Vintage Vivitar 2800 Auto Thyristor… Not tested.
Vivitar 2800 Auto Thyristor Electronic Flash Boxed Camera Accessory Working
Vivitar 2800 Auto Thyristor Electronic Flash Boxed Camera Accessory Untested
Two Vivitar 255 Auto Thyristor Flash Guns.
Vivitar 550FD Auto Thyristor Shoe Mount Flash - Very Good Condition
Vivitar 530FD Auto Thyristor Flash Gun Hot Shoe Untested
