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The view from the road approaching my QTH at Corona De Tucson a few miles southeast of Tucson, Arizona.

Here is my QTH at Corona De Tucson , Arizona.   Thats a 40 ft. pole holding up the center of a 80 meter half wave wire that is center fed with 600 ohm open wire line.   This type of antenna is sometimes called a "double Zepp" when used on higher bands.    A close up  view is in the photo below.   The antenna wire ends are 10 feet high.   Also,   At 30 feet high (in the center) is a 40 meter inverted vee fed with 450 ohm "window line".  You can see it in the left part of the below photo. 

   The above is one of the  3 tuners in use here.   This one was made by W8VG and  tunes the open wire feeder line to the big  Double Zepp antenna.   The others are a Johnson KW Matchbox and a Dentron Super tuner+.

The above are my 1937 Hallicrafters SX-15 Sky challenger and a 1954 Johnson Viking II transmitter.


The above photo shows my 1961 Hallicrafters SX-111 receiver and 1954 WRL Globe Scout 65  transmitter.  


Here is my 1950 National HRO-50T and another Viking II. Thats an MFJ-422 / Bencher keyer.   My modern Icom transceiver  is off in the corner.   That's a homebrew DDS VFO (based on a kit by N3ZI) on theViking transmitter.


   The above are my 1947 National NC-173 and the Globe Scout 65.


Above are  my 1956 Hallicrafters SX-100 and new Icom IC-7300 transceiver.   I use the Icom every day for CW.

The above is a close up of my new Icom IC-7300 that I added May 27, 2016.   A very nice little rig!

Here is my Collins 75A4 receiver.   It has been restored by Howard Mills W3HM.   Please note the power line converter shown here between the 75A4  and the metered power supply.  It is a 6.3 VAC 20 amp. filament transformer with its secondary wired in the "bucking " direction  in series with the incoming power line to reduce the modern high line voltage down to 116 VAC as shown on the meter mounted in the front of its chassis.   The output lower voltage is available at a  duplex AC outlet mounted on the chassis top.   My old gear likes this lower voltage better.

   The above is a photo of my very nice 1946 National HRO-5TA1 receiver.  I bought one of these in 1955 and used it very successfully for ten years.  It is really good to have an old friend back again.   I bought this one from George K1ANX in December, 2015.

   The above  is a very fine 1958 Hammarlund HQ-160 formerly owned by K7BDY.  It works very well.


The above are my very fine Drake R4A and T4X from 1965.

   Here (above)  is my 1979 Ten tec Omni-D.   This is another fine restoration by Dick W7KDL.

The above are  the CW only Heathkit twins:  The HR-1680 receiver and HX-1681 transmitter. That's a 1961 Vibroplex Original "bug" plugged in to the transmitter.


This is a very nice 1958 National NC-303 that I added in April, 2017.


   Here is my 1943 Hallicrafters BC-610 E transmitter.   It uses a 250TH tube in the final amplifier and is modulated with a pair of 100TH tubes.  It is a 1938 model HT-4 adapted to military use in WWII.



   I use a homebrew (by K0ETD)  VFO for the BC-610.

The above are a 1938 Hammarlund HQ-120X receiver and the speach amplifier / control box for the BC-610 transmitter.




A recent photo of the main operating desk. Rigs (from left to right) are An HRO-50T, modern Icom trnsceivers, Johnson Viking II,  Heathkit SB-1000 amplifier, Johnson KW MatchBox with a  Dentron tuner, SWR/power meter on top and with a cat under the table.     

Here is Chipper - right in the way as usual. That's a Hallicrafters SX-96 behind him.    

                                                       Chipper and Portia "helping" me at 2 AM on 40 meter CW.

Chipper supervising my bench work.


The above is  my desk with "lilly" resting (on my computer of course)

This is the reason for my interuptions during CW QSO's.   My new kitten "Lilly" needs attention.


These photos show some of  the vintage radio setups and cats at AJ7O. The AM transmitters are two mid-1950's Johnson Viking II's, a big 1944 BC-610-E  and a 1954 WRL Globe Scout.    My cat Chipper loves to sleep on the warm transmitters and likes to hang out here. As you can see, I collect and fix up old gear.   I recently added  an  Icom  IC-7300 transceiver for its modern capabilities.

My main antenna is a 80 meter 1/2 wave inverted vee center fed with open wire line at 40 ft. high. We used to call this antenna type a "double zepp". It is tuned to 80 through 10 meters with either a Johnson KW Matchbox or a large homebrew "bread slicer"  tuner to the balanced feed line.  For a radiation pattern change I can switch to a 40 meter inverted vee 30 feet high set up at right angles to the larger antenna.   It is fed with 450 ohm window  line and tuned with a Dentron Super Tuner plus.   I also use a Cushcraft AR-10 (Ringo) on 10 meters.

My history:

I was first licensed in 1953 as WN9ZQC in the Chicago area and became W9ZQC upon earning my General Class license in 1954. After moving to Southern California in 1960 I was issued WA6MGO and then in 1963, because I had the Extra Class license, I was issued W6FTQ. I moved to Arizona in the late 1970's where I was issued my present AJ7O callsign. I work about 90% CW .

I've been inactive for the past few years. I just got back on the air in July, 2010 and I'm having a great time mostly on CW on all bands and 75, & 40 AM phone.

My QSL is okay direct only . My e-mail is w6ftq@yahoo.com

8357821 Last modified: 2017-09-29 09:24:28, 8733 bytes

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QRZ Logbook Summary for - AJ7O
Latest Contacts for AJ7O at QRZ.com
dedateband mode grid Country op
YC8UTI 2016-03-07 40m CW PJ34ia Indonesia Arfan M. Rauf S.Kom Iwan
YC8UTI 2015-10-12 40m CW PJ34ia Indonesia Arfan M. Rauf S.Kom Iwan
KA3IZE 2015-10-06 40m SSB EM93lr United States JOHN W GRAVES
K0YY 2011-04-22 20m CW DM79hp United States ROGER J KRAUTKREMER
XE1ZMZ 2011-03-12 40m PSK31 EK09eg Mexico Harry Guadarrama
TI5KD 2011-02-20 15m CW EJ79vx Costa Rica CARLOS (KEKO) DIEZ
SM4OTI 2010-12-03 40m CW JP70lr Sweden Stefan Knutsson
DS5USH 2010-10-02 40m CW PM37nv South Korea JOO HO NAM

Book Totals: 8 qso's   4 confirmed Get a free logbook at QRZ.COM

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Wed Nov 22 10:53:29 2017 UTC
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