Need Info on Heath RF Transistors

[Ray Mack]

Ron:
        There is nothing especially magical about which transistors to
use.  My older Motorola RF manual is at home so I can't look there to
see what they suggest as a cross.  The blue Motorola books don't show
a cross for either of these transistors. Of course the 104 manual is
at home too.  Throw an e-mail rock at me again to make sure I didn't
forget.  This is likely a problem for other 104 owners.  I'll look up
the power in and power out for these critters and find something in
Motorola that should work.

        Heath sure did have a propensity to use off-the-wall
semiconductors.

        The PT series of transistors were made by TRW.  Motorola
bought them out sometime in the 80's and carried their transistors.
For a while (the blue and grey manual) listed both their transistors
and app notes along with the MRF series!


Ray Mack
WD5IFS
mack at mails.imed.com
Friendswood (Houston), TX


______________________________ Reply Separator _________________________________
Subject: Need Info on Heath RF Transistors
Author:  Ron Eisenbrey <ab5wg at vonl.com> at mails
Date:    11/9/97 11:21 PM


I am looking for a pair of CD-3342 or PT6619 RF transistors used in the
driver stage of the SB104.  Heath listed the part number as 417-830.  I
have been unable to locate a cross reference on either one of these part
numbers--can anyone help or know of an equivalent replacement and a
source?

Thanks,

Ron, AB5WG

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