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Old 13th December 2012, 06:52 AM   #231
RKH is offline RKH  United States
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RdK 845 - V3 (2) , PSU (2) - Yes
RusselC - V2, PSU - Yes
Dane - V2, PSU - Yes
mkoerner - V2 (2), V3 (1)
mordikai - V2 (2), PSU - yes
mordikai - V3 (2), PSU - yes
sts9fan - V3, PSU - yes
Naturlyd - V2 (2), V3 (2), PSU - yes
Wijgers - V2, PSU - no
SRMcGee - V3, PSU - yes
skunark - V3, PSU - yes
Tytte71 - V3, PSU - yes
Bugzbunny - V3 (2), PSU - Yes
Kvorning- V3(2), PSU -Yes
wjh - V2, PSU - yes
backefel - V2, PSU -yes
Lo_Tse - V3, PSU - no
RKH - V3, PSU - yes
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Old 13th December 2012, 08:25 PM   #232
buzzforb is offline buzzforb  United States
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OK guys. Need a response on this one. I was hoping to get Panasonic T-HA 63V, 18mF ($7.70/cap)caps, due to their quality and longevity. This is basically their best product in large caps. We have a problem on that front. They do not have qty to fill our need and the wait is almost 4 months for more. We can drop down to the TSUP series 50V 22,000uF($5.65/cap) caps and get them cheaper and immediately, or wait on the beefier T-HA. I have been using the TSUP and they are fine, but liked the idea of upgrade. The choice is yours. Please respond with opinions.
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Old 13th December 2012, 08:32 PM   #233
mkoerner is offline mkoerner  Germany
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Old 13th December 2012, 08:32 PM   #234
6L6 is offline 6L6  United States
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The TS-UP is a fine cap, and I doubt that the increase in price for the T-HA will give a similar increase in performance, especially when the difference in capacitance is taken into account.








(I am going to wait until the next round of group buy, so take my comments with a grain of salt...)
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Old 13th December 2012, 08:47 PM   #235
buzzforb is offline buzzforb  United States
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I would tend to agree with 6L6 on performance. The greatest benefit is longer life and higher current rating at temperature. The T-HA can handle about twice as much current at the temps we are talking about inside amp case. I suggested because for some, this will be the last amp they build and may want the longevity.
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Old 13th December 2012, 09:04 PM   #236
Russellc is online now Russellc  United States
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I'll be happy to go with the general flow. My only concern is if there is sufficient capacitance so that it wont hum. Used the TSUP with no problems myself.

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Old 13th December 2012, 09:30 PM   #237
6L6 is offline 6L6  United States
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Quote:
Originally Posted by buzzforb View Post
The greatest benefit is longer life and higher current rating at temperature. The T-HA can handle about twice as much current at the temps we are talking about inside amp case. I suggested because for some, this will be the last amp they build and may want the longevity.
And that is a very important consideration.

In terms of implementation, regardless of capacitor chosen, I would endeavor to ventilate the interior of the case as much as possible, to minimize the overall temperature. (Which, of course, is good for all the components, especially the caps.)
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Old 13th December 2012, 09:33 PM   #238
buzzforb is offline buzzforb  United States
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Couldnt agree more, especially when considering V3 implementation. Most undersestimate temoerature and its effects on performance and longevity.
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Old 13th December 2012, 10:02 PM   #239
rdk845 is offline rdk845  United States
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In my case, waiting time of 4 month or more is a deal killer for the cap. Want to run this as winter amp, will use less in Summer.
Since I will be doing mono blocks I will have smaller foot print per block than stereo case, so I can afford to use mechanically weaker perforated sheet for top and bottom to maximize the ventilation. Within well ventilated case, the cap temperature would be considerably lower than the heat sink temperature.

Last edited by rdk845; 13th December 2012 at 10:05 PM.
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Old 13th December 2012, 10:07 PM   #240
buzzforb is offline buzzforb  United States
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It seems like the TSUP caps are the way to go. Very good, cheaper, and brings the price down pretty considerably for the PSU cost.
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