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R1155 Modifications



The following list shows some previously published modifications for the R1155 receiver.





Contents Include:
Removing the DF Components.
Decoupling Capacitors.Lining Up.
Aerial Trimmer.Bandspread.
Voltage Stabiliser.RF Gain Control.Noise Limiter.
 Improving the R1155
Master and AVC/Omni Switches.
 Modifying the R1155
Faults with the 'Magic Eye'.Bias Network.
Mains Transformer Design.
 Further Modification to the R1155
Substituting EF50's for the VR91 Valves
 Noise and the R1155 Receiver
Adding a Q Multiplier Circuit
 Q Multiplier for the R1155
A Power Supply Circuit.
 PSU for the R1155
Fitting the type 35 Drive.
Shortwave and the R1155
Fitting an S meter.
 An S meter for the R1155
Modification for SSB operation.
 SSB for the R1155
Adding a Variable Bandwidth Filter to the R1155
 Variable Bandwidth Filter for the R1155
Adding an Output Stage to the R1155
 Adding an Output Stage to the R1155
Adding an extra IF stage to improve Selectivity of the R1155
 Adding an extra IF Stage to the R1155
A Top Band Converter for the R1155
 A Top Band Converter for the R1155
Another Top Band Converter for the R1155
 Another Top Band Converter
A Converter for the R1155
 R1155 Converter






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Last updated 17.5.2007


2003-2007 © Maurice Woodhead