I really nedeed to find this info, thank God!
SC250D GE THYRISTOR NOS ( New Old Stock ) 1PC. C258U9F250320
$39.99
GE TRIAC CONTROLLER 120VAC 15 AMPS 3AEV1B15F1 DUAl THYRISTOR SWITCH tested
$69.99
Thyristor Grip Type Flash Unit Instructions Manual Guide Vintage Paper Booklet
$14.47
Vivitar 292 Auto Thyristor Electronic Flash 1973 Vintage Paper Booklet
$18.47
SC250D GE THYRISTOR NOS ( New Old Stock ) 1PC. C258U9F250320
$58.69
$19.00
GENERAL ELECTRIC SCR button type resistance thyristor set of 8 various
$15.99
1979 Sunpak Auto 322 Thyristor Advertisement
$13.00
8 GENERAL ELECTRIC SCR Button Type Resistance Thyristor Various Capacitance
$15.99
VTG Vivitar Auto Thyristor 283 Electronic Photoflash Equipment
$20.99