dinsdag 21 juni 2011

An experimental 80m CW transceiver

Freq: 3.560 MHz

30m QRP-Transceiver

Freq: 10.106 MHz

maandag 20 juni 2011


Have you see a new
MAS or Mini-transceiver schema
     please...... let me now

zondag 19 juni 2011


The QRP-CONTEST-COMMUNITY (qrpcc)               Nov 1st, 2007
c/o Dr.Hartmut Weber, DJ7ST
Schlesierweg 13
e-mail: dj7st@darc.de

               Simple QRP (MAS-) Homebrew Projects

Dear QRP friends,

the QRP-Minimal Art-SESSION (MAS) at Ascension Day is an eye-winking
challenge to make qso with rigs as simple as possible. You are invited to
prepare your participation with a TRX (resp. TX & RX) out of not more than
100 components (Class A) or a TX out of not more than 50 comp.(Class B).

Normally you have to send a circuit diagram of your station with
components numbered along with your log entry.

BUT: Here is an updated list of articles describing equipment which I
found suitable for the QRP-MAS.
If you will use a TRX, TX or RX listed here it will NOT be necessary for
you to send a circuit-diagram along with your MAS entry:

           (what makes especially logs per e-mail much easier)

So, instead of a drawing e.g.just tell: "My TX was a Mighty Mite with 8
components like in SPRAT 105". Minor modifications also can be described by

Of course the equipment listed here is fine with OQRP-Contest and HOT-Party
as well !!

