Indeed!
Thanks, 73, Jim W7RY
On 3/23/2022 4:24 PM, Bob Gibson via Amps wrote:
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>
Thanks, 73, Jim W7RY
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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