Mullard Blackburn 6DJ8 ECC88 Tubes, Matched Quad, NOS Testing

Hello – I have a matched quad of Mullard Blackburn ECC88 6DJ8 Tubes for sale.

These tubes have gray plates and halo getters. The etched codes indicate that they were made at the Black burn factory in Great Britain in 1969.

These are NOS testing tubes.

TV-7/B test results: 90/95, 100/100, 100/100 and 95/95. Minimum is 62.

All tubes are tested on my calibrated TV-7/B or on my calibrated Hickok 539C. All of these tubes have been tested for transconductance, shorts, gas, leakage and life. All tubes meet or exceed manufacturer published specifications of transconductance (Gm) for the specified tube type. All tests are tested twice – prior to the listing and prior to shipping.

Please e-mail me if you have any questions.

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If you don’t see the tubes you are looking for, please contact me.

Be sure and click on the “other items’ link for more tubes.

I will ship international.

Free shipping in the USA.

Canadian shipping is $14.00 and international shipping by first class is $18.00.

Your tubes will be carefully packed.

No charge for paypal.

Please check my feedback and buy with confidence.