Amperex Bugle Boy ECC88/ 6DJ8ECC88/ 6DJ8Amperex Bugle Boy ECC88/ 6DJ8 ECC88/ 6DJ8 Very NiceUp for your consideration are 2 pairs of Amperex ECC88/ 6DJ8 pre-amplifier tubes. All of them are made in made legendary Holand Heerlen plant before 1967. They are among the most musically enj...145.00

Amperex Bugle Boy ECC88/ 6DJ8 ECC88/ 6DJ8 Very Nice [Expired]


no longer for sale

Up for your consideration are 2 pairs of Amperex ECC88/ 6DJ8 pre-amplifier tubes. All of them are made in made legendary Holand Heerlen plant before 1967. They are among the most musically enjoyable and engaging tubes ever made, and known for natural midrange with hugh soundstage, three dimensional imaging. They have great dynamics including excellent bass/mid bass punch and are always musical. These Amperex 6DJ8 tubes will be a huge upgrade for your tube equipment. All of them are famous Bugle Boy tubes. 2 of them have Bugle Boy logo, and the other 2 are relabeled as Hewlett Packard. ************************************************************************** First pair: Bugle Boy logo. Date codes: Delta 5A4 & Delta 5F3 (both were made in year 1965). They are identical in construction. Shorts Test: Passed Gas Test: Passed Matching: As you can see in the Gm values, these are well matched within 8% for all 4 sections Listening Test: Very good noise characteristics with no ringing Gm Test: Both tubes tested like new and closely matched with no issues. Results are as follows: Tube #1 Triode Section 1: 12800 Triode Section 2: 12300 Tube #2 Triode Section 1: 12500 Triode Section 2: 13300 Where minimum good is 7750 Spec for new is 12500 ***************************************************************************** Second pair: Hewlett Packard label. Date codes: Delta 3A4 & Delta 3A3 (both were made in year 1963). They are identical in construction. Shorts Test: Passed Gas Test: Passed Matching: As you can see in the Gm values, these are well matched within 9% for all 4 sections Listening Test: Very good noise characteristics with no ringing Gm Test: Both tubes tested like new and closely matched with no issues. Results are as follows: Tube #1 Triode Section 1: 12000 Triode Section 2: 11000 Tube #2 Triode Section 1: 11700 Triode Section 2: 11200 Where minimum good is 7750 Spec for new is 12500 ****************************************************************************** All tubes are tested by Hickok 539C vacuum tube tester. Shipping $8.95
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wackyjack 

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