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Old 11th May 2009, 12:40 AM   #1
kimbal is offline kimbal  Australia
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Location: Brisbane / Queensland
Default Wanted - High Power, High Voltage, Audio Frequency Transformer Manual.

I am after these documents on ULTRA HIGH POWERED Audio Transformer Design which someone may have available for making a copy of.

To purchase this Military/General Electric > High Power, High Voltage, Audio Frequency Transformer Design Manual < it will cost $282 USD (for me closer to $600 AUD) just for the main document which is not reasonable given the type of material, to pay that sort of money. Maybe we could take up a collection of funds and purchase a copy between all and then make copies from that. Any suggestions I would be most interested. My email is > kimbalsummers@hotmail.com <

The last email I got about 2 years ago from > info@ntis.gov < was quoting the following prices for the one below document number AD607774 ( which is the main one ) -

The NTIS Order Number for this report is AD607774, this sells for -
Papercopy Foreign Price $282.50 per copy. The Microfiche Foreign Price $85.00 per copy. The CD-ROM Price $212.00 per copy. (This is a pdf image file on a CD-ROM). There is a $12.50 handling fee per total order. All regular prepaid orders are shipped "air-to-surface" unless airmail is requested. Airmail service is available for an additional fee of $8 per item. NOTE: The document will be a reproduction from our digitized archives and will be 3-hole punched.
Paypal is not accepted by cheque is. Email for more details.

Title: High Power, High Voltage, Audio Frequency Transformer Design Manual.

Distribution Statement : APPROVED FOR PUBLIC RELEASE

Accession Number:
AD0607774

Full Text (pdf) Availability:
Size: 0 KB
Handle / proxy Url: No Full Text PDF Available

Title:
HIGH POWER, HIGH VOLTAGE, AUDIO FREQUENCY TRANSFORMER DESIGN MANUAL.

Corporate Author:
GENERAL ELECTRIC CO HOLYOKE MASS

Personal Author(s):
Howe, J G
Smith, R D
Kingsley, J J
Gearhart, R E

Media Count:
663 Pages(s)

Organization Type:
4 - INDUSTRIAL/COMMERCIAL

Contract Number(s):
NObsr87721 (NObsr87721)

Descriptive Note:
Final rept. for 1 Jul 62-31 Aug 64,

Task Number(s):
9599

Abstract:
This final report, or transformer design manual, is divided into eight sections. Sections 1, 2 and 3 are the Abstract, Objectives and Definitions of Symbols respectively. Section 4 covers information of interest to the transformer user as well as the designer. This section includes a discussion on the transformer mechanical and electrical specifications, the test requirements, and the effect of the specifications on the transformer size, weight, and cost. Section 5 covers the audio frequency transformer design procedure. Here the design of an audio transformer has been broken into a step-by-step outline. Each step is briefly described, all necessary equations are listed and defined, and pertinent factual data is presented in tables and curves. Section 6 presents the procedural detail used to calculate the various parameters needed in the step-by-step design section. Section 7 includes the step-by-step design for the 350 kilowatt verification unit. The design summary for the 15 kilowatt and the 100 kilowatt units is also included. The test results for the three verification units are presented and discussed in this section. Section 8 is a complete bibliography of the literature researched during the contract period.

Distribution Limitation(s):
00 -
00 -
01 -

Source Serial:
F

Source Code:
148600

Document Location:
1

Geopolitical Code:
2501

Supplementary Notes:
Legibility of this document is in part unsatisfactory. Reproduction has been made from best available copy.

Annotation:
High power, high voltage, audio frequency transformer design manual.

Citation Updated:
12 Sep 2005
-------------------------------------------------------------------------------
Accession Number:
AD0894802

Full Text (pdf) Availability:
Size: 0 KB
Handle / proxy Url: No Full Text PDF Available

Title:
Report of Test on: Qualification of Ten Output Transformers P/N X2603939.

Fields and Groups :
090100 -

Corporate Author:
NAVAL WEAPONS CENTER CHINA LAKE CA

Media Count:
50 Pages(s)

Organization Type:
N - NAVY AND MARINE CORPS

GIDEP902.50.24.15-X7-02 (GIDEP902.50.24.15X702)

Monitor Acronym(s):
GIDEP (GIDEP)

Monitor Series:
902.50.24.15-X7-02 (902.50.24.15X702)
902502415X702 (902502415X702)

Identifiers:
QUALIFICATION TESTS, SIDEWINDER.

Abstract:
Life expectancy and electrical properties tests were performed on ten open audio frequency output transformers.


Availability: microfiche copies only.

Citation Updated:
02 Sep 2005
---------------------------------------------------------------
Accession Number:
AD0423969

Full Text (pdf) Availability:
Size: 0 KB
Handle / proxy Url: No Full Text PDF Available

Title:
HIGH POWER, HIGH VOLTAGE, AUDIO FREQUENCY TRANSFORMER DESIGN MANUAL.

Corporate Author:
GENERAL ELECTRIC CO HOLYOKE MASS

Media Count:
85 Pages(s)

Organization Type:
4 - INDUSTRIAL/COMMERCIAL

Contract Number(s):
NObsr87721 (NObsr87721)

Descriptive Note:
Quarterly rept. no. 5, 1 July-30 Sep 63.

Task Number(s):
9599

Abstract:
A design manual is presented for high power, high voltage, audio frequency transformers. Verification of data and design methods used are discussed. A thorough discussion is included of the mechanical and packaging aspects of the design, the insulation materials and processing of those materials, and the electrical and magnetic characteristics of audio frequency transformers. (Author)

---------------------------------------------------------------------------

Accession Number:
AD0434354

Full Text (pdf) Availability:
Size: 0 KB
Handle / proxy Url: No Full Text PDF Available

Title:
HIGH POWER, HIGH VOLTAGE, AUDIO FREQUENCY TRANSFORMER DESIGN MANUAL.

