[Milsurplus] Convoy VHF - TBS or TBY?

[WA5CAB at cs.com]

The MBF was to be the replacement for the shipboard TBY. There is even a 
drawing in the manual showing someone walking onto a merchant vessel lugging 
the two cases. But the only manual I have ever seen on it is dated 06/13/45, 
after VE day. And it was, from the quality (or lack thereof) of the paper 
and printing, rushed into print to get it out that early. My conclusion is 
that they never saw service in the Atlantic.

And there was a 115 VAC/VDC vibrator supply for the TBY. I've had three or 
four of them over the years.

Robert D.


In a message dated 02/04/2013 14:55:17 PM Central Standard Time, 
RAFANTINI at salisbury.edu writes: 
> Thought the Collins MBF fits in there someplace? The TBS was a large 
> complex radio but it was a reliable design. The TBY is useless as a field radio 
> and have heard accounts of its use in convoy duty and of a power adapter 
> for shipboard use so can see it fitting right in in that application but 
> then there is the MBF that is just about useless for anything except 
> communicating with a TBS or TBY, perhaps the MBF replaced the TBY later in the war 
> as a more reliable VHF AM transceiver then the temperamental TBY?
> 
> Ray F
> 
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net 
> [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of w8au at sssnet.com
> Sent: Monday, February 04, 2013 3:24 PM
> To: David Stinson; milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] Convoy VHF - TBS or TBY?
> 
> At 06:47 AM 2/4/2013, David Stinson wrote:
> >>Maybe the U-boats heard nothing at 2.5 MHz because the ships were 
> >>using the TBS?
> >
> >Navy escorts, according to the available prints, certainly had TBS.
> >But the merchant ships were not equipped with such expensive toys. ET 
> al....
> 
> Not to mention the big space requirements for the TBS.... a gargantuan 
> piece
> of heavy metal for just one channel.   50 watts?  who needed that 
> much for convoy
> comms?   If you could keep a TBY on channel, why not take the easy 
> way out...:-)
> 
> Perry

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