Possible error on Bayou Jumper
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Kenneth Ketner
The manual calls for L2 twice, but apparently the first l2 is a 1 uh near r17, but the second is not l2 but is l4 470 uh which is called l4 on the board but marked there as 1 m near c19. Ken Ketner KA5ELD PO Box 65135 Lubbock, TX 79464-5135 Sent from my iPad |
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Paul Ross <deadgoose@...>
Ran into same issue. The 1000 micro H goes in the keying circuit.
Got mine fired up and testing/calibrating it today. Solid 4.8 watts into my dummy load. Took a tad of fiddling with the 19 turn winding to get where I wanted it. Now tunes 7.000 - 7.156. Need to put together a calibration chart to laminate and stick in the lid. More crystals coming Tuesday. Receiver is hot! I started this game with regenerative receivers. Can't beat them for ease of use. 73 /paul W3FIS |
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Jim, N5IB
I'm trying to "do my bit" to help in sorting out any remaining issues in the Bayou Jumper manual and other documemts. I'm looking at rev1.1 of the manual and the 12/14/2016 version Bill of Materials.
The references to L2 and L3 appear to be correct in both documents, as well as on the schematics.... but there's no telling what my tri-focalled eyes my be seeing or missing :^)) e-mail me privately n5ib (at) juno (dot) com and you can point me to the problem areas. Jim, N5IB ---In 4sqrp@..., <klaine@...> wrote : The manual calls for L2 twice, but apparently the first l2 is a 1 uh near r17, but the second is not l2 but is l4 470 uh which is called l4 on the board but marked there as 1 m near c19. Ken Ketner KA5ELD PO Box 65135 Lubbock, TX 79464-5135 Sent from my iPad |
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* On 2017 01 Jan 15:47 -0600, n5ib@... [4sqrp] wrote:
I'm trying to "do my bit" to help in sorting out any remaining issuesI am working from manual Rev 1.1 and it notes the value of L2 is 1 uH and L4 is 470 uH and has a notice in yellow above that table that says, "Notice that the value of L4 marked on the PCB os 10.m instead of the 470u supplied." I am at this step right now which is why I checked back to this thread. I appears the confusion is the marking on the PCB and not in the manual. That color markings in the manual appear correct with the parts supplied, although the "brown" band of the 470u looks more red to me. 72, Nate -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Ham radio, Linux, bikes, and more: http://www.n0nb.us |
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Don Wilhelm
Nate,
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Get a female associate to look at the color bands. Generally their color perception is much better than for us males. My XYL claims that my box of crayons is limited to 8 colors while hers has a full compliment of 64! 73, Don W3FPR On 1/2/2017 3:59 PM, Nate Bargmann n0nb@... [4sqrp] wrote:
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Jim M. <hotrods.2@...>
Hi, Jim KD0MXD, Starting on my radio. So L2 and L4 are to be switched? Thanks, 73/KD0MXD/ Jim
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Nope. L4 is just marked wrong on the PC board. Use the value from the Bill Of Materials which indicates 470 microhenries for L4. This IS the correct value. Jim, W0EB Sent from my iPad On Jan 2, 2017, at 3:29 PM, 'Jim M.' hotrods.2@q.com [4sqrp] <4sqrp@...> wrote:
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