ORDER PAGE FT243 CRYSTALS 4500 - 5000 kHz

LOWER FREQ HIGHER FREQ

ORDER FT243 CRYSTALS with VISA, MASTERCARD, AMEX, PAYPAL etc:

CUSTOMER REVIEWS of AF4K PRODUCTS.

PAY WITH PAYPAL OR CREDIT CARD, mail in form or E-MAIL us to pay
with a check or money order. OR: USE OUR ORDER FORM below for postal orders.
Please note that we do NOT accept Western Union money orders or other
oddball m.o. that is not accepted at the bank.

QUESTIONS?
E-mail Brian Carling, AF4K

DO YOU PREFER PAYING BY CHECK OR MONEY ORDER? (Also credit card, Paypal etc.)
CLICK HERE TO PRINT AN ORDER FORM AND SEND IN BY MAIL!

4500 kHz
 4600 kHz
SOLD OUT 		4660 kHz
 4667 kHz
4695 kHz
 4708 kHz
 4712 kHz
 4735 kHz
4750 kHz
 4755 kHz
 4760 kHz
 4780 kHz
4820 kHz
 4830 kHz
 4840 kHz
 4845.5 kHz
4852.5
 4863 kHz
 4880 kHz
 4930 kHz
4950 kHz
 4980 kHz
 4995 kHz

CLICK "VIEW CART" IN ORDER TO CHECK OUT AND PAY !!

CLICK "VIEW CART" IN ORDER TO CHECK OUT AND PAY !!

(PLEASE CHECK QUANTITIES IN CART CAREFULLY BEFORE COMPLETING YOUR ORDER!)

These crystals were featured in CQ Magazine October and December 2004 issues
in the "World of Ideas" articles by Editor Dave Ingram, K4TWJ, on a "6L6 Resurrection - 2004 Style."
This is a construction project for a power oscillator transmitter using the venerable 6L6 vacuum tube.

These crystals were also featured in an 8 page technical report in ELECTRIC RADIO
magazine for May 2005 by G3UUR. Materials science expert David Gordon-Smith, G3UUR conducted
some very tough tests on these crystals using a high-powered Pierce power oscillator circuit
and discovered that some of them could withstand internal temperatures of over 200 degrees Celsius.
In some cases they can actually prove to be MORE reliable than the old World War Two era
FT243 crystals. The crystalline structure is more pure and less prone to failure.

FT243 crystals have pins spaced 1/2 inch apart, and are used in MANY ham radios made from
the 1940s through 1970s. They are also used in countless military sets such as the BC-611 and GRC-109 etc.
Note- some of these are original FT243 crystals, some are reworked surplus units with
wire lead crystals inside as described in tube transmitter articles using them in CQ Magazine
and detailed technical analysis in Electric Radio Magazine.

CUSTOMER REVIEWS of AF4K PRODUCTS.

Our FT243 crystals are generally $16.00 to $24.00 each.
PAY WITH PAYPAL OR CREDIT CARD, mail in form or E-MAIL us to pay with a check or money order. OR: USE OUR ORDER FORM below for postal orders. Please note that we do NOT accept Western Union money orders or other oddball m.o. that is not accepted at the bank.

QUESTIONS?
E-mail Brian Carling, AF4K

DO YOU PREFER PAYING BY CHECK OR MONEY ORDER? (Also credit card, Paypal etc.)
CLICK HERE TO PRINT AN ORDER FORM AND SEND IN BY MAIL!

SEND TEXT MESSAGE or call AF4K CRYSTALS:

VARIOUS CRYSTAL SALE LISTS:

SPECIAL CRYSTAL PAIRS with 455 kHz T-R offset for 160m and 75m AM etc:

(as used in BC-611 and other military radios, etc.)

These are FT243 T-R Crystal pairs for 455 kHz i.f. radios such as BC-611 etc.

(For some pf these, I only have one pair left)
1885 - 2340 kHz
1945 - 2400 kHz
1985 - 2440 kHz

3685 - 4140 kHz

3735 - 4190 kHz
3800 - 4255 kHz
3870 - 4325 kHz
3880 - 4335 kHz
3885 - 4340 kHz

5500 - 5995 kHz

Frequencies

SPECIAL 75m DOUBLER CRYSTALS:
FT243 DOUBLER crystals for certain military and ham transmitters:
1940, 1942.5 and 1945 kHz - for use at 3880, 3885 and 3890 kHz.

6m CW X6 Multipliers:
8350 kHz = 50.100 MHz - others available...

6m FONE X6 multipliers:
8375, 8400 kHz - others available...

2m AM X6 multipliers etc.:
8025, 12500 kHz (many others close to these too!)
8025 X 18 = 144.45 MHz.

Some Original Old FT243 Crystals

FOR THOSE WHO PREFER - HERE ARE A NUMBER OF THE ORIGINAL WW2-era FT243 Crystals that
I have recently obtained - NONE OF THESE HAVE THE NEWER SMALL CRYSTALS INSIDE OF THEM:

CLICK HERE FOR THE COMPLETE LIST

CUSTOM CRYSTALS

For custom crystals please contact:
Quartslab Co. in the UK:
http://quartslabd.co.uk

Or possibly try:
Andy/Andreas Fleischer DC9XP
Paschenburgstr. 22
D-28211 Bremen / Germany
Tel. (+49) 0421-353060

Andy Fleischer in Bremen Germany - supplier of Custom Crystals

Notes:
3560 kHz - QRP etc.
3558 kHz - FISTS GROUP
3615 kHz - EUROPE etc.
3700 kHz - SLOCHAT GROUP etc.
3837 kHz - AWA Net on AM
7040 kHz - QRP etc.
7050 kHz - Boatanchors
7052.7 kHz- SLOCHAT GROUP etc.
7123 kHz - GLOWBUGS GROUP, SLOCHAT etc.
7143 kHz - Lake Erie Boatanchors Group, X2 for 20m AM
14060 kHz - QRP etc. 21060 kHz - QRP 14286 kHz - AM guys

Ratings:
Tolerance ratings are + / - 50 ppm.
Most of the items above are now available in HC-6/U
and in HC-49/U or HC49/US wire lead holders also.

