• Automatically tests Hi-Fi/guitar amplifier valves and displays their condition
  • Simplicity of operation
  • Portable and Convenient
  • Greatly improved algorithms
  • Rugged design
  • Improved test sockets
  • Capability to test other valve types such as rectifiers with expansion modules
  • Valve failure mode fault indication
  • All valves tested under higher current
Shipping Info

Derringers has two options for your product delivery. We offer FREE Shipping for orders over $100 (except bulky items requiring specialist delivery) to anywhere in Australia, but if you need your gear urgently, then we also offer an Express Delivery service.

Returns Policy

Within 30 days of receiving your order you may return it to us (providing it is unopened and in perfect condition) for a refund, exchange or credit. Items that have been opened (even if unused) may be accepted back at our discretion for store credit or exchange only. Some products are excuded. Click here to read our full returns policy.