[Boatanchors] Sonar MB-611

[manualman at juno.com]

I had one of these for several months. Got it as part of a group purchase
in a early Spring silent key estate sale. Had no interest in it and found
it a new home at Dayton several months later.
Here's some info and picture:
http://radiopics.com/MiscHam/4-Transmitters-Exciters/Sonar_MB-611.htm
Surplus Sales has the manual:
http://www.surplussales.com/Manuals/man_sonar.html

Pete, wa2cwa

On Wed, 28 Dec 2011 19:30:11 -0800 (PST) Glen Zook <gzook at yahoo.com>
writes:
> Is the transmitter for 10-meters or 6-meters?  Most were made for 
> 10-meters but they could be ordered for 6-meters.  The MB-611 came 
> out in 1946.
> 
> Suggested high voltage ranges anywhere between 250 VDC to 600 VDC at 
> 100 mA.  This is a NBFM, actually a NBPM (phase modulated), 
> transmitter using crystal control.  An external VFO can be used. 
>  Uses a high impedance microphone.  The tuning controls are 
> screwdriver "set" with "locks".  There is a dual indicator for 
> tuning and for setting deviation.  The deviation is adjustable 
> between 2 kHz and 3 kHz.  Power output is rated at 22.5 watts and 
> supposedly can match any antenna!  Size is10.25 inches long by 7 
> inches high by 5 inches wide.  Weight is 20 pounds and it sold new 
> for $72.45 (less power supply) in 1946.
> 
> Other than a pretty poor, very small photo, I don't have any other 
> information on the transmitter.
> 
> As to value?  Depends on how bad someone wants it!
>  
> Glen, K9STH
> 
> 
> Website:  http://k9sth.com
> 
> 
> ________________________________
>  From: James Barrie <barrie at eos.net>
> To: boatanchors at mailman.qth.net 
> Sent: Wednesday, December 28, 2011 4:27 PM
> Subject: [Boatanchors] Sonar MB-611
>  
> Have a friend who acquired one of these and I have no clue if they  
> 
> have any value. It looks complete (along with all those postage 
> stamp  
> capacitors). Found some vague specs in RigPix, but nothing much 
> beyond  
> that on the internet.
> 73
> 
> Jim
> WA8SDF