[Motorola] Research Line for amateur use

Thu, 21 Mar 2002 21:17:49 -0700

Tom,
The "Twin-V" used two vibrators as in "Twin-V(ibrators).  The "T-Power" was
essentially the same radio (G-strip TX and G-strip RX), except the power supply
used a DC-DC inverter with transistors.  The Twin-V radio was a little hard on
vibrators, but the T-Power was a really fine radio.  They both had the same
spec's and used the same cables and accessories.
Dave
W7MBH

Tom Elmore wrote:

> Wow some cool stuff and it is still working. The twin V did it use
> transistors in the power supply or vibrators?
> -Tom
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Geoff Fors
> Sent: Wednesday, March 20, 2002 5:09 PM
> To: [email protected]
> Subject: Re: [Motorola] Research Line for amateur use
>
> Actually, the Motrac was Motorola's "Transistor Research Line." The original
> Research Line was produced from approx. 1950-1955, is mainly 6 volt,
> vibrator/dynamotor powered, all tube gear.  The postwar progression of
> models is "Deluxe," "Research," "Twin-V," "T-Power," "Motrac," "Motran,"
> "Mocom 70" (first called Motran II), Micor, Syntor, Syntor X, Syntor X9000,
> and then Spectra etc.
>
> There were more models as well, in lower "price tiers," such as Mocom 30,
> Mocom 10, Dispatcher, etc..
>
> I recently converted and tuned up a small fleet of 1956 vintage T43GGV "Twin
> V" mobiles for an SF bay area ham group who collect military and old two way
> radios.  They use them on 146.52.  There are still some ex-highway patrol
> Motran radios on 6 meters throughout California.  I have a FMTR-41V Research
> Line utility base on 52.525.  So, to answer the question, yes, people still
> use the old tube stuff, but it's not always easy !
>
> Geoff Fors
> WB6NVH
>
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