 SPRAT               ARTICLE                                 COMPONENTS

 131, p 21     An Acorn Valve Transmitter (SM7UCZ)               12
 131, p 20     Acorn Valve Transmitter on 40 (KF4YJQ)             9
 131, p 6-7    Maidenhead-Pixie Re-Visited (no sidetone)(G4UMB)  49
 130, p 4-5    The TwoFer: A simple TX for 6 Bands  (KI6DS)      34
 129, p 10-11  The SP-1, a simple xtal ttx (GM3OXX)              12
 129, p 26-27  "All Tubes" 80m CW QRP TRX  (HB9FAE)              74
 119, p 6      The Marsh Transmitter (G3YVF)                     24
 119, p 7-8    The Marsh Receiver (RXII) (G3YVF)                 34
 119, p 10     An 0-V-0 Receiver (with 6K7/EF39) (PA3CRC)        16
 119, p 19-23  The 'Lamdaette" QRP-TX (no mod., Q3 for keying)   24
 118, p 10-11  A 3.5 MHz QRP TX with Linear Amplifier (SM7UCZ)   29
 118, p 20-21  The "Micro-Scope" (Simple DC-RX) (RV3GM)          37
 118, p 22-25  Viking-500 Pocket CW-transmitter (HB9CKR)         29
 117, p 14-17  The Six Sockets Gem - My QRP Fun TX (CO2KK)       15
 116, p 7-9    The G3SYC Battery Valve Transmitter (G3SYC)       23
 116, p 12-13  The TOFF Simple Superhet Receiver (VU2OWF)        30
 114, p 12/13  12BH7A Push-Pull Transmitter (JA9MAT)             10
 112, p 4-7    My First QRP station: Transceiver Unit (RV3GW)    42
 112, p 4-7    My First QRP station: Direct conv. RX  (RV3GM)    26
 112, p 8-11   A Simple CW Transmitter (9A9RA)                   47
 112, p 12/13  The FRESCO Transmitter (VU2OWF)                   22
 112, p 18-20  The PP2 Transmitter (GM3OXX)                      13
 112, p 21-24  The "Sardine Supergainer" (40m RX) (G4DFV)        70
 111, p 6      Two-Tube Reg. RX for Low Voltage (DC8KP)          13
 111, p 12     The HIBRYDUS Syncrodyne Receiver (IK2VTU)         39
 110, p 5      "Lauser-Plus" Two Band Mixer (DK2RS)              12
 110, p 8/9    The Wurzel 20, 40, 80m Regen. TRF RX (G3PCJ)      43
 108, p 22     An Experimental Transceiver - the "ET-1" (W2UW)   17
 108, p 26     VK7LF's 160m QRP Transmitter                      17
 107, p 14     ONER Receive Conversion (RV3GM)                   12
 107, p 20     A Resonator VXO (VU2ITI)                          20
 106, p 12     The DL93 Transmitter (SM7UCZ)                     23
 105, p 35     The Michigan Mighty Mite (in Novice News)         8
 105, p 3      Smid-Gen CW/SSB Receiver (G4KJJ)                  12
 102, p 22f    An Inexpensive Filter and IF Ampl.(GM4ZNX)        24
 101, p 6      7-14-21 MHz Direct Conversion Receiver (RK3ZK)    41
 100, p 6      The VU-Mitter (VU2OWF)                            20
  99, p 17     OK2PZL-Transceiver (see also Nr.98, p 4)          55
  98, p 34/35  PIXIE 2 (as TX)(I7PKY)                            23
  97, p 4/5    The JBS Transmitter (GM3OXX)                      20
  97, p 8/9    MB4 Portable SW-RX (G0KJK)                        28
  93, p 6/7    The Transmitter Key (SM7UCZ)                      14
  92, p 3      Rock's "Easy Three" Receiver (W9SCH)              20
  92, p 20-23  A DC-RX for Beginners (SM7UCZ)                    50
  91, p 4/5    The FOXX2 - An Old Favourite Revisited (G3RJV)  19 (as TX)
  91, p 22     The Revival TX/RX (DJ0GD)                         33
  90, p 20/21  The AELVA - A Swedish Pixie (SM7UCZ)            20 (as TX)
  88, p 12/13  The VU-Mini TX (TRX)  (VU2KLA)                    20
  88, p 14     The PIXIE Goes On.... (G3LHJ)               14(21 as TRX)
  88, p 16/17  The Norwich Transmitter (G3WCE)             34 (no modul.)
  87, p 24     Simple "Common Parts" 80m TRX (VU2ITI)            18
  87, p 35     Top Band Novice TX (in Novice News)               17
  86, p 21     The FROTH 1w Transmitter (G4VPF)                  40
  84, p 12/14  The Silver Tern Receiver Revisited (SM7WK)        26
  83, p 25     One Valve Transmitter (G3BMO)                     24
  82, p 4/5    The HF9 TRF Short Wave Receiver (G0KJK)           30
  82, p 6/7    The MONGREL QRP CW Transmitter  (G0KJK)           26
  82, p 17     The KLAT 40m TX  (VU2KLA)                         12
  82, p 27     A 30m QRP CW-Transmitter (G3FCK)                  31
  82, p 23     80m Valve CW Transceiver (RK3ZK)                  47
  82, p 36     Ten Minute Transmitter   (G4RAW)                  10
  74, p 9      A Multiband Valve Transceiver (UZ3ZK)             74
  73, p 4      A Two Transistor Communic. Receiver (G3RJT)       19
  73, p 5      The Ultimate KISS Transceiver (G3RJT)           19+47
  72, p 4/5    The Phoenix TX (W3TS)                             45
  72, p 20     The MICRO-80 Mini-TRX (RV3GM)                     20
  71, p 11/12  The NAT-TX (GM3OXX)                               14
  71, p 14     The K4TWJ QRP Pen                                 11
  67, p 3      Computer Board 80m TX (G4RAW)                     27
  67, p 9      80m Valve DC-RX (G0ILL)                           52
  66, p 10/11  The Pebble Crusher 2 (W1FB)                       25
  65, p 16     BOPP 6 - TRX (G3MY)                               50


