[sdiy] Unidentified component

[Jim Coursey]

I don't know publishing so well, but it might actually be a pretty 
clear answer.  Does this shed light on the copyright issue?

http://onlinebooks.library.upenn.edu/okbooks.html#whatpd




On 10/4/2011 4:53 PM, Ben Barwise wrote:
> Sorry to be taking this of on a tangent, whats the law on publishing
> old books from the 50-60's ?
>
> I imagine its a complex legal issue with no clear answer, I certainly
> couldn't find a clear google result , but is it true that 50 years is
> about right?
>
> I have a couple of old useless organ DIY books including designing a
> tube organ (sounds better than it is) that I would scan+host  - just
> for interest.
>
> -Ben
>
> On 5 October 2011 00:33, ghetto synth <ghettosynth at gmail.com> wrote:
>> It's an interesting, if not almost useless, book. I also just picked
>> up a copy because I've had my library's copy checked out for the 
>> last
>> two years and I really should take it back and stop renewing it.
>>
>> There's a lot of discussion of how different organ manufacturers 
>> deal
>> with various sound issues and effects including some nice discussion
>> of percussion circuits. The book includes a lot of partial 
>> schematics
>> but not really any "projects."  It's very reminiscent of tab CB
>> radio/TV books from the 70s but slightly higher quality.
>>
>> I would say that its true value is something like $5 unless you like
>> to fix or dismantle old organs.
>>
>> About 400 pages in 19 chapters.
>>
>> 1) Some Elements of Music
>> 2) What an Organ is
>> 3) Tone Generators
>> 4) Keying and Coloring
>> 5) Tone Coloring
>> 6) Special Effects and Equipment
>> 7) Sound Production and Reverberation
>> 8) Tuning and Servicing
>> 9) Baldwin Organs
>> 10) Schober Organs
>> 11) Thomas Organs
>> 12) Lowrey Organs
>> 13) Gulbransen ORgans
>> 14) Wurlitzer Organs
>> 15) Seeburg Organs
>> 16) Hammond Organs
>> 17) Rodgers Organs
>> 18) Allen Organs
>> 19) Conn Organs
>> Appendix: A.G.O. Specification
>> Index
>>
>> A lot of the circuitry detail is in the manufacturer's chapters, for
>> example, from the Gulbransen Organs chapter:
>>
>> "One of the weird and interesting features of the Gulbransen box of
>> tricks is the Electro-Mute, which is now on all Rialto models. It is 
>> a
>> Solo stop with a tuba sound, and when a knee lever which hangs down
>> from the board supporting the lower manual ismoved back and forth by
>> the organist's knee, it makes a wah-wah sound like a jazz trumpet 
>> when
>> the trumpeter moves the brass derby back and forth over the bell. 
>> Fig.
>> 13-13 is the Electro-Mute circuit...."
>>
>> The simple two transistor circuit is presented and the text goes on 
>> to
>> describe the circuit in detail.
>>
>> The book is great bathroom reading for synth geeks but probably not
>> particularly useful for building synthesizers.
>>
>> Hope this helps, YMMV.
>>
>> On Tue, Oct 4, 2011 at 2:17 PM, Matthew Smith <matt at smiffytech.com> 
>> wrote:
>>> Quoth Tim Stinchcombe at 05/10/11 04:30...
>>>>
>>>> In an old book I have:
>>>>
>>>> Electronic Musical Instruments, Richard Dorf, 1968 Radiofile
>>>
>>> Anyone interested in laying their hands on a copy, there's a few 
>>> listed on
>>> Abebooks:
>>>
>>> 
>>> http://www.abebooks.com/servlet/SearchResults?an=dorf&sts=t&tn=electronic+musical+instruments&x=0&y=0
>>>
>>> Sorry, I just picked up the cheapest one that was there!
>>>
>>> Cheers
>>>
>>> M
>>>
>>> --
>>> Matthew Smith
>>>
>>> Business: http://www.smiffytech.com
>>> Blog:     http://www.smiffysplace.com
>>> Linkedin: http://www.linkedin.com/in/smiffy
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