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Yaesu FT-747GX / Heath SB-1400 Parts

Discussion in '"Boat Anchor" & Classic Equipment' started by N4IYB, Jan 1, 2018.

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  1. N4IYB

    N4IYB XML Subscriber QRZ Page

    I am trying to find a source for the carrier trimmer capacitors used in this rig. The CW carrier trimmer is 10 pf and the LSB and USB carrier trimmers are 20 pf. All three can be adjusted without removing the cover. With age they cause carrier stability issues. Designation in the Heath model are TC2001, TC2002, and TC2003.
    Currently my CW trimmer is healthy, but best replace all three if possible.

    Thank you & Happy New Year!
    Terry - N4IYB
     
  2. N4IYB

    N4IYB XML Subscriber QRZ Page

    IMG_1069.JPG IMG_1071.JPG
    Two views of the trimmers I need to replace -
     
    Last edited: Jan 2, 2018
  3. W9GB

    W9GB Ham Member QRZ Page

    Google Search Phrase: ceramic trimmer capacitors side tuning

    Did you contact Yaesu USA Parts ??
    http://www.yaesu.com/?cmd=contactus

    Today, the majority of NEW trimmer capacitors are surface mount (SMD), instead of thru-hole.
    Murata : trimmer capacitors
    https://www.murata.com/en-us/products/capacitor/trimmer
    Knowles : Voltronics capacitors, Digi-Key and Mouser are distributors
    https://www.mouser.com/voltronics/

    Knowles Capacitors
    Acquired these brand names: Johanson, Novacap, Syfer, Voltronics, and Dielectric Labs
    http://www.knowlescapacitors.com/
    ==
    This migration was accelerated with RoHS (2003), when mfg. moved to No-Lead (Pb) parts
    and RF industry migration to GHz. Some decided to end thru-hole production (instead of spending capital $$), and focus on surface mount (SMD) with automotive/wireless/microwave industries.
    ==
    As you look through surplus, search for PC leg mount, Side Adjust.
    Erie, Sprague, and Johanson were major OEM suppliers.

    Surplus Sales of Nebraska (Omaha)
    http://www.surplussales.com/Variables/Ceramic/CerCap3.html
     
    Last edited: Jan 4, 2018

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