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VU2VWN 40m QRP Transmitter (2,438 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by K.R. Vasantha Kumar, VU2VWN. Published by Thushar Baby, Crystal Publications, Cochin 683565)
Modification of VU2VWN 40m QRP TX for 20m (23 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by K.R. Vasantha Kumar, VU2VWN. Published by Thushar Baby, Crystal Publications, Cochin 683565)
RM-96 Cost effective Transceiver by VU2RM (2,311 kb)
(Courtesy: http://www.qsl.net/vu2upx)
ATS-1 Low Cost SSB-CW Transceiver by
Dr. Ashutosh Singh, VU2IF (3,027 kb)
(Courtesy: SPARK-Journal of the Airwaves Society of India,
Amateur Radio Association, Volume 13 No. 2 1995)
ATS-1 Circuit Diagram ('gif' image): (244 kb)
(Courtesy: SPARK-Journal of the Airwaves Society of India,
Amateur Radio Association, Volume 13 No. 2 1995)
VU2ATN 20m CW QRP Transceiver by Shri Atanu Dasgupta (1,014 kb)
(Courtesy: Electronics For You, August 1987)
7 MHz SSB Transceiver by Yujin Boby, VU3PRX (885 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India, Oct/Dec 2000)
80m QRP Transmitter (167 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: July/Sept 1999)
Ceramic Resonator VFO by Mani T.K., VU2ITI (131 kb)
(Courtesy: SPARK-Journal of the Airwaves Society of India,
Amateur Radio Association, Volume 13 No. 1, 1995)
Direct Conversion Technique by VU2ATN (282 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Apr/Sept 1995)
Gate Dip Meter by VU2PPP (181 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Jan/Mar 1995)
More on Gate Dip Meter by VU2BD (258 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Jan/Mar 1996)
Morse Code Practice Oscillator (154 kb)
(Courtesy: SPARK-Journal of the Airwaves Society of India,
Amateur Radio Association, Volume 12 No. 1, 1994)
Polarity less DC Cable Connection for your Hand Held Transceiver (77 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Oct/Dec 1998)
High Current Power Supply by VU3NSH (326 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Oct/Dec 1999)
Hobby Electronics by L.V. Sharma, VU2LV (580 kb)-
Basics of DC & AC Electricity simplified for the beginners by VU2LV
(Courtesy: Zero Beat-Journal of
Society for the Promotion of Amateur India:
Vol II, August 1987 No.9)
Beat Frequency Oscillator (BFO) by VU2ITI (387 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)
Frequency Counter by VU2ITI (799 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)
RF Power Measurement by VU2BD (100 kb)
(Courtesy: Calcutta VHF Amateur Radio Society Newsletter)
RF Probe by VU2ITI (86 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)
SSB Exciter by VU2ITI (1,395 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)
SWR Bridge (108 kb)
(Courtesy: Calcutta VHF Amateur Radio Society Newsletter, Issue # 8, Diwali 1993))
Crystal Tester by VU2ITI (62 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)Equivalent Series Resistance Tester by VU2ITI (70 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., Published by Thushar Baby, Crystal Publications, Cochin 683565)Ceramic Resonator VFO by VU2ITI-II (499 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)Power Supply for VFO by VU2ITI (84 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)A Gain Compensator Circuit by VU2ITI (97 kb)
(Courtesy: Easy to Build HAM RADIO PROJECTS VOL 1 by Mani T.K., VU2ITI, Published by Thushar Baby, Crystal Publications, Cochin 683565)20 Watts RF linear Amplifier for 2m by VU2RAR (82 kb)
(Courtesy: Calcutta VHF Amateur Radio Society Newsletter)Butterfly Handi Finder for Fox Hunting by VU2KFR (142 kb)
