Suggested Oscilloscopes:
For RF and AF Monitoring

(These can be found on e-Bay for under $200)

• Tektronix 2213, 2215a, 2221a, 2224, 2225, 2230, 2232, 2235a, 2236, 2245, 2246, 2247, 2252, 2337, 2220, and 465B
  
• BK 1541A, 1570, 1570A, 2125A and 2160
  
• INSTEK GOS-635G
  
• Beckman 9106
  
• Leader LBO-518, LBO-526