Collins Crystals For Sale:

Drake Crystals For Sale:

Yaesu Crystals For Sale:

Military Surplus CS-137 Crystal case

These cases hold 120 standard FT243 crystals, as used in WW2 era military radios
and the same crystals have been used in ham radio equipment throughout
the past 50-60 years.

It's a nice green, double-locking case with two compartments that each hold 60 crystals.
Ideal for storing your radio crystals and keeping them from getting lost when you are
not on the air, or they also make a great collectible item.

We currently have several of these for sale. They go for around $45 to $100 each on eBay.
These are available for $25.00 - for a nice, complete one.
Will sell for $25 plus shipping.

BFO crystals and filter crystals etc.

Several crystals are available on 100 kHz etc. as follows:

100 kHz calibrator crystals standard hc13/u - $32.00 each
HC6/U Crystals on 200 kHz - available for $24.00 each

HC6/U Crystals on 455 kHz - available for $35.00 each

HC6/U Crystals on 500 kHz - available for $24.00 each

E-mail me with your crystal needs. Click Here.

NOTE:


Most of the FT243 crystals above are remanufactured crystals using original
WW2 era FT243 holders with a newly manufactured, HC49 or HC49US hermetically-sealed crystal
mounted inside. Like all crystals, these should not be used with a grid current
of greater than about 60 mA. They have been used successfully in many typical rigs
like the Heath DX40, HW16, DX100, Ameco AC-1, Drake 2NT, Hallicrafters HT-40, BC610,
Globe King, Homebrew power oscillators, and MOPA rigs etc.

FT243 SOCKETS

FT243 CRYSTAL Sockets - We currently have two types available:
Original style plastic crystal sockets $10 each
Original National ceramic sockets $12.00 each

Click here to purchase crystal SOCKETS

We have NATIONAL RADIO ceramic FT243 sockets available for $12.00 plus shipping.

NEW HC50/U SOCKETS

These are for the newer metal can crystals with pins spaced
about 0.3" apart. They are new metal and plastic sockets usable
all the way up to VHF. Single screw side mount, with solder terminals.
Great for amateur radio homebrew or repairs.
For diagram and dimensions click here.
Available for $2.50 each or 10 for $20.00 plus shipping.

NEW CERAMIC HC6/U SOCKETS

These are for the metal can crystals with pins spaced
about 1/2" apart. These are new, ceramic sockets usable
all the way up to VHF. Single screw mount, with solder terminals.
Great for amateur radio homebrew or repairs.
For diagram and dimensions click here.
They have 0.486" pin spacing. Smaller diameter pins than FT243.
These mount with a single hole.
Available for $4.00 each plus shipping.

Click to E-mail Me - THANKS

CR1A CRYSTALS - CLICK HERE FOR LIST.

DC34 (BC669) CRYSTALS - CLICK HERE FOR LIST.

FT241A LF Crystals - CLICK HERE FOR LIST.

FT171B CRYSTALS - CLICK HERE FOR LIST.

HC-6/U CRYSTALS - CLICK HERE FOR LIST.

HC25/U CRYSTALS - CLICK HERE FOR LIST.

HC49U CRYSTALS - CLICK HERE FOR LIST.

HC50/U CRYSTALS - CLICK HERE FOR LIST.

HC-51/U CRYSTALS - CLICK HERE FOR LIST.

Antique and Large CRYSTALS - CLICK HERE FOR LIST.

Click here for illustrated information on Crystal Holders (Cases) with dimensions

QUANTITY OF 100 FT243 CRYSTAL BLANKS

Now Available!

We have packages of 100 nice clean quartz crystals made for
use in FT243 holders.These are a nice mix from about 1000 kHz up to 8500 kHz.
See photo below:
I will sell the whole bunch for $20.00 plus $6.00 for USA Shipping.

Contact plates are also available; Quantity 100 for $5.00 plus shipping Inquire by e-mail. Click here.

Phenolic insulators are also available; Quantity 100 for $5.00 plus shipping Inquire by e-mail. Click here.

Copper, tin and brass electrodes (mixed) are also available; Quantity 100 for $5.00 plus shipping Inquire by e-mail. Click here.

CR1A CRYSTALS - CLICK HERE FOR LIST.

DC34 Large CRYSTALS - CLICK HERE FOR LIST.

HC-6/U CRYSTALS - CLICK HERE FOR LIST.

80m Band HC-33/U Crystals - (HC-6/U w/wire leads)
3546 kHz - great for CW work.
Will sell them for $6.00 each plus shipping.

Medium sized type CR-1/A (DC30) Crystals etc.
7010 kHz - QTY 3
7080 kHz
10.000 MHz
These are available for $12.00 each plus shipping As seen below, they fit in the inner pair of pin sockets in my crystal bank holders.

Add shipping costs to all prices!

PAYMENTS VIA PAYPAL GLADLY ACCEPTED!


OR: to inquire or buy any item(s):

CLICK HERE to E-mail me

73 from Brian ((( Amateur Radio G3XLQ / AF4K )))

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