[Milsurplus] Fwd: Re: LM/BC-221 stability

[B. Smith]

That radio op would be more useful manning the waist gun  or serving as 
an extra pair of eyes at one of the windows instead of fooling around 
with a BC-221. The BC-375 would come in handy on a ferry flight across 
the pond.

k4che
>>> -------- Original Message --------
>>> Subject:        Re: [Milsurplus] LM/BC-221 stability
>>> Date:   Tue, 07 Jan 2014 08:43:05 -0500
>>> From:   Bruce Gentry <ka2ivy at verizon.net>
>>> To:     David Stinson <arc5 at ix.netcom.com>
>>>
>>>
>>>
>>> This discussion of BC-221s has caused a question to arise regarding
>>> their use on bombers. Did each radio operator set up the BC-375 with
>>> their own BC-221, or did one plane do so and all the others "spot"
>>> him?  How about the drift of BC-375s, did the home base send a short
>>> message frequently so the radio operator could zero beat it and be on
>>> exact frequency for their reply?  Did each bomber make a report, or
>>> did
>>> one or two report for them all?   What happened if the mission
>>> required
>>> total radio silence both ways until it was time to report results.
>>> Was
>>> the BC-221 and BC-375 accurate enough to be on frequency? This
>>> would be
>>> far more important for CW than AM,  it is unlikely the inaccuracy
>>> would
>>> be a problem on AM for a broad receiver. I have never met a veteran
>>> WW2
>>> airborne radio operator to ask these questions, I wonder how many are
>>> still left?...  :(
>>>
>>>      Bruce Gentry   KA2IVY
>>>
>>> On 1/7/14 7:55 AM, David Stinson wrote:
>>>> LMs that I've seen usually need a lot of the oil-filled caps
>>>> replaced.
>>>> If you have one, like a bypass, on any of the voltage busses
>>>> and it's leaking, it can pull the oscillator regardless of the power
>>>> supply regulation.
>>>> Some of them a real bear to replace.
>>>>
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