Vivitar Zoom Thyristor 2500 Flash Gun - Working

Vivitar Zoom Thyristor 2500 Flash

Vivitar Zoom Thyristor 3500 DM/C Flash for Canon/Olympus OM10 20 30 etc WORKING

Vivitar Zoom Thyristor 3500 Flash for Spares / Repair

VIVITAR 45 Compact Electronic Flash with Manual

Vivitar Zoom Thyristor 3500 Flash with Canon Module - Great Off Camera Flash

Vivitar Zoom Thyristor 3500 Film Flash Gun with Manual Working

Vintage Vivitar 3500 Zoom Thyristor Flash Kit for Canon Boxed with DM/C Module