• Includes two standard 8-pin octal-base adapters with dual banana plugs
• Adapters accept all popular octal-base output tube types (6V6, 6L6, EL34, KT66, KT77, KT88, 6550, etc.)
• Two high-quality 3" diameter metal and glass analog milliamp meters (100mA max)
• Additional test-pin jacks for external digital multimeter connection
• Durable vinyl-covered wood cabinet
• Requires no external power
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