[R-390] RE: ReCapping R-390A

[Drew Papanek]

    George Kavanagh wrote:



       ** Just how big a project _is_ completely recapping an R-390A?


    You are mostly recapping individual modules; that divides the project 
into a series of smaller subprojects none of which is very large.  A
    module can be recapped in reasonable time and the radio placed back in 
service; another module can be done at another time.

    Removal of the BFO can in the IF module makes access to several 
capacitors there much easier.  Make a notation of the connection
    points for the can's 3 leads.

    Resistors can be checked and replaced as needed; quite often they drift 
out of tolerance (usually upward).

    Wei-i Li comes to the rescue with his "Pearls of Wisdom"; a categorized 
collection of postings to this forum over the years.  Go to
    r-390a.net, references, pearls of wisdom for much more information on 
recapping and other topics. Fascinating and Absorbing!

    Drew

    "Vicariously repairing and modifying R-390x via advice to others"

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