[Milsurplus] BC-611s in marine band

[email protected] [email protected]
Wed, 14 May 2003 10:10:29 EDT 

Marty,

You've stumbled into one of the mysteries of Galvin.  The SCR-511 
(BC-745/746) Pogo Stick used tank and antenna coils that are interchangable 
mechanically with those in the BC-611.  The antenna coils are not 
interchangable electrically.  I've never needed to find out whether the tank 
coils are or not but I suspect not.  The BC-611 only went down to 3500 KC so 
any coils marked below that are for the Pogo Stick.  For the most part 
(another mystery), the crystal sets supplied for the SCR-511, SCR-536 (and 
SCR-299/399/499) contain few matches in frequency.  3995 KC is a Pogo Stick 
frequency.  Nearest SCR-536 freq was 3990.

The BC-611 antenna coil for 3885 (C-360) covers 3825-4025.  Early production 
ones were marked with a single frequency even though all of the ones within a 
given range are the same.  Later ones were marked with the range.  The same 
statement is true of the tank (RF) coils except that the range on C-371 is 
3825-4225.

I don't know whether a similar statement is true of the Pogo Stick ones or 
not, but I've never seen any Pogo Stick range marked coils.

In a message dated 5/14/2003 3:04:25 AM Central Daylight Time, 
[email protected] writes: 

We're not talking harmonica.

This '611 had coils / xtals for 2670.  Was used once in an NE US 
event called SeaFair (get it?)

I've one here &can't for the life of me figure why with a 3995 tank
&Antenna coil I can't hit resonance on 3885.  Tank set for min. L &
cap. C12 @ min.

UNLESS &probably someone put a padder cap on plate of RFA 3S4 where
it goes to L2 &switch for C12.  I just don't see it tho

Anyone else ever happen on this??

73
Robert Downs
Houston
<[email protected]>


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