Archive for November, 2016

30 meter operation with the Pastime Projects “6V6 MC 30” transmitter kit

November 18, 2016

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A new coil for the Pastime Projects 6V6 MC transmitter kit (http://www.pastimeprojects.com/) has just been wound for the 30 meter amateur radio band. This was done at the request of an interested fellow radio amateur.
The instructions for winding the 30 meter coil will be added to the 6V6MC construction manual which is included with each new transmitter kit sold.

While not yet used on the air, the transmitter here was checked on an older service monitor, our current Kenwood Transceiver, using a variable DC power supply, a Oak Hills Research WM-2 QRP Wattmeter, and a MFJ-264 dummy load.
The crystal available was a little high (11.000 mHz) but we compensated in coil design for the difference. Amateur frequencies on 30 meters should fall at resonance with the variable capacitor at half scale.

The 6V6MC 30 sounded stable and not chirpy in our tests. Readings included output of 0.5 W @ 100VDC, 2.0 W @ 200VDC, 5.0 W @ 300VDC, and 8.5 W @ 350VDC.

We will watch for on the air results from our radio amateur friends as this is checked out from their stations. 73 Glenn W8JZI for pastimeprojects.

Progress update – Pastime Projects new power supply for “Remember When” 6V6 Transmitter Kit.

November 5, 2016
SAMSUNG CAMERA PICTURES

SAMSUNG CAMERA PICTURES

The prototype parts selection and acquisition is almost complete.  Parts are ordered and stock supplies are being arranged in the shelves.  The Amish have finished the first run of the wonderful oak slats and end blocks.  The length of the new power supply is shorter than the old power supply.  The weight will be less – a good thing when mailing!  The power out is equal to or better than the original design.  Again,  we are staying pretty conservative with 2 or 3 watts out on both 40 and 80 meter cw.

This is a really nice piece of art and will look good in your old tube type ham radio shack.  Now if you have purchased a “Look Ma” transmitter and or power supply from us in the last ten years, and you are interested in the new matching power supply, please contact us ASAP.  We want to get these out and tested in the field,  so now is your chance!   We will make it worth your while one way or the other..     73 Glenn W8JZI for http://www.pastimeprojects.com  or  pastimeprojects(at)yahoo(dot)com