- December 6, 2018 at 10:56 am #107688
I would like to post a couple of pictures of new items I built up, but dont know how to post pictures here, can anyone sharpen me up on this?
Radio JoeDecember 6, 2018 at 1:08 pm #107695
Import the picture to your computer. My pictures will do.
Then select copy image and then come to this site and paste and the picture will be posted.
If it is in your pictures on the computer select the icon at the far right here which is insert image and select from the computer.
Two ways.December 6, 2018 at 8:57 pm #107702
I haven’t posted for a while, been busy building some new projects that I want to share with you. One of the projects is this AM transmitter kit which is being sold on eBay by HAM KITS this is the link:
I have built two of these transmitters and one is pictured here. The transmitter works really well and has a nice low end as far as audio is concerned. Frequency is right on the money. The kit comes with two crystals for 10kc spacing and one for 9 kc spacing. I also scratch built a matching loading coil for the transmitter and it tunes nicely with ten feet of antenna wire. The loading coil uses a rod from a discarded AM antenna which slides into a coil form. The wire is 24 gauge wound on a form that is from a paper roll that was used on a receipt machine. The transmitter has very detailed information for it located on the eBay add. I would recommend if you buy this kit that you also download and save the instructions for future use in case you need them. Hopefully I am useful in posting the pictures.
Radio JoeDecember 6, 2018 at 8:59 pm #107704
Another Picture- Loading CoilDecember 6, 2018 at 9:00 pm #107705
ok well I have to make smaller pictures but the group has one to look at anywayDecember 6, 2018 at 9:26 pm #107706
ill work on reducing the size of the pictures sorry about thatDecember 6, 2018 at 9:40 pm #107707
Looks great, what kind of range are you getting? Does it operate at the full 100 mW?
May be a good alternative for the now discontinued SStran kits.December 6, 2018 at 9:54 pm #107709
Went to the item on ebay and was surprised that this seller ships anywhere in the world except China and Canada. Strange.December 6, 2018 at 10:21 pm #107710
With to feet antenna inside the house it covers the yard, This has 45 Mw output. If you use an outside antenna range can be expected to be much better.December 6, 2018 at 10:25 pm #107714
Thats TEN feet of wire in the house in the basement proped up on what ever,not much of an antenna for distance but covers the house and yardDecember 7, 2018 at 4:10 am #107715Carl BlareParticipant
Total posts : 1540
The Ebay listing for this transmitter is marked “Sold – This listing has ended”.
Anyway, your picture of the circuit board looks very neat and well laid-out.
If this transmitter is in short supply it may not be of use to most.
We’ll watch to see if it re-appears.December 7, 2018 at 7:09 am #107718
It will be relisted im sure of that, just do search on AM TRANSMITTER and look for it
Radio JoeDecember 7, 2018 at 8:23 am #107720
Pictures are fine.December 9, 2018 at 10:09 am #107760
The eBay seller has relisted this AM transmitter kit,if interested, do a search for AM TRANSMITTER FOR LEARNING or just AM transmitter and look for it. They have two AM transmitters, one is a simple one that runs with no PLL, I built that one too, and as the title of the listing says “for Learning” I learned that this one isn’t much good, the PLL one is a nice unit- Just passing this info along in case anyone wants to try this transmitter out.
I have also purchased various transmitter boards on ebay that use the BH 1417 chip, I have tested them and can give you some reports on how they turned out if anyone is interested. There is one made on a blue board that is exceptional, it has a 150 Mw output and performs extremely well on the top and bottom set of frequencies. I will enclose some pictures of that project.December 9, 2018 at 11:30 pm #107769
Good to see that kits are still available for those who like building it yourself.
The FM one you showed with the pictures I guess came with the board already assembled but did you rig the rest(RCA jacks, switch, antenna jack, etc yourself or did that come with the metal case as part of the kit?
Kind of restrictive if there are no empty places to go at the top or lower end of the band.
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