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References: [ +from:vk4tux@bigpond.com: 17 ]

Total 17 documents matching your query.

1. Re: [Amps] Hmmmm...Legal limit boiled the oil in the cantena (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Thu, 08 Apr 2010 06:39:07 +1000
No it was relisted; Item number: 140397488778 vk4tux _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-04/msg00232.html (8,245 bytes)

2. [Amps] GLA-1000B Issue (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Thu, 29 Apr 2010 23:45:16 +1000
Have had this amp (working ok last couple of weeks until two days ago) for a few weeks and have serviced it, cleaned all components and changed out to a good set of NOS tubes. Recently I tuned (962D
/archives//html/Amps/2010-04/msg00692.html (7,436 bytes)

3. Re: [Amps] MRF-150 Motorola, where to buy? (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Thu, 26 Aug 2010 06:52:54 +1000
Look here; http://shop.ebay.com/?_from=R40&_trksid=p3907.m570.l1313&_nkw=Motorola+MRF-150&_sacat=See-All-Categories <http://shop.ebay.com/?_from=R40&_trksid=p3907.m570.l1313&_nkw=Motorola+MRF-150&_s
/archives//html/Amps/2010-08/msg00371.html (7,666 bytes)

4. Re: [Amps] time to death in the event of a blower failure (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Tue, 09 Nov 2010 06:10:42 +1000
I am surprised that a laser thermometer sensor with a programmable safety output level has not been utilised in high end amps, with the laser set on the anode seal area to trigger a shutdown circuit
/archives//html/Amps/2010-11/msg00048.html (8,678 bytes)

5. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Sun, 19 Dec 2010 08:31:02 +1000
There seems to be a lot of confusion regarding heat transfer here. Black is not the the best colour for radiating heat, it does not radiate anything and that's what makes it black *. That also is why
/archives//html/Amps/2010-12/msg00226.html (8,795 bytes)

6. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Sun, 19 Dec 2010 16:24:17 +1000
To further prove my point, you have a black car and a white car out in the sun on a hot day. You know the black car is going to be hotter, but why is this when black is apparently such a good radiato
/archives//html/Amps/2010-12/msg00230.html (8,848 bytes)

7. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Sun, 19 Dec 2010 16:49:03 +1000
Your obviously confused between LIGHT and HEAT, read up on it a little before making such a silly statement. Mike Well with 25 years in the HVAC industry and my current university work environment wh
/archives//html/Amps/2010-12/msg00231.html (8,160 bytes)

8. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Sun, 19 Dec 2010 18:13:50 +1000
"Planck's formula predicts that a black body will radiate energy at all frequencies, but its intensity rapidly tends to zero at high frequencies (low wavelengths).# For example, a black body at room
/archives//html/Amps/2010-12/msg00238.html (12,007 bytes)

9. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Sun, 19 Dec 2010 16:05:28 +1000
Ok a black body absorbs infra red radiation very well, but how does it radiate it? For it to radiate infra red radiation then it becomes red with rise in temperature and is no longer black. The reaso
/archives//html/Amps/2010-12/msg00246.html (8,222 bytes)

10. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Mon, 20 Dec 2010 07:50:18 +1000
Ok try this idea in a perfect vacuum and see how you go regarding the black car losing heat in the dark faster than the white car. If radiation is the method of heat release then having no air/gas pr
/archives//html/Amps/2010-12/msg00257.html (9,555 bytes)

11. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Mon, 20 Dec 2010 11:16:55 +1000
Bill, after seeing this from http://en.wikipedia.org/wiki/Radiator; Radiation and convection One might expect the term "radiator" to apply to devices that transfer heat primarily bythermal radiation
/archives//html/Amps/2010-12/msg00265.html (13,437 bytes)

12. Re: [Amps] Fwd: Linear Amplifier Tuning---PROPERLY! (score: 1)
Author: "Adrian" <vk4tux@bigpond.com>
Date: Thu, 29 Dec 2011 13:20:54 -0800
. I found an easier to find download link here; http://www.linear.com/designtools/software/ Adrian ... vk4tux _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2011-12/msg00254.html (10,253 bytes)

13. Re: [Amps] SB 221 Opened up, for upgrades, repairs (score: 1)
Author: "Adrian" <vk4tux@bigpond.com>
Date: Fri, 6 Jan 2012 15:29:37 +1000
Friends, I was asked to look at and do appropriate repairs /upgrades for a Heathkit SB 221. Photo album of As-found 221, and a W8JI photo, also, are at: http://www.facebook.com/media/set/?set=a.23226
/archives//html/Amps/2012-01/msg00082.html (13,642 bytes)

14. Re: [Amps] GLA-1000B mods (score: 1)
Author: "Adrian" <vk4tux@bigpond.com>
Date: Mon, 30 Jan 2012 16:43:42 +1000
OK on that Carl, with an IM3 of -18dB at best Tom will get very unpopular on the bands. They are a terrible splatter box and produce harmonics on the vhf bands. I have seen this demonstrated first ha
/archives//html/Amps/2012-01/msg00285.html (9,375 bytes)

15. [Amps] Tubes vs. Solid State (score: 1)
Author: "Adrian" <vk4tux@bigpond.com>
Date: Wed, 2 May 2012 05:59:03 +1000
"As I recall, water can never exceed the boiling point temperature under normal atmospheric pressure. That's true at any pressure, only the boiling point varies with the pressure. Additional heat doe
/archives//html/Amps/2012-05/msg00023.html (10,653 bytes)

16. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Mon, 08 Jun 2015 17:10:01 +1000
/Just revisiting this subject, The theory of operation of a solar HWS vacuum tube for solar HWS application, using a vacuum to prevent convectional heat loss, from the black aluminium heatsink. These
/archives//html/Amps/2015-06/msg00007.html (14,643 bytes)

17. Re: [Amps] Fan for SB220 (score: 1)
Author: Adrian <vk4tux@bigpond.com>
Date: Tue, 09 Jun 2015 08:49:16 +1000
The flaw in your argument is that the object does not remain black as it heats to a point where it starts radiating thermal radiation. The fact that evacuated solar HWS tubes work so well at preventi
/archives//html/Amps/2015-06/msg00010.html (9,477 bytes)

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