RETMA Conference on Reliable Electrical Connections

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A000100080002-0
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 2
• Document Creation Date: December 9, 2016
• Document Release Date: April 27, 2001
• Sequence Number: 2
• Publication Date: September 26, 1956
• Content Type: MF

Approved For Release 2001/07/16 : CIA-RDP78-02820A000100080002-0
The Piles (Trip Report)
AETNA Conference on Reliable Electrical Connections
r 1956
25X1A2a
1. Cn September 11 and 12 I attended the secondNETMA Conference
ectrical Connections. This conference was held in Philadelphia
University of Pennsylvania.
The first half of the conference was davoted. almost entirely
to the subject of making reliable solder connections. All of the
various soldering techniques were covered from a production stand-
point. It was concluded that the most serious Obstacle to good solder
joints is the human element. To overcome this limitation in production
much emphasis was: placed on automatic soldering techniques and solder-
less connectors. No general standards have been established by the
manufacturers but attempts are being made to gather information from
each manufacturer in an effort to establish standard methods to be
used in automatic soldering techniques.
3. The second part of the conference discussed solderless con-
nectors. The main advantage in this type connection, aside from being
cheaper, is a very uniform connection. The latest type of solderless
connector is the taper pin. This connector consists of a tapered pin,
with a hole for wire, and a socket. The pin is driven into the socket
with a small impact tool. Lockheed makes 130 million connections each
year with this type connector. Bell Telephone has had good results
with the wrapped wire solderless connector and some television manu-
facturers are now using the technique. Another type solderless con-
nector is being used in a coaxial *able connector. This connector
uses s hardened sleeve between the insulation and braid and a softer
sleeve over the braid. The connection is made by a pressure tool On
with a ratchet so that once the stroke is started it must be
completed before the tool will release. This connector has passed all
military specifications. It is mode by Thomas & Betts Company, Inc.,
36 Butler Street, Elizabeth 1 New Jersey.
4. It is very evident that more and more attention is being
placed on automatic methods of making electrical connections. When
soldered connections must be made the automatic methods of induction
heating, dip-soldering, etc., are most desirable; however, the trend
is to use solderlese connectors where possible.
Approved For Release 2001/07/16 : CIA-RDP78-02820A000100080002-0
Approved For Release 2001/07/16 :CIA-RDP78-02820A000100080002-0
5. All of the tbove thos of!taking soldeiiees comections
are primarily applicable to production wor14 however, scam of them
stay be profitably used in the Laboratory, especially the new solder-
less coaxial connectors.
25X1 A9a
LabAICT/rkb (26 September 1956)
Distribution:
Original - Addressee
1 -
1 - R&D/EP
1 - Monthly Report
1 - O&T
1 - R&D Chrono
1 - Davie
Approved For Release 2001/07/16 :CIA-RDP78-02820A000100080002-0