Corporate Author:
GENERAL ELECTRIC CO HOLYOKE MASS

Media Count:
192 Pages(s)

Organization Type:
4 - INDUSTRIAL/COMMERCIAL

Contract Number(s):
NObsr87721 (NObsr87721)

Descriptive Note:
Quarterly interim development rept. no. 6, 1 Oct-3 Dec 63.

Task Number(s):
9599

Abstract:
Six internal reports were released, and are included in this report. They are: mechanical design parameters and component selection for 105, 130 and 200 C hot spot transformer design. (Milestone 9); design parameters for insulation and cooling for 200 C and calculation formulae for winding rise (Milestone 10); measurement of distributed capacitance; electrostatic shielding; procedure for calculating copper losses (Part 2 of Milestone 7); a sample solution for determining the maximum effective area of cruciform cores. (Author)

Citation Updated:
15 Jul 2005
---------------------------------------------------------------------

Accession Number:
AD0412876

Full Text (pdf) Availability:
Size: 0 KB
Handle / proxy Url: No Full Text PDF Available

Title:
High Power, High Voltage, Audio Frequency Transformer Design Manual.

Corporate Author:
GENERAL ELECTRIC CO HOLYOKE MASS

Media Count:
13 Pages(s)

Organization Type:
4 - INDUSTRIAL/COMMERCIAL

Contract Number(s):
NObsr-87721 (NObsr87721)

Descriptive Note:
Quarterly rept. no. 4, 1 Apr-30 June 63.

Task Number(s):
9599

Abstract:
The purpose of this project is the investigation, presentation, and verification of data and design methods used to design high power, high voltage, audio frequency transformers. Ratings of these transformers fall within the following charac teristics: (a) Peak power levels from 15 to 350 kilowatts; (b) Operating frequencies from 20 cps to 20,000 cps; (c) Peak voltage ratings from 4,000 volts to 28,000 volts; and (d) Impedance levels of 300 to 3,000 ohms primary and 10 to 1,200 ohms secondary. The scope of this work includes a thorough discussion of the mechani cal and packaging aspects of the design, the insulation materials and processing of

Annotation:
High power, high voltage, audiofrequency transformer.

Citation Updated:
28 Oct 2005

------------------------------------------------------------------

THE THREE OTHER DOCUMENTS ALL ONE (1) PAGE ITEMS ARE IN THE SAME SERIES AND SUBJECT THESE ARE>

AD0032967
AD043400
AD0292272
-------------------------------------------------------------------
On the same subject but related to AUDIO Transformers for Solid State the following 1954 Document is from the same source. It appears to be only one page: >

Accession Number : AD0032967

Title : AUDIO TRANSFORMER DESIGN FOR TRANSISTOR CIRCUITS

Corporate Author : ARMY ELECTRONICS LABS FORT MONMOUTH NJ

Personal Author(s) : KAJIHARA, HITOSHI H.

Report Date : 05 MAY 1954

Pagination or Media Count : 1

Descriptors : AUDIO FREQUENCY, MINIATURE ELECTRONIC EQUIPMENT,TRANSFORMERS, DESIGN, SEALS (STOPPERS), TRANSISTORS.

-------------------------------------------------------------------------
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Old 11th May 2009, 01:01 AM   #2
kimbal is offline kimbal  Australia
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Just adding to the above - I have no intentions of building 100 kilowatt guitar amps or the like. I simply want to use the research information attained in the Manual and scale it down for stuff under 10 kilowatts ( say push pull 833 triodes, or the other newer ceramic type vacuum tubes; etc.)

Designing really LARGE Power Transformers ends up as a specialist feild once you start getting over a kilowatt or so. Even more so with Audio Transformers.

So far this manual is the only Audio Transformer design material I can find on the really big stuff from covering 20hz-20khz in frequency, output impedances & voltages for standard transmitter tube operation such as those used in AM Modulators and specialist Audio equipment in industry.

With some fiddling of the figures and design parameters I cannot see why really big Hi-Fi stuff could not be designed from this manual, as it gives step by step design proceedures for practical construction of really humungous Audio Transformers.

For the serious builder - it would be far cheaper to build yourself than get a commercial winder to do the job.

I pretty well have most documents/books/articals readily attainable from the internet that are FREE on Audio Transformers ( but many links have since been lost as the websites close down ); but there are a few items that would be worthy of adding to my own collection if I can source them; such as >
'Electronic And Radio Engineering' ( By Frederick Emmons Terman ) as published in 1955, with 1078 pages; etc.

If anyone has other information on - Audio Transformer Design and/ or Construction - please email me - Thanks!
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Old 11th May 2009, 04:04 PM   #3
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hey-Hey!!!,
With the 'fische and a proper scanner, you'd 'scan to batch' and make a pdf of it. I'd go after the local engineering libraries and confirm availability of the machines, and buy the 'fische. Matter of fact, I'd contribute half of the $85 for it.
cheers,
Douglas
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Old 11th May 2009, 05:34 PM   #4
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I'll chip in for the CD-rom version. How 'bout a group buy?

;-)
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Old 11th May 2009, 08:05 PM   #5
kimbal is offline kimbal  Australia
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Yes I am interested in a group buy. I am not so interested in the Micro-fishce copy only because of the drama to rescan it and make it into a PDF file - which in reality is all I want. The CD is what I really want as I can print that off into a hardcopy.

Just to be nice to all those interested I have one of the docs already off the net and can supply that to those who want it - FOR FREE of course. Email me at > kimbalsummers@hotmail.com < for more details and to express your interest in a group buy.
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