Thread: Crystal tester using a vacuum tube
View Single Post
  #2  
Old 12-20-2009, 11:24 AM
jeyurkon's Avatar
jeyurkon jeyurkon is offline
VideoKarma Member
  
Join Date: Oct 2008
Location: Central Michigan
Posts: 1,699
Thanks! I might try that. I have a bunch of used color crytals I should check out.

What's that symbol to the left of the 1K resistor that goes to 120 VAC? It looks like a transistor.

John
Reply With Quote