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81
Transceivers / Re: HW-7 mods
« Last post by ac9xh on February 13, 2022, 02:07:23 UTC »
I love the hw-7 and hw-8
so if anyone here has one to get rid of let me know. I have several articles on mods for both these rigs

73
David
ac9xh
82
Builder's Corner / Re: Tarnished Silver as a Crystal Radio Detector
« Last post by ac9xh on February 13, 2022, 01:25:45 UTC »
i have used gilette shaving blades, lead melted with aluminum, and also some iron.
not all gave good performances but all were able to perform as a PN junction for rectification,detection.

depends on your ground and the quality of your crystal headphones.

73
David
ac9xh
83
Builder's Corner / Re: Where to find cases for kits
« Last post by ac9xh on February 13, 2022, 01:03:02 UTC »
hey everyone,
I usually use tin cans ,tuna cans, canned chicken,for most of my cases for the qrp rigs. they are free,durable and strong.also walmart has plastic containers for food and what not. great for see thru project cases

73
David ac9xh
84
Telegraphy / Re: how many cw ops?
« Last post by ac9xh on February 13, 2022, 00:55:19 UTC »
Does everyone have a problem sometimes counting the dits and dahs?
even after 30 some years i still do it off and on and it slows me down.
it usually hits me after 25 wpm.

73
David
ac9xh
85
Telegraphy / Re: how many cw ops?
« Last post by ac9xh on February 13, 2022, 00:51:21 UTC »
I use CW mostly  and have once or twice used qrp ssb but when you need to build a simple rig to get a message out, Cw rig comes thru 100%.
2 to 3 transistors a crystal and variable cap to pull it a little ,or varicap diodes with a potentiometer for full bandwidth.
no need for a bunch of chips. Now if you are using chips, 2 can build a nice little transceiver. ne602 oscillator chip and a lm386 audio output chip. add some parts,wala!!!.Also if a ham is just starting out, CW QRP is the way to go.

73
David
ac9xh
86
Telegraphy / Re: how many cw ops?
« Last post by ac9xh on February 13, 2022, 00:38:19 UTC »
ive been CW since late 80s. In fact most of all my rigs are CW only and some ive disabled the ssb sections.
Using CW is a second language which covers all continents and cultures.
what language can you speak where everyone on the planet can understand you with just a weeks worth of studying?

CW

DAvid ac9xh
87
QRP / Re: GREAT QRP INFORMATIONS OF INTEREST AND UP TO DATE LINKS
« Last post by ac9xh on February 13, 2022, 00:31:29 UTC »
great links most all opened up and have alot to read.

great job on the list. keep it up!!!

David
ac9xh
88
QRP / qrp kits
« Last post by ac9xh on February 13, 2022, 00:19:37 UTC »
Anyone have any qrp kits built or unbuilt for sale? or what do you all operate?

lets rock this place and bring in more people!!!!

73
David
ac9xh
89
QRP / Re: Is QRP Club still QRV?
« Last post by ac9xh on February 12, 2022, 21:36:50 UTC »
Im here,
ac9xh

any time you all need indiana usa, im on ft8 30 meters or 30 meters CW.
also 40 and 20 ft8 all qrp also.

I also do eqsl  Im a member
90
QRP / alot of activity on 30 meters
« Last post by ac9xh on February 12, 2022, 20:36:39 UTC »
Lots of CW and ft8 on 30 meters for awhile. from about 10105khz to 10128khz lots of CW. I been running FT8 on 30 meters and quite a few DX stations have been on this band.

73
David
ac9xh
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