Here is some info found on the internet that may help you program that antique BC101

BC101 Program Documentation

Background.  In the mid-70's the Electra Company of Cumberland,
Indiana produced the first switch-programmable scanner.  Some of
the features that the manufacturer touted for this revolutionary
state-of-the-art receiver were:

                    - 16 Reprogrammable Channels

                    - Unique circuits permit instant selection
                    from more than 6,000 frequencies

                    - No channel crystals required

                    - "Remembers" frequencies without batteries
                    even when unplugged

                    - Exclusive "auxiliary memory" can be
                    programmed for selective scan delay or
                    external control of accessories on desired
                    channels

                    - Exclusive five band coverage:

                         1.    30-50MHz (LOW)
                         2.  146-148MHz (HAMS)
                         3.  148-174MHz (HIGH)
                         4.  450-470MHz (UHF)
                         5.  470-512MHz (UHF TV)
                    Plus:    416-450MHz (UHF Govt.)

Programming.  The manual for the Bearcat 101 contains a section to
aid the user in setting the switches for frequency selections.  The
following is a transcription of that section:

                       PROGRAMMING SECTION

     By simple front panel programming, any frequencies in the
     bands shown can be selected from the code table and put into
     the 16 channels in any desired order.  Having determined the
     frequencies you wish to receive, follow the programming
     instructions listed below.

          In step #1 when the "ready" switch is pushed down, the 16
     channel switches are changed from their normal lock-out
     function to become "data entry" switches.  When the "enter"
     switch is actuated, an automatic cycle begins which erases any
     previous data in the memory for that channel and "enters" the
     new data (or frequency) then set up by the 16 switches.

     PROGRAMMING INSTRUCTIONS

     To program a channel frequency:

     1.  Move "ready" switch to down position (Program indicator
     will light).

     2.  Move all of the 16 lever switches to the down position.

     3.  Manually step channel indicator to channel number to be
     programmed.

     4.  Determine exact frequency you wish to receive on that
     channel.

     5.  Find the frequency in the "look-up" chart.  If the desired
     frequency is not in the chart, refer to "Programming by
     Formula"...

     6.  The number alongside the frequency in the look-up chart
     indicate which lever switches should be moved to the "up"
     position.  Move indicated switches to the "up" position. 
     Recheck the numbers and switch positions to be sure they are
     correct.

     7.  If you desire "rescan delay" on this channel, move lever
     switch #16 to the up position.

     8.  Move the momentary contact (spring return) "enter" switch
     to the "down" position and release.  Channel indicator will
     turn off for about one second.  This channel is now
     programmed.

     9.  Repeat steps 2 thru 7 for each frequency to be programmed.

    10.  When programming is complete, return the "ready" switch to 
   the "up" position ("program" indicator light will go off).  The 
   16 switches now function as channel lock-out switches again.

BACK TO THE PRESENT.  About a month ago I was at a Hamfest and
there it was...a mint-condition Bearcat 101, just like I had owned
nearly 20 years before.  The owner said it works fine but I don't
have the documentation for it and don't know how to get it off the
frequencies it is set to.  Having owned one once before I knew what
a bargain this one was and even though I couldn't remember how it
was programmed, I knew where the information could be found.  The
sale was made and the Bearcat 101 took up an honored place in my
antique scanner collection.

Having a business partner like Matt Amis, AA7LP ('Lightning
Programmer') has it's advantages.  I gave Matt a small synopsis of
the formula used to determine the switch settings.  His only reply
was, "Well, I'll take a look at it but I don't know..."  Within
just a couple of hours Matt called and wondered why I hadn't
already downloaded the program from the BBS.  Typical 'LP' remark!

In that very short time BEAR101.EXE was created.  Operation of the
program is very simple.  As soon as you execute BEAR101, the
opening screen shows you the Standard Frequency Ranges of the
scanner, and gives you a prompt to 'Enter Desired Frequency'.
The screen immediately displays the Switch Settings for your
frequency.  All 16 switch positions are shown.  A '1' indicates the
switch is to be placed in the 'up' position, a '0' means a 'down'
position.  Just as a point of information, switches 14 and 15 are
actually band selection switches, but their position is
automatically indicated according to the frequency you have
entered.  Switch 16 is for Scan Delay.  It causes the scanner to
remain on an active channel for 2-seconds after the carrier has
dropped.  This is to prevent missing callbacks on the frequency you
are listening to.  At this point you can either enter your next
desired frequency or just press 'Enter' to exit the program.

LEGAL STUFF.  This program has been provided to all scanner
enthusiasts as Freeware from ScanWare Associates.  ScanWare makes
no guarantees regarding this program and will accept no liabilities
resulting from the use thereof.  If you have found this program
useful, we would like to hear about it.  Feel free to contact us on
the ScanWare BBS, 24 hours a day, 7 days a week at (206) 871-4228,
300-14400,N,8,1.  All callers receive free and immediate access to
all files for uploading and downloading.  Remember to download the
shareware file FCCFRS.ZIP for the latest version of the FCC
Frequency Retrieval System.

                              Gene McAvoy / KG7XD
                              Matt Amis / AA7LP

The program BEAR101.zip can be downloaded here.

(Right Click and "Save Target AS")--> BEAR101.ZIP

              1C. Multiply freq. by 80.
              2B. Subtract result from 36940.
              2C. Subtract result from 40964.
              3B. Subtract switch numbers.
               3C.Subtract switch numbers.
---------------------------------------------

Subject:      Re: Program info for Bearcat BC101
From:         Don <dtmknsn@ix.netcom.com>
Date:         1997/08/03
Message-ID:   <33E437E7.4AC6@ix.netcom.com>
Newsgroups:   rec.radio.scanner

Dave Hassell wrote:
> 
> Hello,
> 
> I cleaned out the closet and found an old scanner I had long forgot about.
>  But I have not yet located the manual.
> I lost my manual on Bearcat BC101 scanner radio.  Can anyone help me get
> another copy?  I also seem to remember a formula page that could be used
> to determine the switch setting for any frequency not listed in the
> scanner manual.  If you have this manual I would be very grateful if you
> would post the formula on  a letter to me here on this usenet.
> Thanks,
> 
> Dave

Low band: 10.745-51.701mhz
          Freq x 200 (round off to nearest whole number)
          Subtract result from 10340
          Sw 1= 4096
          Sw 2= 2048
          Sw 3= 1024
          Sw 4=  512
          Sw 5=  256
          Sw 6=  128
          Sw 7=   64
          Sw 8=   32
          Sw 9=   16
          Sw10=    8
          Sw11=    4
          Sw12=    2
          Sw13=    1
          Sw14= Lowband (on = UP)
          Sw15= Lowband (on = UP)
          Sw16= 2 second delay

Hiband 143.745-184.701mhz
          Freq x 200 and round off like Lowband
          Subtract from 36940
          Switches same as above except
          Sw14= down (off)
          Sw15= Highband (up)

U & T band 409.6625-512.001mhz
           Freq x 80 round off
           Subtract from 40964
           Sw14= U & T (up)
           Sw15= off (down)

Thanks and Happy Scanning !