[Milsurplus] Holiday Puzzle

[WA5CAB at cs.com]

Mike,

Actually, what was included in the kit (at least those I have or have seen) 
wasn't a thick bottom cover, but a block or box used to modify the existing 
thin one.  You removed the bottom cover from the radio being modified, 
removed the battery contact place from the bottom cover, and using a template 
supplied in the kit drilled five holes.  Four were for screws to attach the 
jack box to the outside of the bottom cover.  The fifth, into which you 
installed a rubber grommet, was for the wire from the jack.  It is terminated in a 
right-angle mini-banana pin.  To route the receive audio to the external 
jack, you unplugged the lead going to the earphone and plugged in the lead 
coming from the jack.  And then closed and latched the bottom cover.

The late -F bottom cover will not work on a radio that does not have (in 
place of the gray fiber one) the aluminum spacer with the flip-up terminal 
board for the leads going to the internal microphone and earphone.  Or more 
correctly, it will only work with external headset and microphone.  There is no 
way to connect the internal ones through to the chassis.

In a message dated 12/27/2009 1:55:49 PM Central Standard Time, 
mmab at cox.net writes: 
> 
> I recall buying a Homing Modification Kit (MC-619) for my BC-611 from J.J. 
> 
> Glass Co., back in the days of the big mil. surplus stores in downtown Los 
> 
> Angeles. Besides the DF antenna (AN-190), Antenna Coupling Unit (BC-1387), 
> 
> HS-30 earphones, extra earplugs and manual (TB 11-235-8), the kit included 
> a 
> thick bottom cover (called a Jack Plate) to replace the cover on any 
> BC-611 
> with a thin bottom cover. The manual says to discard the thin bottom 
> cover. 
> The thick cover had a phone jack to allow the included phones to be 
> plugged 
> in.
> Mike W6MAB
> 
> 

Robert  Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480