[AMPS] TRW PT6702 or PT6747?

[Peter Chadwick]

I've had a look in the Motorola book - they aren't in there.

73

Peter G3RZP
> ----------
> From: 	John Fielding[SMTP:johnf@futurenet.co.za]
> Sent: 	21 April 1999 17:10
> To: 	Radio WC6W; Steve Thompson
> Cc: 	amps@contesting.com
> Subject: 	Re: [AMPS] TRW PT6702 or PT6747?
> 
> 
> PT was one of the prefixes used for TRW RF parts (others were J0 and MRA),
> some were
> custom parts but the vast majority were for general sale.  I can't say I
> recognise the
> numbers listed but they may be standard parts.
> 
> Check out the Motorola RF Devices Data book.  Motorola bought TRW some
> years back and
> most of the range was dropped in favour of Motorola equivalents.  However
> a good cross
> reference exists in the first section of the Motorola book which should
> help.  I have a
> few old TRW data books at work, I will bring them home this weekend and
> see what I can
> find.
> 
> John	ZS5JF
> 
> ----------
> > From: Steve Thompson <amps@txrx.demon.co.uk>
> > To: Radio WC6W <wc6w@juno.com>
> > Cc: amps@contesting.com
> > Subject: Re: [AMPS] TRW PT6702 or PT6747?
> > Date: 21 April 1999 11:28
> > 
> > 
> > In message <19990418.090953.9375.1.WC6W@juno.com>, Radio WC6W
> > <wc6w@juno.com> writes
> > >
> > >Happy Sunday Morning (at least where I am...)
> > >
> > >   Does anyone happen to know the specifications for either the TRW
> > >PT6702 or PT6747 RF power transistors?
> > >
> > >   I surmise that they are late 60's vintage VHF parts...
> > >
> > >73,
> > >  Marv  WC6W
> > I think that the PT numbers were mostly customer specific, either in
> > testing or for commercial disguise although the actual transistors were
> > usually generic types. A few PT parts made it to general sale but these
> > numbers don't appear in my US or EU TRW catalogues covering 81-93.
> > 
> > Steve
> > 
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