Findings:

• H-Z (user)
• How to convert musical notes to their Hz equivalent
• 15734 Hz
• 10,000 Hz Legend
• 2600 Hz
• Hz
• Cleopatra 2525
• Power Macintosh 6500/250
• 250 (user)
• Barbecue for 250
• Sun Blade 2500
• Sun Enterprise 250
• Amiga 2500
• ARP 2500

If you Log in you could create a "2,525 Hz x 250 ms" node. If you don't already have an account, you can register here.