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Article #619784

Re: 1956 -- circuit reliability book

#619784
From: Dave Garland
Date: Sat, 03 Feb 2018 17:11
48 lines
4637 bytes
On 2/3/2018 9:07 AM, jmfbahciv wrote:
> Scott Lurndal wrote:
>> jmfbahciv <See....@aol.com> writes:
>>> hanc...@bbs.cpcn.com wrote:
>>>> On Wednesday, January 31, 2018 at 9:48:23 PM UTC-5, Andrew Swallow wrote:
>>>>> On 29/01/2018 16:53, Charlie Gibbs wrote:
>>>>> {snip}
>>>>>
>>>>>>
>>>>>> The one Hollywoodism that always bothered me is the way a telephone
>>>>>> reverts to a dial tone when the other end hang up.  I've never heard
>>>>>> this in real life, but maybe it's regional thing.  Can anyone from
>>>>>> New York say whether this really happens there?
>>>>>>
>>>>>
>>>>> That is nationwide. There is a dummy exchange that Hollywood and TV
>>>>> companies use. It does not matter what number you dial the equipment
>>>>> returns dial tone. The two actors were not talking to each other.
>>>>
>>>> Telephone sets used on movies/TV are not connected to anything.
>>>> Sound effects (tones, etc) are added later.
>>>>
>>> Even for movies made in the 40s, 50s and 60s?
>>
>> Yes.   And Stage plays used a autotransformer to supply ring
>> current when they needed an on-stage phone to ring, but it
>> wouldn't have been connected to an "exchange".
> 
> I know how that is done.
> 
>>
>> I suspect that Andrew is referring to the special exchange number
>> '555' that will never be used (except for 555-1212) and is
>> suitable for example and hollywood use.
> 
> My question was about the editing in of the sound effects.  I didn't
> think the tech was available that early.  Only one camera was used
> for TV shows until Desi Arnaz created new methods on the "I Love
> Lucy" show.
> 
The tech was available. Sound effects were available on vinyl. And 
radio shows used sound effects long before Lucy and Desi. For a 
contemporary example, "Prairie Home Companion" sound effects are done 
live, in real time (with an occasional skit starring the sound effects 
guy), .Flex a piece of sheet metal, and you have thunder. Grab those 
coconut shells and you've got hoofbeats. The ringing telephone 
probably does require a ring generator (or a crank magneto) connected 
to the telephone.
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From: Dave Garland <dave.g...@wizinfo.com>
Newsgroups: alt.folklore.computers
Subject: Re: 1956 -- circuit reliability book
Date: Sat, 3 Feb 2018 11:11:00 -0600
Organization: A noiseless patient Spider
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References: <2884a417-2702-428f-89fb-d21cda9eeaed@googlegroups.com> <d687cecb-0383-477c-ac8e-4cf57061ccd1@googlegroups.com> <M8HbC.621680$QL6.132451@fx20.am4> <p4njj33o96@news4.newsguy.com> <TqOdncSdOJxr4u_HnZ2dnUU78IXNnZ2d@giganews.com> <c4977b5c-cc78-4773-a02f-c3cf5c191a35@googlegroups.com> <PM0005643B1039BB8A@aca42e3d.ipt.aol.com> <2884a417-2702-428f-89fb-d21cda9eeaed@googlegroups.com> <p4b4es$nmv$1@dont-email.me> <87607pwqnm.fsf@usenet.ankman.de> <o8CaC.652306$nS6.186263@fx23.am4> <p4fovt0cot@news1.newsguy.com> <4KzbC.489966$HZ5.382140@fx22.am4> <d687cecb-0383-477c-ac8e-4cf57061ccd1@googlegroups.com> <M8HbC.621680$QL6.132451@fx20.am4> <p4njj33o96@news4.newsguy.com> <TqOdncSdOJxr4u_HnZ2dnUU78IXNnZ2d@giganews.com> <c4977b5c-cc78-4773-a02f-c3cf5c191a35@googlegroups.com> <PM0005643B1039BB8A@aca42e3d.ipt.aol.com> <l01dC.3919$qv.3169@fx33.iad> <PM0005645078010115@aca41e49.ipt.aol.com>
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