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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: Gold tube pins: All that's gold is not glitter posted by Bambi B on February 21, 2007 at 06:24:57:
Firstly, simply to endorse much of what you write. I do wonder if the manufacture and use of gold pins might also signify, at certain times, use of tube in hard-to-access or remote locations by end-user. The desire to develop long life variants surely comes partly from use of tube in difficult-to-access places, cutting labour costs to access and maintain; with the advantages presented by the use of gold pins, as you mention, apropos stable contact over longer periods of time, particularly in environments where steel might oxidize or corrode to the point of impaired contact, gold on the pins of ‘premium’ versions would seem a sound commercial step. However, as to some simple correlation between gold pins and ‘sound’, I do not hold this to be so [not that I would attribute that sentiment to you, clearly]: some of my favourite sounding 6922s/E88CCs & 6DJ8s/ECC88s are orange globe Amperex 6DJ8/ECC88s (A frame, pole with dimpled disc, etc.) manufactured in the 1960s, all with steel pins; however, I also find German and Dutch manufacture Valvo E88CCs, with gold pins, to be comparable to, but differentially valid with, those favourite Amperex tubes. When it comes to 5687s, my preference is for the Tung Sol 50s production — no gold pins — against the Sylvania GB5687 with gold pins; indeed, I would prefer the GE***** with ‘holed plate’ circa post 1962 production to the GB5687.
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Follow Ups
- Re: Gold tube pins: All that's gold is not glitter - Seán 00:52:49 02/22/07 (1)
- Gold tube pins use - Bambi B 07:44:17 02/22/07 (0)
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