[Boatanchors] Ultimate boat anchor for sale

[Boatanchor at alliedinformation.com]

The owner says he ran it at 2 KW, so that's how we listed it. He worked for 
the Air Force at WPAFB for a number of years and had extensive electrical 
engineering experience and resources. That's the best I can tell you.


MC


At 06:48 PM 8/29/2005, Glen Zook wrote:
>The Motorola model is B93AKB (not 893AKB).  Also, it
>is rated at 250 watts output NOT 2 KW!  The 6155 is
>nothing more than a 4-125 without the metal "skirt" on
>the tube.  The 4-125 is interchangeable with the 6155.
>  The final amplifier runs about 500 watts input (which
>is the maximum that a pair of 4-125 series tubes can
>handle with a 250 watt output - 250 watts of power
>being dissipated by the plates plus 250 watts output
>equals 500 watts input power).
>
>The receiver can be of two different types:  Both are
>"A" models.  The first is version that has the "coil /
>capacitor" tuning.  The second is the "Sensicon A"
>which has either 5 or 6 "loaded" cavities in the
>"fronte end".  The "Sensicon A" is an excellent
>receiver for repeater use.
>
>The "K" transmitter (which is used as the exciter in
>the B93AKB) utilizes a number of "loctal" tubes plus
>the final amplifier tube is a 5894.  It is rated at 60
>watts output.  The earlier versions used the 60 watt
>"A" transmitter which was similar but used an 829B in
>the final.
>
>Again, the B93AKB is NOT a 2 KW FM transmitter.  It IS
>a 250 watt output unit.  Normally, the B93AKB will not
>do much more output than 250 watts, at least not for
>any extended time.
>
>When I owned the Motorola Reconditioned Equipment
>Center for the south-central United States we did
>recondition a very few of this model the first couple
>of months in operation (1970).  However, those were
>done on "special order" and we did not ever
>recondition any again.
>
>Again, the B93AKB is NOT a 2 KW transmitter!  It only
>puts out 250 watts.
>
>The only parts that can be used for the HF bands from
>the amplifier would be the tubes, tube sockets, and
>the power supplies.  The exciter/ receiver power
>supply can be either a P8434 or P8464.  The P8434 has
>reduced voltages and is normally used with 30 watt
>output base stations.  However, Motorola did install
>these quite often in the "quarter kilowatt" stations.
>The P8464 is used with the 60 watt output stations.
>Both the P8434 and the P8464 are excellent power
>supplies for "boat anchor" equipment.
>
>The rest of the equipment (receiver and exciter) are
>only good for the 150.8 MHz to 174 MHz band although
>they will normally tune down to the 144 MHz to 148 MHz
>amateur 2 meter band.
>
>I would definitely suggest rewriting the item
>description if you have already put it on eBay.  Your
>description here is definitely not correct.
>
>Glen, K9STH
>
>--- "Boatanchor at alliedinformation.com"
><Boatanchor at alliedinformation.com> wrote:
>
>I have the ultimate boat anchor for sale on e-bay. We
>are selling a 1950's Motorola 2 KW VHF amplifier and
>power supply in an art-deco cabinet.
>
>This auction is for a vintage Motorola model
>893AKB-11003 Amp Type CC3013 rack-mount cabinet
>amplifier for VHF. The cabinet is a great art-deco
>1950's style cabinet. The amp sports a massive heavy
>duty power supply and two 4021 / 6155 final tubes.
>This rig could be modified for the HF band.
>
>Glen, K9STH
>
>Web sites
>
>http://home.comcast.net/~k9sth
>http://home.comcast.net/~zcomco
>
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