Are you seriously looking for the schematic diagram for the TU-154?
Neil Mark Holman wrote: > > Say Rob. > Ye olde ancient stuff Motorola probably never gave the data > on the web since it was presumed DOA . > > M. H. > > ----- Original Message ----- > From: "Rob" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, January 07, 2005 10:31 AM > Subject: [Repeater-Builder] Re: Motorola microphone schematic > > > > > > > Well the specific one is from a CDM750 but I think most operate in > > the same basic manner. It isn't so much an exact schematic I need but > > a basic operation diagram. Motorola supplies about +5V on the mic > > line and the mic element is also connected throgh the PTT switch > > somehow. > > What I am trying to figure out is if I can use a mic amp to boost the > > gain for an autopatch. > > It is almost looking like I may have to custom build an amp out of a > > FET or something like an other responder did. > > > > As to the TU-154, all I get is hits for an old Russian airliner. > > Thanks -Rob- > > > > --- In [email protected], Neil McKie <[EMAIL PROTECTED]> > > wrote: > >> > >> Not a problem, if you can remember which radio you had it > >> connected to when you installed it, I probably have the manual > >> > >> Was that a FMTRU-5V ? > >> > >> Neil > >> > >> > >> > >> Mark Holman wrote: > >> > > >> > type in TU-154 for Motorola, an old remote head with a amplified > > mic.older > >> > than dirt 1964 I think. > >> > > >> > I had one or 2 my dad gave me no radio though :-( > >> > > >> > M. H. > >> > > >> > ----- Original Message ----- > >> > From: "Rob" <[EMAIL PROTECTED]> > >> > To: <[email protected]> > >> > Sent: Wednesday, January 05, 2005 1:15 AM > >> > Subject: [Repeater-Builder] Motorola microphone schematic > >> > > >> > > > >> > > > >> > > Anyone know if the schematic for an amplified Motorola Mic is > >> > > available on the net? > >> > > Still trying to get this autopatch going and having some real > > level > >> > > issues. My patch just doesn't have enough drive for the radio. > >> > > TIA -Rob- > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > Yahoo! Groups Links > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > >> > > >> > Yahoo! Groups Links > >> > > >> > > >> > > >> > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
