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CRK-10A CW Transceiver Kit Unit Price: 55 USD including slow air shipping.
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The classic crystal controlled CW transceiver with great performance is back! Subscribe to https://groups.io/g/crkits to join the discussion and view: CRK-10A eHam product review average rating 5.0/5.0
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CS-xxV SSB Transceiver Kit Unit Price: 85 USD (mic is not included) including slow air shipping. You can choose from CS-40V and CS-15V. You can use your ICOM HM-36 hand microphone for this kit.
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We introduced the KN-Q7A SSB transceiver kit in October
2011, and it was a big success. Now, we bring it
back with a few modifications. We also newly added 15-meter called CS-15V.
Here, V in CS-xxV is for VXO. There is no DDS, MCU, or anything else digital.
All analog, all traditional. The IF crystal filter is improved with a better impedance matching. The MC1350 replacement is a tiny module of a dual gate FET. The gain is lower, the gain control is counterclockwise [of course, you can modify it back], but it is loud enough for the speaker microphone if you are using a full sized antenna. Subscribe to https://groups.io/g/crkits to join the discussion and view: [The previous generation KN-Q7A was widely introduced by CQ Amateur Radio magazine in US, CQ Ham Radio magazine in Japan, RadCom magazine in UK, Amateur Radio magazine in Australia, and some other brief introductions in other countries since 2012. KN-Q7A eHam product review average rating 4.8/5.0 KN-Q7A manual for PCB V2.2, including schematics and partlist for 80/75/40/20m ]
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13 Transistor Transceiver for Digital - 7074 USB -
NEW! Unit Price: 65 USD including slow air shipping. All the parts and case are included.
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Can you build a 1-watt FT8 SSB transceiver by only 13x 2N4401 transistors? This thread contains all the information about this traditional kit of all through-hole parts. https://groups.io/g/crkits/topic/85889614#3649 Dimensions: 103mm depth x 88mm wide x 38mm
height Schematic: Inspired by VK3YE Knobless Wonder and K1SWL Warbler with improvements Subscribe to https://groups.io/g/crkits to join the discussion and view:
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D4D DSB Transceiver Kit for Digital Mode Unit Price: 45 USD including slow air shipping. All the parts and case are included. 
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D4D stands for DSB transceiver for Digital mode. It is a
very simple and low cost crystal controlled 1-watt transceiver designed specially for FT8, FT4, or JS8CALL and etc.
VOX is included, so you just need audio cables to work with your
computer or Raspberry Pi.
Please understand: Due to the nature of DSB mode, the assembled kit cannot meet bandwidth requirement of 3kHz, so it is designed to be QRPp, and it is not recommended to use it often, especially when you have ham neighbors. Dimensions: 103mm(L) x
66mm(W) x 27mm(H), not including protruding parts Subscribe to https://groups.io/g/crkits to join the discussion and view: D4D eHam product review average rating 5.0/5.0
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R3500D
ARDF Receiver
Kit Unit Price: 45 USD including slow air shipping. Earbuds are not included.
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R3500D is the upgraded version of the well known PJ-80
80m direction finding direct conversion receiver kit. 3500~3600 kHz
coverage. Color is random. Subscribe to https://groups.io/g/crkits to join the discussion and view: Note that the LO frequency is at half of the working frequency. It is by design, no worries. PJ-80 eHam product review average rating 5.0/5.0
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Documents Archive
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KN-Q7A manual, quick guide, part list, and drilling template
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CS-series Detailed Manual with Photos, Download product photos ,Arduino Sketch for CS-17/15, CS-20 (updated), CS-40
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Sandwich digital VFO Detailed manual with photos, Arduino Sketch for KN-Q7A 80m, 40m, and 20m band, and Detailed manual in Spanish by Jon, EA2SN
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CRK-10 manual including part list, quick guide in English
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Choc perfboard Build a SSB transceiver with Choc Perf Board
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HT-1A User manual, kit building instructions and schematics in zipped format
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PJ-80 manual, supplement manual by CRKITS and part list (with manual errata) in English
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Gipsy Portable Dipole Antenna manual in English
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Join our group at https://groups.io/g/crkits to be able to access manuals and other documents and photos