              4.06, S.26-29   QRP-Sender auf Universalplatine (DL7UWE)
              4.03, S.7       Ausprobiert: DC-RX mit Dualgate-MOSFET
              4.03, S.13      3T3 - Geradeausempf. mit 3 Trans. (DK2RS)
              1.03, S.39-41   "The99er" -ein QRP-TRCVR fuer 80m (HB9XY)
              2.00, S.22      Technik in QRP-MAS (DL9OE)(add plate choke!)
              4.99, S.23      BODAN Telegraph (2), 80m QRPP-CW-TX (DK2RS)
              3.99, S.17      Einstufiger QRP-Sender (DL7UWE)
              2.99, S.14/15   Ein Nicht-Nur-Nostalgie-VXO (DJ7ST)
              1.99, S.8       Bodantelegraph (1), Ein 80m QRP-CW-TX (DK2RS)
              1.99, S.12      QRP mit wenig Aufwand (DL7UWE)
              1.99, S.35      QRPP aus der Elbug (DL7UGN)
              4.98, S.17/18   QRP-VXO-Sender (DK6SX, Doublette in 2.98)
              1.98, S.4/5     Einfacher VXO-Sender (DL5WX)
              1.98, S.19-21   80m-QRPP-TX, ein Aufsteiger (DF2OK)
              1.98, S.24/25   Breitbandiger QRP-Sender (DK4SX)
              1.98, S.28      Der Pixie-Transceiver (DL2FI)
              2.97, S.22      Zehn-Minuten-Sender (DF9IV)


              10/07, S.723-25  Verbessert: CW-Transc. fuer 80m (DG0SA)
              4/07, S.252-53  Roehren-Audion mit kl. Anodenspannung (DK7JD)
              1/06, S.26-29   CW-Transceiver fuer 80m (DG0SA)
             10/02, S.741f    Beispiele von Geradeausempfaengern (DK2RS)
              9/02, S.674     QRP-Sender mit wenig Bauteilen (DJ1ZB)
              3/02, S.189     Lauser - Konzept u. Schaltung... (DK2RS)
              2/02, S. 99     Bodantelegraf: QRPP-CW-TX f. 80m (DK2RS)
             10/99, S.834     Simpler KW-Minitransceiver (OM2ZZ)
             12/98, S.940     Einfacher ....QRP-CW-Sender (DJ3RW)
              3/98, S.214-17  Komfortabler 80m-Peilsender
              5/97, S.368     80m-QRP-Sender (Bauzeit: 1 Wochenende)


               .43/44, p 10     Vysilac pro zavod QRP-MAS (OK1DXK)
                39/40, p34ff.   KV prijimac (OK1DZD)
                39/40, p45      1 Tube TX (SM0VPO)
                39/40, p47      Micronaut (OM2ZZ)
                37, p 27        Audion pro pasmo 80m (OK1MRA)
                36, p 42        Jednoduchy QRP transceiver 80m (Podle RADIO)
                34, p 26        TX 14 MHz (OK1FVD)
                32, p 21ff      A simple CW TX for 160, 80 and 30m (OK1DLY)
                31, p 17f.      Primosmesujici prijmac pro 160m  (OK1HDR)
                29, p 22        VXO for 30m QRP TCVR by DK7ZB
                27, p 26f       QRPP TX (OK1MKX)
                26, p 18        DC-RX (OK1FVD)
                24, p 15        QRPP TX 240mW (OK2BKA)

(no younger issues of OK-QRP-Info available here, sri)

                                 - - - - - -

Remark: If your counting leads to oher results remember that ALL output
         configuration counts as 3 parts etc.

Nice homebrewing and cuagn!

73/2 "Hal", DJ7ST, G-QRP-C # 110



11th Q R P - M I N I M A L A R T - S E S S I O N


QRP-CONTEST-COMMUNITY (qrpcc)                        15-March-2011
c/o Lutz Gutheil, DL1RNN
Bergstrasse 17
D-38446 Wolfsburg
e-mail: mas@qrpcc.de
web: http://www.qrpcc.de

                    11th QRP-MinimalArt-SESSION

(TNX to Eddi, DK3UZ, for translation)


(William of Occam, philosopher & theologian, Oxford/Munich 1290-1350)
(an early QRPer?)

