heathkit Condenser Checker model C-3 a EICO Signal Generator model 315, and a tuning unit BC-746-B Ch#5 KC-5500.  I removed it from his shop 10 years ago, were it was all still in use. 
Logged
K2OWK
Member

Posts: 1077




Ignore
« Reply #9 on: January 27, 2011, 02:36:19 PM »

Old crystals have a collector following. Check EBay for the price they will bring on auction. I sold a half dozen on EBay and the the amount I got for them was surprisingly high. Good luck.
73s

K2OWK
Logged
K3HVG
Member

Posts: 149




Ignore
« Reply #10 on: February 23, 2011, 04:29:25 AM »

A few comments on your crystal collection; Looks like you have probably 4 or 5 different series of crystals.  The large ones with the banana pins are for the BC-610 transmitter.  Although the frequencies are, generally, not useful, the holders can be re-used/re-stuffed.  The other sets you have are, for example, for the AN/ARC-3 and AN/ARC-49 VHF transmitter.  A few of the frequencies will come out in the 6 and 2 meter bands.  The large group of FT-243's you have come from either the BC-611 or the BC-620/659 radio sets.  Most of the frequencies you have are, again, not useful to the radio amateur.  That said, there are those who use the old FT-243 holders and re-stuff them with very small crystals cut for desired frequencies.  None of the "sets" you have are complete as most originally had from 100 to 200 crystals in the set.  Even with complete sets, the most an amateur could glean was 5-6 crystals from any given set.  However..... please, don't throw them away!  When these things are gone... they're gone forever!
Logged
JACKEL44
Member

Posts: 7




Ignore
« Reply #11 on: February 23, 2011, 07:17:31 AM »

A few comments on your crystal collection; Looks like you have probably 4 or 5 different series of crystals.  The large ones with the banana pins are for the BC-610 transmitter.  Although the frequencies are, generally, not useful, the holders can be re-used/re-stuffed.  The other sets you have are, for example, for the AN/ARC-3 and AN/ARC-49 VHF transmitter.  A few of the frequencies will come out in the 6 and 2 meter bands.  The large group of FT-243's you have come from either the BC-611 or the BC-620/659 radio sets.  Most of the frequencies you have are, again, not useful to the radio amateur.  That said, there are those who use the old FT-243 holders and re-stuff them with very small crystals cut for desired frequencies.  None of the "sets" you have are complete as most originally had from 100 to 200 crystals in the set.  Even with complete sets, the most an amateur could glean was 5-6 crystals from any given set.  However..... please, don't throw them away!  When these things are gone... they're gone forever!


I still have them and are reluctant to split up and sell on E-Bay.  I would let them all go for 50 plus shipping.
Logged
AA4HA
Member

Posts: 1640




Ignore
« Reply #12 on: February 23, 2011, 07:55:49 AM »

Many of those crystals can be opened up and the crystal wafer polished down to move the crystal up in frequency (by making it slightly thinner) or by using a graphite pencil to make it slightly thicker (by making it slightly thicker).

I have around 300 of those FT-243's in complete sets. Someday I will put them up on eBay for  $100 to $200 for the set.

Folks used to pick through them to find the 2-3 that could be of immediate use to them. There is a great deal you can do with the crystals if you are willing to spend a little bit of time in changing frequencies.

BTW, one of the techniques to move the crystals up in frequency by polishing was to open up the crystal case, pull out the little square (or circular) crystal element and to use a tiny bit of toothpaste powder on a piece of flat glass to gently polish and thin the wafer.

These old type crystals are the only types left out there where you can easily open them up to make this sort of change. All of the newer crystals are either with soldered or welded cases.

I would not let them go so easily, they are worth something to somebody.

Tisha Hayes
AA4HA
Logged

Ms. Tisha Hayes, AA4HA
Lookout Mountain, Alabama
WM3X
Member

Posts: 8




Ignore
« Reply #13 on: December 01, 2014, 02:27:07 AM »

Do you still have these crystals?  If not, can you put me in contact with the buyer?  Thanks.

Bill, WM3X
Logged
JACKEL44
Member

Posts: 7




Ignore
« Reply #14 on: December 01, 2014, 07:54:04 AM »

I sold them in 2011 to a guy on facebook that seen my post on here.
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!