Cabinet restoration & mechanical repairs
Having restored a 738 Silver Marshall Short Wave Converter from ground up, and after enjoying shortwave listening with it, I decided to venture into the world of the shortwave converters.Some time, in October of 2007, I bought a Stewart-Warner 301-A shortwave converter that looked like the perfect subject for restoration. The converter looked like shown in photos: (Click images to... read more >>

R-113: introduction & cabinet restoration
Between 1931 and 1934 Stewart-Warner made at least four models of shortwave converters. All of which had the same basic design.The most important differences were:  a) The kind of tubes used.  b)The way the filaments were fed.  c) The kind of band switch used. The band switch used by the R-113 is by far superior to the one used by the 301-A, and... read more >>

KA-116: introduction & chassis
IntroductionIn late October 2009, while visiting short wave converter, I came across the description of the KA-116, russian made, short wave converter. The design of this converter intrigued me, and at the same time it remainded me of a USA made converter called "The Sumariner", which diagram and photo were published in the October 1931 issue of "Radio News". I... read more >>

Stewart-Warner 345 radio overview
Stewart Warner model 345 battery operated receiver, circa 1926. It would have been one of the later battery operated radios as most makers began producting AC radios in the late 1920's.The Stewart-Warner 345 is a TRF receiver using six 01-A tubes. The first stage is an untuned (aperiodic) RF Stage, coupling the antenna to the radio. The second and third... read more >>