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> Crystals qrp ham radio frequencies HC49 & cylindrical
Crystals qrp ham radio frequencies HC49 & cylindrical
Building a small transmitter? Something QRP that fits in an old pen? The 3x8 mm cylindrical crystals make that project easier than ever. These tiny crystals have been put to use in all kinds of low power, 100 milliwatts or less, circuits. These are the same crystals we use in our Time Machine receiver and they work great.
We also carry HC49 crystals. They are our most popular size and are available in several new frequencies. Our HC49s are now being utilized in most of the popular small QRP transmitters and transceivers.The 3880 and 3885, series resonance, HC49 crystals are being offered as support for the "Retro 75" AM transceiver kit another great kit from Dave Benson, Small Wonder Labs.
Below you will find a list of the frequencies available in each size. When ordering remember to note HC49 or Cylindrical with the frequency.
The HC49 frequencies are: 1856, 3530, 3535, 3560, 3575.611, 3579.545, 3880(series resonance), 3885(series resonance),7015, 7030, 7038, 7040, 7042, 7050, 7055, 7058, 7122, 7190, 7195, 7200, 10106, 10125, 10140, 10700, 14058, 14060, 14200, 18096, 21060, 24906, 28060. The HC49 specs are +/- 100ppm, 0/70C, 18pf. The 3885 is only available in HC49, series resonance, +/- 100ppm, 0/70C.
The Cylindrical frequencies are: 3560, 3579.545, 7030, 7038, 7040, 7042, 7190, 10106, 10125, 14060, 14200, 14285, 18096, 21026, 21060, 24906, 28060 kHz. The crystals are cylindrical type +/-100 PPM, 18pF, 3x8 mm. The 3560 and 3579.545 crystals are a bit longer at 3x10 mm.
All of our quality crystals come directly to us from the manufacturer. We order in large lots for each frequency and pass the savings on to you.
NOTE: The crystals listed above are the only frequencies we have in stock at this time. When placing your order please specify the frequency and number of each frequency desired. Mix your order anyway you desire. For example four or five of the same frequency or four or five different ones. Cylindrical or HC49, you can mix them up. FOLLOW UP THE ORDER WITH AN EMAIL INCLUDING THE FREQUENCY, NUMBER OF EACH FREQUENCY DESIRED, AND TYPE, ALONG WITH YOUR HAM CALL SIGN IF YOU HAVE ONE, TO ****@tampabay.rr.com . This will expedite your ordering process. Make that special project, such as the Rock Mite, Tiny Tornado, or Pixie, more versatile with the addition of a broader range of frequencies.
For further information about these crystals please contact us at Expanded Spectrum Systems. You can keep track of our new products as they come available at www(dot)expandedspectrumsystems(dot)com .
