>At Dayton 2002 I picked up a homebrew 8874 amp for 432 MHz. It appears to
>be a reasonably well built copy of the K1FO amp which was in the October
>1979 QST and several of the ARRL Handbooks from the early 80s.
>
>The amp was apparently built with the wrong grid collet assembly. (Perhaps
>the builder used what he had, in the best ham tradition.) The amp exhibits
>some operational problems as documented in K1FO's followup article in the
>July 1987 QST, which are traced to the grid collet.
>
>My question is, where can one buy Eimac grid collets and other accessories
>related to power tubes? ...
? Richardson Electronics in Chicago.
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