[Motorola] M9658

[n_griggs at bellsouth.net]

Actually NTE does have some replacements for the more common transistors.  As for putting this topic out of its misery......consider it dead.  I will have no further requests from this group.  I look to a group for help and I get flack.


Neal  KC4YCM


> 
> From: "Geoff Fors" <wb6nvh at mbay.net>
> Date: 2006/04/18 Tue PM 07:04:07 EDT
> To: "Discussion of equipment manufactured by Motorola" <motorola at mailman.qth.net>
> Subject: [Motorola] M9658
> 
> I hope we can put this topic out of its misery soon.  To help things along
> in that regard, there is not now, nor has there ever been a cross reference
> guide to Motorola RF transistors, other than the short-lived Motorola ROGO
> program in the early 1970's for small signal transistors, which just
> substituted one M- number for several.
> 
> The Motorola M- series transistors are specifically designed for the
> application range they are found in and they are not just relabeled generic
> parts.  About the best you can do is trial and error substitution based on
> known characteristics of the original part, and go from there.  RF Parts'
> catalog  shows one or two cross-references but those were determined by
> customers following experiments, rather than being supplied by any
> manufacturer, according the engineering staff there.
> 
> With the older stuff, it's handy to have spare boards and assemblies because
> of this kind of problem.
> 
> Geoff
> WB6NVH
> 
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