[R-390] Guided discovery on the RF deck

[Jim Whartenby]

JohnI like the chopstick idea but I have never seen any failure in the Teflon pins or socket connector on L/C cans on any equipment that uses them. Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy 

    On Wednesday, July 10, 2024 at 12:46:25 PM CDT, jkharvie via R-390 <r-390 at mailman.qth.net> wrote:   

 While in the RF-subschassis process of cleaning and reassembly I noted that only 2 of three pins are plugged in and active on 

Z201-1Z202-1Z203-1Z204-1Z205-1Z206-1
as per the electrical schematic, but something I never specifically noted or thought much about previously.

This got me thinking that the non-used pins might serve as a source of spare pins if/when needed.
Attached graphic shows top view of the RF subchassis awaiting cleaning, a three pin "can" of which two pins are used, a bottom view showing mounted cans with no connection to the one pin in highlighted red box, and the RF subschassis schematic showing all of this.  

One of the "tools" I made was drilling out the end of a bamboo chopstick with a #35 drill (0.110") to hold 1/2 of cotton tip applicator swab.
Best regards,

John (N3JKE)

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