Be sure to order early to get the 10% discount!
73s Bob W5RG
----- Forwarded Message ----- From: Jim <jimw7ry@gmail.com>To:
"amps@contesting.com" <amps@contesting.com>Sent: Wednesday, March 23, 2022,
04:08:15 PM CDTSubject: Re: [Amps] Western Electric
> Well then you need one of these Paul! :)
>
> 91 E — Western Electric - Maker of electron tubes and high fidelity
> <https://www.westernelectric.com/91e>
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> Thanks, 73, Jim W7RY
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> On 3/23/2022 11:34 AM, Paul Christensen wrote:
>> I often see an inverse relationship between money spent on high-end audio
>> gear and one's technical knowledge concerning audio engineering and
>> acoustics.
>>
>> It's amazing to see matched pairs of 5U4 rectifier tubes selling for twice
>> the price of an unmatched pair. Or, $1K+ AC line cords marketed as a design
>> derived from a DNA double-helix when home AC wiring between the receptacle
>> and service panel contains common Romex and builder-grade receptacles, some
>> of which are shared with other receptacles on a common branch circuit. But
>> somehow, none of that matters with the expensive line cord.
>>
>> I recently saw several beat-up Gates Sta-Level compressors sell in excess of
>> USD $3K each. If any of you spent time in broadcast engineering, you know
>> what these are. We junked them decades ago but now they're the Holy Grail
>> of audio compressors.
>>
>> I pay no attention to the tube v. solid-state debates and how colorful
>> adjectives are used to describe an audio experience. If there's some
>> attribute that can’t be measured, I consider it non-existent and a figment
>> of one's imagination.
>>
>> Of all the audio amp parameters I deem important, it's the damping factor.
>> Interestingly, few vacuum tube amps offer high damping factor owing to the
>> ESR of transformer secondaries. Many audio systems can be substantially
>> improved by choosing an amp with a high damping factor. Combine it with big
>> copper conductor size Romex for speaker cabling and be done with it. We
>> don’t need expensive deoxygenation nor hyper-stranding to improve skin
>> effect.
>>
>> FWIW, my home amps are 1970s vintage Marantz. They offer good performance,
>> have a high damping factor, and are still easy to repair.
>>
>> Paul, W9AC
>>
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