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Search results

  1. D

    MC145106P info needed

    It is an intriguing idea, but I've never seen a kit for that personally, and to do the swap would likely require some frequency juggling. The typical MC145106 chassis (Galaxy, Connex, etc) uses different loop oscillator and VCO frequencies. You photo shows what appears to be an extra crystal...
  2. D

    DDS VFO

    The output impedance of the 5351 is 50 ohms, with drive levels up to 8mA. Should be enough for any oscillator/crystal replacement needs you have. For a more involved coding example than the samples provided with the Etherkit library, you can download the code I wrote for my key-pad-controlled...
  3. D

    Si5351

    I've never had any issues storing these things out in the open. They are NOT that delicate, lol! As long as you don't expose them to anything more than normal humidity, I doubt you would ever have any issue at all. As for drift, I've used these in a number of projects, and I've not had any...
  4. D

    DDS VFO

    The general installation manual from the DDS-VFO website's help page covers how to set up CLK1 for a fixed frequency. CLK2 doesn't seem to be available in the DDS-VFO menu, but since the 5351 uses I2C for communication with the kit's Arduino Nano, you could probably install and connect a 2nd...
  5. D

    Favorite tech for repairing board trace?

    The radio in question uses a double-side board. It may not be a simple fix in this case, as a board via may have been damaged as well. Would you be able to take a close-up photo or two of the damaged area? Might help with coming up with a solution.
  6. D

    problem galaxy saturn

    What trouble-shooting have you already done?
  7. D

    Shure hand mics

    I'm currently using an ancient Turner handmic that was supposedly based on a Shure, but the model is obscured and I have no idea what Shure model it was supposed to be based on.
  8. D

    Realistic TRC-450 new in box will it work?

    Be thankful they were DEAD! I opened up a Cobra 29 LTD Classic about 20 years ago that was FULL of LIVE roaches. It was just like a scene from a horror movie. Roaches scurrying across the bench, across my lap, up the cabling, down my legs, and in all directions across the floor. Needless to say...
  9. D

    Another new(?) Ranger

    Great post on the details of that RCI case! I remember when that was a big topic of phone conversations with Galaxy and a few distributors at the time. RCI IS repacking some of the old tech while introducing new models. The problem with RCI is still build quality. I continue to see new Ranger...
  10. D

    President George FCC - CONFIRMED!

    MSRP in the US will be in the ballpark of $270.00 - $300.00, with dealer cost approaching the $200.00 ballpark. One popular US distributor called me a couple days ago asking my opinion as to whether they should start carrying it, and I had to say no. Not sure this one will catch on very well at...
  11. D

    Navaho TRC490 No Transmit (PC385AG)

    The part to which Doffo is referring is the AM voltage regulator. Based on the fact that you are seeing proper voltages on the driver/final collectors, and the fact that you do hear the transmit on a nearby radio, I do not think there is an issue with the AM regulator. This is beginning to sound...
  12. D

    11 Meter Conversion for Uniden 2600

    I know this is an ancient thread, but there's an HR2600 listing on Ebay for those interested.
  13. D

    Any more on Mike of Mike's Radio Repair?

    Something fairy major had to have happened, but no excuse for not returning customers' radios, fixed or not. I'm going to try to connect with him via QRZ or maybe bump into him on 2 meters, and see if I can find anything out.
  14. D

    Any more on Mike of Mike's Radio Repair?

    Has anyone heard from Mike? I know he's alive and well from his QRZ page.
  15. D

    help with SSB output

    One other broad-banding trick is to put a 200-ohm resistor across pins 11 and 13 of the SO-42P TX mixer IC. I think those are the correct pins, I'm not at the shop to check my notes. I know its two pins near the connection for L47.
  16. D

    Connex CX-3300HP Hot Am Mod and Finals

    The may seem simplistic, but with the RCI build quality issues lately, look for bad solder joints in the output tank circuit. I've seen a few of these come through that were basically brand new with tank circuit coil connection failures. Any breakdown in the tank could cause the problems you're...
  17. D

    radio and amp matching....

    I'll add one more observation to the thread. Many newer exports have separate AM and FM carrier levels. As had been pointed out already, you should use the same carrier level on FM as on AM to avoid releasing the magic smoke.
  18. D

    Service Tech for my Stalker IX

    If you're still looking for a shop, try www.cbshopwhitelist.com for a starting point. Please note that Key's CB may not be a good option right now as the owner is unfortunately rumored to be having some health issues.
  19. D

    Radio's with the most quiet receive

    I know its an older model, but the receiver (especially the noise blanker system) on the Yaesu FT-100 is quite good.
  20. D

    Uniden Washington Base Station

    I used to believe that braided was better than solid because of the surface area. A well-seasoned and well-educated fellow ham in my area told me that a plain old copper wire, the larger the better, works just as well if not better for RF. Cutting the coax can and usually will affect what the...