To reach one's goal with minimal consumption of materials demands
a feeling for essentials and encourages the art of self-restraint.
In the spirit of an active -and winking- dealing with elementary ham-radio
the QRP-CONTEST-COMMUNITY invites you to take part in the

   11 . Q R P - M I N I M A L - A R T - S E S S I O N Â  ( qrp-mas )

This is a proposal of new MAS rules from 2011 on.

Challenge: Contacts shall be made using simple rigs built by the operator
           himself, and from as few components as possible.

Date:     2nd June 2011 (Ascension Day), 1600-2200 UTC

MODE      Single-OP CW, output <5W or input <10W

QRG:      80m-CW-subband, recommended: Around 3560 kHz
          40m-CW-subband, recommended: Around 7030 kHz / 7160 kHz

CALL:"cq mas" or simply "mas de"

CLASS A:  RX+TX or TRX consisting of not more than 100 components
CLASS B:  TX consisting of not more than 50 components, Â RX as you like
CLASS C:  RX+TX or TRX consisting of not more than 100 components,
          max 1 integrated circuit!

EXCHANGE: RST/Class and number of components, e.g.: 559/B25
          feel free to exchange name and small talk)

QSO-Points: A QSO scores 1 point. The adjudicator will award 4 points for a
            QSO with another MAS-stn whose log has been received.
            Points from both bands will be added.

BONUS:    You will get bonus-points in percentages if you stay below the
          limit of components permitted for your class, e.g. using a TRX
          made from only 50 components in class A (max. 100) will boost
          your final score by 50%. The same goes for a TX of only 25
          components in class B (max. 50). A TRX made from 80 parts or
          a TX made from 40 parts will yield a bonus of 20%.

Components are resistors, capacitors, coils, diodes, transistors, valves
(multiple sections count per section, e.g. ECL86 = 2), crystals, ceramic
resonators etc. Commercially made filters count one per pin.

Any selective network in the TX output stage will be assumed and counted as a
3 parts PI filter. For a better suppression of harmonics you are free to use
more components - they will not be counted. RX input networks will also be
counted as 3 components.

These parts do not count:

Plugs, binding posts, knobs, sockets, housing, switches, relays, power supply,
headphones, speakers, key, antenna, etc.
Multiple coil windings on a SINGLE former count as 1 part.

ICs are permitted in classes A & B as long as YOU(!) can give a specification
of HOW MANY single components are integrated (e.g. LM386 = 20).

In class C a single IC is permitted. All connected pins count, but ground
and supply voltage pins only once.

Participation in class B is possible of course, if the RX part of a TRX uses
more components than permitted for class A.

LOGS: Columns: UTC, call of station worked, sent & received exchange.
      You are required to include a circuit diagram of your rig with
      parts numbered from left to right, and an IC data sheet if
      applicable (only in class A and B).

      Please make sure to include the circuit diagram, I don't have any of
      Hartmut's file.

Deadline: Logs should be sent not later than a fortnight after the QRP-MAS to

                      Peter Haensel, DL6CGC
                      Hoetenslebener Str. 15
                      39393 Hoetensleben

                      mail: "mas at qrpcc.de"


IARU Region 1 QRP Centres of Activity

160m 80m 40m 30m 20m 17m 15m 12m 10m
CW 1836 3560 7030 10116 14060 18086 21060 24906 28060
SSB 3690 7090 14285 21285 28360

Enkele MAS Meettoestellen


Enkele MAS Rx

Enkele MAS Rx-Tx

35 onderdelen

12 onderdelen
14 onderdelen

14 onderdelen
20 onderdelen

13 onderdelen


DSB-Transceiver Japans