• Various Mini-Circuits module internals
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720306532396
  • Analysis: https://www.eevblog.com/forum/rf-microwave/a-look-inside-some-mini-circuits-modules/
• Remec ED-0421-0 15 Ghz transmitter from wireless broadband system
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720311120712
  • Analysis: https://www.eevblog.com/forum/rf-microwave/interesting-unusual-rfmicrowave-boards/msg5178864/#msg5178864
• Frequency Divider board from frequency synthesizer of Collins 651S-1 radio
  • Featuring a variety of 60's/70's flatpacks
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720312413239
• ENI 5100L 100W RF power amp: linear, broadband
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72157720057598639
• Amplifier Research AR200L 200W RF power amp: linear, broadband
  • Featuring a lot of paralleled vacuum tubes
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72157719007546820

Overlap from "test & measurement equipment" list: (https://hackaday.io/project/193010-interesting-test-measurement-teardowns)

• Teradyne microwave downconverter/demodulator from some kind of automated test equipment
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720311212854
  • Analysis: https://www.eevblog.com/forum/rf-microwave/interesting-unusual-rfmicrowave-boards/msg5181447/#msg5181447
• HP 8508A 1 Ghz vector voltmeter
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72157679633924498
    
  • Analysis: https://www.eevblog.com/forum/testgear/hp-8508a-vector-voltmeter-teardown/
• Bruker NMS120 benchtop NMR analyzer/relaxometer
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72157719470747481
  • Analysis: https://www.eevblog.com/forum/rf-microwave/bruker-nms120-benchtop-nmr-teardown/
• Stanford Research Systems CG635 2 Ghz synthesized clock generator
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72157712808699477
  • Analysis: https://www.eevblog.com/forum/rf-microwave/synthesized-clock-gen-(stanford-research-systems-cg635)-teardown-analysis/
• Rohde & Schwarz FSL 3 Ghz spectrum analyzer
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72157713488184576
  • Analysis: https://www.eevblog.com/forum/rf-microwave/rs-fsl-spectrum-analyzer-teardown-and-confusion/
    
• Rohde & Schwarz CMW 270 WiMax tester: RF front-end module
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720310910637/
  • Analysis: https://www.eevblog.com/forum/rf-microwave/interesting-unusual-rfmicrowave-boards/msg5092143/#msg5092143

Overlap from "avionics & high-reliability teardowns" list: (https://hackaday.io/project/193009-avionics-other-high-reliability-teardowns)

• Bonzer Mini-Mark Radar Altimeter
  • Includes interesting multi-Ghz RF section from the 70's
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720310364211
    
  • Analysis: https://www.eevblog.com/forum/rf-microwave/avionics-reverse-engineering-bonzer-mini-mark-radar-altimeter/
• Raytheon old military radio UHF receiver for frequency-hopping
  • Includes a frequency synthesizer built from generic digital logic
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720310359710
  • Analysis: https://www.eevblog.com/forum/rf-microwave/interesting-unusual-rfmicrowave-boards/msg5074303/#msg5074303
• Merrimac PSD-4-30.7/27741 RF Phase Shifter
  • Includes sketchy construction methods & questionable reliability
  • Photos: https://www.flickr.com/photos/147639706@N02/albums/72177720310671162
  • Analysis: https://www.eevblog.com/forum/rf-microwave/looking-inside-a-militaryaerospace-rf-phase-shifter/