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Amperex 6922 / E88CC - orange PQ label, gold pins, matched pair

Amperex PQ 6922 - gold pins, premium matched pair
Price: $169.00
1 in stock
Item Number: 572
Manufacturer: Amperex

The 1967 Amperex PQ 6DJ8 / ECC88 tubes in this precisely matched pair were made in New York City and have the following characteristics:
  • creases on the top of the bottle
  • large halo getter
  • gray risers
  • orange PQ labels (partial)
  • New York factory code etched along the bottom of the glass
  • gold pins

Both tubes test as new. They are matched for both current draw (mA) and transconductance (Gm) on each triode section. These tubes are screened for gas, heater-cathode leakage, shorts, and excessive noise and microphonics. They are tested at typical operating voltages on a laboratory grade Amplitrex AT1000 (manual setting, fixed bias mode). Learn more about our testing process here

Noise and microphonics

These tubes test as “phono grade”—the quietest range for noise and microphonics—on our custom noise testing equipment. They are an excellent choice for sensitive applications such as microphone preamps, DA converters, and phono stages.

These tubes are sold as a matched pair. They ship in new white boxes with test results for current draw (mA) and transconductance (Gm). Photo is a sample pair from the lot. Singles, when available, are listed as Item 436.
TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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