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Author Topic: The RIP Thread  (Read 57716 times)

Offline S Clark

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Re: The RIP Thread
« Reply #240 on: February 17, 2024, 05:13:10 PM »
I'm sad to report that one of the most respected audio techs, Bill Thalmann, passed away about a month ago.  This guy probably fixed and upgraded more Technic SP-10 II's and III's than anyone.   He was generous with his time on the phone, and had a mastery of classic old gear.  Two of my turntables bear his stamp.   Don't know anyone that knew more about direct drive turntables. 
Good techs are a rare breed and getting rarer.   
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Offline mresseguie

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Re: The RIP Thread
« Reply #241 on: February 17, 2024, 05:17:30 PM »
Quote from: S Clark on February 17, 2024, 05:06:54 PM
The power transformer?  All transformers on this unit are Lundahl.

It doesn't look like a transformer to me. I see three transformers across the back. The object I'm asking about sits directly in front of the rear center transformer. It is almost purple with a white (or silver?) horizontal bar at top.
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Offline S Clark

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Re: The RIP Thread
« Reply #242 on: February 17, 2024, 07:58:04 PM »
OK.  Yep those are heat sinks.  Beats me what they are doing exactly. 
Here is an article on the build of this very same amp.  Maybe it sheds light...
https://www.dagogo.com/the-kk-audio-st70-boards-part-3-of-3/


« Last Edit: February 17, 2024, 08:04:04 PM by S Clark »
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Online P.I.

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Re: The RIP Thread
« Reply #243 on: February 17, 2024, 09:21:00 PM »
Quote from: S Clark on February 17, 2024, 07:58:04 PM
OK.  Yep those are heat sinks.  Beats me what they are doing exactly. 
Here is an article on the build of this very same amp.  Maybe it sheds light...
https://www.dagogo.com/the-kk-audio-st70-boards-part-3-of-3/



They operate as chimneys.  What you can't see are the through holes in the circuit board underneath the heat sinks.   As things heat up, the differing thermal coefficients cause aluminum to heat quicker than the steel chassis.  Heat rises.  Heat differential convection will create a cooling flow through the chimney.

Thermodynamics.
« Last Edit: February 17, 2024, 09:36:34 PM by P.I. »
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Offline James Edward

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Re: The RIP Thread
« Reply #244 on: April 18, 2024, 02:27:57 PM »
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Re: The RIP Thread
« Reply #245 on: April 18, 2024, 07:05:10 PM »
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Re: The RIP Thread
« Reply #246 on: April 26, 2024, 03:12:44 PM »
Mike Pinder - Mellotron Master for the Moody Blues and others.
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Offline James Edward

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Re: The RIP Thread
« Reply #247 on: April 29, 2024, 02:16:55 PM »
Andy Singer- Quite a presence on the NY audio store scene, and I believe he did some reviewing for either Stereophile or TAS.
https://forums.stevehoffman.tv/threads/andrew-singer-73-has-passed-away.1200283/
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Re: The RIP Thread
« Reply #248 on: May 02, 2024, 09:55:02 AM »
Duane Eddy - 86

Mr. Twang!
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Re: The RIP Thread
« Reply #249 on: May 14, 2024, 01:00:13 PM »
David Sandborn... damn!

Dead at 78 after a battle with prostate cancer.  🎷
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Offline Nick B

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Re: The RIP Thread
« Reply #250 on: May 14, 2024, 07:57:06 PM »
Quote from: P.I. on May 14, 2024, 01:00:13 PM
David Sandborn... damn!

Dead at 78 after a battle with prostate cancer.  🎷

https://www.nytimes.com/2024/05/13/arts/music/david-sanborn-dead.html
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Re: The RIP Thread
« Reply #251 on: June 28, 2024, 06:22:01 PM »
« Last Edit: June 28, 2024, 06:23:57 PM by P.I. »
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Offline _Scotty_

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Re: The RIP Thread
« Reply #252 on: June 30, 2024, 09:16:33 PM »
A very funny man. "whips and chains..hhhmm...Great Danes!
IYKYK
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Online P.I.

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Oh, My!
« Reply #253 on: July 23, 2024, 06:27:14 PM »
John Mayall.

He was one of the most important people in England during the '60s along with Graham Bond to kindle blues during that time.

One of the first blues albums I bought was John Mayall and the Bluesbreakers with Eric Clapton.  My first was BluesBoy King.  The next was Albert King Born under a Bad Sign... aaaand I was done and started playing Blues.
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