(Courtesy: Calcutta VHF Amateur Radio Society Newsletter)
Dip Meter by VU2MMZ (199 kb)
(Courtesy: Radio-Journal of FARSI, Federation of Amateur Radio Societies of India)40m VFO controlled QRPP TX by VU2SCN (349 kb)
(Courtesy: Radio-Journal of FARSI, Federation of Amateur Radio Societies of India)
Solid 20 Watts Transmitter by VU2SV (564 kb)
(Courtesy: Radio-Journal of FARSI, Federation of Amateur Radio Societies of India)
Tinker Dip-a Homebrew beginning by Shri Ranjan Chakrabarty (451 kb)
(Courtesy: Electronics for You, August 1987)
VHF Antennas: Construction and use by George Philips, VU2GT (320 kb)
(Courtesy: Ham Radio News-Journal of ARSI, Jan/Mar 1995)
2m Yagi Beam Antenna by N.S. Harisankar, VU3NSH (206 kb)
(Courtesy: Ham Radio News-Journal of ARSI, Apr/Sept 1996)
The Ionosphere (simplified) by WB8IMY:
an useful article for the HF novice (101 kb)
(Courtesy: Ham Radio News-Journal of ARSI, Jan/Mar 1995)
Rockbound IF Oscillator by N.S. Harisankar, VU3NSH (46 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Apr/Sept 1995)
International Amateur Radio Union (IARU)
on promotion of Amateur Radio (310 kb)
(Courtesy: Ham Radio News-Journal of Amateur Radio Society of India: Jan/Mar 1996)
VU2VWN 40m AM/CW QRP Transmitter (742 kb)
(A brief write-up reproduced from "QSP" along with circuit diagrams.
Provided as a complement to the download provided above)
2m FM Transceiver by VU2IF (1,744 kb)
(Courtesy: A write-up by Avinash Missra, VU2EM, provided along with the 2m VHF kit brought out by Calcutta VHF Amateur Radio Club in 1992)
2m Power Amplifier by by VU2EM (246 kb)
(Courtesy: A write-up by Avinash Missra, VU2EM, published in the
Calcutta VHF Amateur Radio Society Newsletter 'On the Air')
10.7 MHz Filter for 2m FM Transceiver by VU2EM (127 kb)
(Courtesy: A write-up by Avinash Missra, VU2EM, published in the
Calcutta VHF Amateur Radio Society Newsletter 'On the Air')
Antenna Change-Over for 2m by VU2EM (123 kb)
(Courtesy: A write-up by Avinash Missra, VU2EM, published in the
Calcutta VHF Amateur Radio Society Newsletter 'On the Air')Get rid of that roar by Rama Mohan Rao, VU2RM (221 kb)
(Courtesy: A write-up by Rama Mohan Rao, VU2RM, published in the
Calcutta VHF Amateur Radio Society Newsletter 'On the Air'. The write-up was a follow-up related to a problem with the 2m FM Transceiver)Rigging up your 3359 by Indranil Majumdar, VU2KFR (344 kb)
(Courtesy: A write-up by Indranil Majumdar, VU2KFR, published in the
Calcutta VHF Amateur Radio Society Newsletter 'On the Air'. The write-up was a follow-up related to a problem with the 2m FM Transceiver)Reproduction of the articles/circuits is to encourage homebrewing without any commercial intention. If you are not an Amateur Radio Licencee, you need to take the licence before trying the transmitter/tranceiver circuits.
Acknowledgment:
Shri Sahruddin, VU2SDN, Amateur Radio Society of India (ARSI), Shri Atanu Dasgupta, VU2ATN-who has encouraged me to compile the homebrewing related information, Mani T.K., VU2ITI (Writer of Easy to build Ham Radio Projects Vol 1 published by Tushar Baby) Radio (Journal of FARSI), Ham Radio News (Journal of ARSI), Spark (Journal of Airwaves Society of India/Amateur Radio Association), On the Air (Newsletter of Calcutta VHF Amateur Radio Society),
Glimpses of amateur radio journals in India!
Page maintained by Sandeep Baruah, VU2MUE
http://www.qsl.net/vu2msy http://www.vigyanprasar.org/ham
Last updated on 07.06.2002
E-mail: [email protected]No of hits since June 06, 2002
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