RCA
150,000
MULLARD
180,000 
1,000
U.S.A
120,000 500
RCA
100,000 1,000
PHILCO
50,000 350
테슬라
90,000 450
RCA
120,000 450
필립스
90,000 400
Haltron
120,000 450
RCA
160,000 1,600
CETRON
90,000 800
MULLARD
0
TELEFUNKEN
0 1,700
RCA
110,000 600
영국
180,000
G.E.C
450,000 3,200
GeneralElectric
110,000 1,100
