Results 1 to 5 of 5

Thread: Invar tuning rod for Sinclair

  1. #1
    Join Date
    Apr 06, 2016
    Location
    USA
    Posts
    75
    Thanks
    2
    Thanked 51 Times in 29 Posts
    Country: United States

    Default Invar tuning rod for Sinclair

    Does anyone have a good source for the Invar rod used in tuning a Sinclair Q3220e duplexer(I got screwed). The unit that I purchased off of ebay had the rods cut off to the point that it will not tune down to where I need it.

    I have heard that Sinclair will sell it for a ridiculous price and I am trying Jag RF. I know that it can be purchased from other suppliers but so far I haven't found a good source in my online searches.


  2. #2
    Join Date
    Feb 04, 2012
    Posts
    1,823
    Thanks
    143
    Thanked 535 Times in 252 Posts

    Default

    The rods are just a aluminum (i think) rod. I have bent some in the past. Any good metal shop should be able to replace the rod with a new one.

    Again we run into idiots who hack apart hardware because they dont know what they are doing or want it to look pretty.

  3. #3
    Join Date
    Dec 10, 2018
    Posts
    29
    Thanks
    17
    Thanked 54 Times in 18 Posts
    Country: United States

    Default

    Instead of trying to fix it, you might try to get your money back via the eBay guarantee, assuming that it was a recent purchase and was sold as "used" rather than for "parts or repair." Even if the seller stated that s/he doesn't accept returns, eBay might look with favor on a "not as described" claim, especially if the frequency range was listed and the duplexer you received won't tune there. You might have to explain the technical details.

    I had a incident where a "used" electronic item wasn't as described. Once I opened a case with eBay, the seller accepted it for return notwithstanding a "no returns" statement in the listing.

  4. #4
    Join Date
    Apr 06, 2016
    Location
    USA
    Posts
    75
    Thanks
    2
    Thanked 51 Times in 29 Posts
    Country: United States

    Default

    Update....thanks to a good friend of mine who has a collection of all kinds of two way equipment, we were able to rob some invar rod from a 72 MHz cavity to fix the problem.

  5. The Following User Says Thank You to FMTRU140D For This Useful Post:

    Viper1-6 (Jan 22, 2019)

  6. #5
    Join Date
    Feb 04, 2012
    Posts
    1,823
    Thanks
    143
    Thanked 535 Times in 252 Posts

    Default

    Thanks for the update. Its always good to know what the final outcome was.