As some of the best-looking receivers that Collins produced you definitely want your 51J to perform like that company's best equipment should.
I've included lots of photos and detailed descriptions for rebuilding or repairing.
Are they experiencing all that the 51J is capable of? The following article details how to get the most out of your 51J receiver.Īlso, a look at some of the common problems encountered when delving into any of the 51J receivers. Many users are operating their 51J receivers in 'as-found' condition. Click on thumbnails for larger pictures.Ĭollins 51J Rebuild Radio Boulevard Western Historic Radio Museum Rebuilding the Collins 51J Series Receivers (includes 51J-1, 2, 3, 4 & R-388/URR) Brief History - Circuit and Design Description General Information on the 51J Series Rebuilding the 51J-2, Rebuilding the R-388/URR Servicing and Alignment of the 51J-4 Receiver by: Henry Rogers WA7YBS/WHRM photo above: Artwork drawing of the 51J-4 from the manual Many Collins Radio enthusiasts believe the 51J Series comprises the best looking receivers that the company produced - but, what about 51J performance? Like many pieces of collectible vintage electronic gear, the 51J receivers are now over half-a-century old. He gives it a 5 star out of a 5 star rating system. Osterman, in his book Short Wave Receivers Past and Present, lists this receiver as scarce and notes that the price for used ones are going from $1,100 to $2,100.
The power cord receptacle has been replaced with a standard 3-prong socket but is very nicely done and is the only modification that has been done to the receiver. The serial number is 18XX and the date on the calibrator crystal is June 1962.
The 51S-1 is a quality communications receiver, built mainly for commercial and military use.