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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: HP branded Amperex 6DJ8/ ECC88 tubes - Help! posted by kentaja@yahoo.com on September 22, 2004 at 08:57:21:
I have a number of the HP labeled tubes that have 78-34 in white as an HP date code and are marked in white Made in USA but with B6L4 in the second row of the etched code.I suspect these were manufactured in 1974 in Blackburn, and perhaps the Blackburn plant continued to make the "closed plate" tubes long after the Harleen plant went to the open plate design.
I also noticed that al of the Harleen manufactured A frame 6DJ8's I have are indeed open plate.
Anyone know how the Blackburn made 6DJ8 sounds?
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Follow Ups
- Re: HP branded Amperex 6DJ8/ ECC88 tubes - Help! - Ivan303 09:23:54 09/22/04 (1)
- Re: HP branded Amperex 6DJ8/ ECC88 tubes - Help! - kentaja@yahoo.com 09:39:22 09/22/04 (0)
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