The high quality, early transistorised communications receiver,was manufactured by the renowned RACAL company,and uses the circuitry of the famous Wadley-Loop.Frequency coverage is 1Mc’s –30Mc’s and standard modes of reception include S.S.B.There are four switch selected bandwiths,13kc’s,3kc’s,1kc’s and 0.2kc’s.The receiver includes a B.F.O. and 3 settings for A.G.C.The communication receiver incorporates a crystal calibrator, providing check points at 100kc’s intervals.Tuning is of digital mechanical design, with separate tuning of Mc’s and Kc’s.A.F. output is to a headphone jack on the front panel.The communication receiver will operate from 100-125 or 200-250 volts AC.

The top panel has been temporarily removed for the purpose of the purpose of allowing the internals to be seen in the photograph.The receiver is designed for rack mounting and has a standard 2U by 19" front panel.The communications receiver exhibits high standards of construction and is a desirable example of an early transistorised communications receiver by a respected UK manufacturer.It is in good used condition and in working order.A copy of the Racal manual for this receiver,which is very comprehensive and includes a full set of circuit diagrams and component layout drawings etc.,is included.,The price is$580 U.S.Dollars, which includes air freight to the USA.

The Eddystone 730/4 is a general purpose communication receiver.It uses 15 tubes (valves) and has a frequency coverage of 480kc’s to 30Mc’s,in 5 ranges;480-1120 Kc’s,1.11-2.5 Mc’s,2.5-5.7Mc’s,5.3- 12.5Mc’s and 12.3 – 30Mc’s.The communications receiver incorporates a 500kc’s crystal calibrator,signal strength meter,noise limiter,a crystal filter with phasing control,nominal bandwidth 500 c/s and an audio filter centered on 1000 c/s,nominal bandwidth 100 c/s.The receiver has a 4 position selectivity control,giving switchable bandwidths of 1.5kc’s,3kc’s,6kc’s and 12kc’s.The receiver is as would be expected of an Eddystone product,very well engineered.Eddystone, have of course become famous for the smoothness of their tuning mechanisms and the drive used in this communications receiver is a delight to use.The tuning mechanism has spring loaded,split gears to prevent backlash and the reduction ratio is approximately 140 to 1.Audio outputs are provided for both speaker and headphones.The high quality of the engineering extends to the physical construction of the set,which weighs 57lbs.The communication receiver requires an AC supply of 100-125 or 200-250 volts.The condition of this collector’s receiver is very good both internally and externally.Parts are all original and there are no modifications.As regards performance,despite being nearly half a century old,it is still working to within the original Eddystone specification.The price of this receiver is $645 US Dollars,which includes the cost of air freight to the USA.