RACAL
This section of my website lists and describes the various Racal receivers and associated hardware in my collection. Ironically, my first encounter with a Racal receiver, namely an RA17 with the serial number N664, was somewhat under-whelming; but as will become clear later there was a reason for that. Over the years I have set myself the task of having at least one Racal receiver from each of the decades between the 1950s and the 1990s, when Racal ceased to exist (as a brand).
RACAL Projects
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Restoration of a MKI Racal RA17
January 1, 2009
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The Wadley Loop Explained
March 1, 2009
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Restoration of another MKI Racal RA17
March 26, 2009
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The Racal RA1217
October 1, 2010
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Racal MA.259 Ser. No. 1
July 1, 2011
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The Racal RA117
September 1, 2012
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ISB Adapter type RA218
October 1, 2012
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Custom Interface Unit
November 1, 2012
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Is your RA17 a MKI or MKII?
February 15, 2013
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The Racal RA117E
January 21, 2015
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The Racal RA137A
August 6, 2015
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Racal MA251 Buffer Amplifier
September 8, 2015
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The SA97 Wobbulator
November 9, 2015
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The Racal RA37A
November 23, 2015
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The Racal RA1792
September 14, 2016
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Racal Sideband Adapters
February 1, 2017
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The Racal RA98
February 6, 2017
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The Racal RA63
February 16, 2017
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The RA3700 Series
June 12, 2017
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The RA3701 HF Receiver
June 22, 2017
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The RA3712 Dual HF Receiver
April 4, 2018
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Collins R-390/URR versus Racal RA17L
September 1, 2018
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The Racal RA121
September 5, 2019
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The MA3752 Dual HF Drive Unit
September 16, 2019
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The RA3702 Dual HF Receiver
September 17, 2019
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The TA3762 250W Linear Amplifier
September 17, 2019
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The MA3772 1KW HF Combiner
September 18, 2019
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RA17 MKI Ser. N54
November 30, 2019
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A new 1MHz Osc. for the RA1217
March 19, 2020
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RA17 L-C Filter problem solved!
August 25, 2020
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RA17 MKII Ser. N2751
December 12, 2020
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The MA3752 driving a TA3762 PA
January 18, 2021
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Using the Rigol DSA815-TG to align filters in the RA17 series
March 17, 2021
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The MA79 Transmitter Drive Unit
May 30, 2022
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Poor Man's MA350
July 4, 2022
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Power Amplifier Type MM420
October 25, 2023
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RA117A N0959
February 13, 2024
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How it might have been
March 1, 2024
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Automatic Preselector MA1101A
June 26, 2024
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Racal TRA3755 DSP Transceiver
August 2, 2024
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Racal RA66B Panoramic Adaptor
August 10, 2024
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LF Converter Type RA237B
September 5, 2024