This is my version of Macroman' Cathode Throbber.

 

I used the following parts to build it: Mappers Code
5 x 47K resistors
(M47K)
1 x 1K resistor (M1K0)
1 x 100K resistor (M100K)
2 x 12K resistors (M12K)
1 x 470K horizontal preset (UH08J)
2 x 47K horizontal preset (UH05F)
1 x 47uF 16V capacitor (VH11M)
1 x LM324N opamp (UF26D)
2 x MJE3055 (This is actually a TIP3055) (QH56L)
Tripad Board
(JP52)
Miniature Sloping Case ((KC96E)