Restoration of the Breting 40 Receiver

Breting 40 Receiver Restoration


Author: Edgardo Castro Bruse
Author: YS1ECB
AUGUSTO EDGARDO CASTRO BRUSE
Calle Loma Linda
Residencial Loma Linda casa No. 4
Col. San Benito.
San Salvador. El Salvador.

San Salvador , January 17, 2014



Introduction
Breting 40 Receiver This interesting receiver was bought by a friend of mine, and while tracing its where about, it turned out to belong to a ham radio pioneer Eng. Miguel Angel Sol, YS1MS. In view of this I put a lot of time, effort and work to repair this radio to honor YS1MS and to provide my friend Mr. Salvador Galdamez, and the radio enthusiasts with information on a restored and working Breting 40 receiver.
This is a unique radio in several aspects. Since not very many were produced in the Breting Factory, at Los Angeles, California. I think it may be the only one in El Salvador and perhaps in Central America.

Breting 40 Receiver restoration Breting 40 Receiver chassis Breting 40 Receiver parts Breting 40 chassis


Radio before Restoration
The chassis was carefully cleaned by the owner who took a few pictures. Later I took many more pictures in order to help the viewer identify the complete wiring, and some particular areas that are of interest to any one attempting to repair the Breting 40 receiver. Please click on images to enlarge.


Receiver before restoration Breting 40 before restoration old receiver before restoration Breting 40 before parts replacing old receiver before parts replacing
old radio: before parts replacing Breting 40 inside view Breting 40 components before Receiver components before replacing old receiver connections view


Radio after Restoration
All paper condensers were measured for leakage, and all but one had a leakage greater than 80 microamperes, therefore all were replaced. All mica condensers were left in place and all resistors that had a change in value greater than about 35% were replaced. The original wiring of the Breting 40 is unique in that, all leads are only inserted at the connection point, and not bent and tighten as in any other brand of radio. This makes the replacement of any resistance or condenser a lot easier. To see the new wiring, please click on images to enlarge.

Receiver after restoration Breting 40 after restoration old receiver after restoration Breting 40 after parts replacing old receiver after parts replacing
old radio: after parts replacing Breting 40 inside view Breting 40 components after Receiver components after replacing old receiver connections view



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