Heathkit Frequency Counter Project

Discussion in 'CB Radio Forum' started by delta5, Nov 25, 2016.

  1. Nov 25, 2016 #1
    delta5

    delta5 Road Train Member

    1,193
    7,404
    Sep 9, 2010
    Ohio
    0
    I picked up a nice old Heathkit IM-4100 counter on Ebay and am in the process of refreshing it. I found 5 new LED displays for it and those fixed my flickering segments. Should I bother reseating the IC chips too? I plan on touching up all the solder joints and replacing the 6000uf electrolytic in the power supply too.
     

    Attached Files:

    delta5, Nov 25, 2016
    delta5, Nov 25, 2016
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Nov 26, 2016 #2
    Ridgeline

    Ridgeline Road Train Member

    22,777
    124,579
    Dec 18, 2011
    Michigan
    0
    That's cute.

    I've got a bunch of them, a few which was lab counters and I can not find any manuals on them.

    BUT ...

    I would leave everything alone. if it works without flicker, then just calibrate it and try it out.

    I don't remember if IM 4100 has an external clock input on the back, but one worthy project is a GPS 10mhz standard to add to the precision of the counter.
     
    Ridgeline, Nov 26, 2016
    Ridgeline, Nov 26, 2016
    #2
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.