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

Amperex 6922 / E88CC - PQ label, gold pins, matched pair
Price: $209.00
1 matched pair in stock
Item Number: 572
Manufacturer: Amperex
The 1966 Amperex 6922 tubes in this precisely matched pair are premium quality 6DJ8 / ECC88 tubes.
 
Both tubes have the following characteristics:
  • creases on top of the bottles
  • the Heerlen, Holland factory code and 1966 date codes etched in the glass
  • gray risers
  • round shield with two raised rectangular sections on opposite sides
  • large O getters with wide support
  • orange labels with the Amperex PQ label
  • gold pins
Testing

Both tubes test as new with balanced sections. 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 “preamp grade” on our custom noise testing equipment. They are quiet enough for all but the most
sensitive applications.
 
Pricing

These tubes are sold as a matched pair. They ship in new white boxes with test results for each triode section. Photo is of the actual tubes.

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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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