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PostPosted: Wed Oct 20, 2021 4:18 pm 
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Friend
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Joined: Tue Nov 05, 2019 4:31 pm
Posts: 39
I built my Triwatt into a combo and it has the KT66's in it. Yes it does get hot.
I've used it in peak summer at various shows, indoor and outdoor with zero issues. I was thinking of possibly hooking up a small computer type cooling fan like my Mesa MK3 has but I've had it two years, constant use and zero issues so whether it's more trouble than it's worth I can't say at this point.


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PostPosted: Fri Oct 29, 2021 12:31 pm 
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Holy Ghost
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Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada
These are JJ TC 529 50+50

The specs are here:
https://www.jj-electronic.com/images/st ... EN_web.pdf

If you are concerned, wrap a little reflective aluminum tape around the side facing the tubes.

I have yet not heard of a heat related issue
in combos (or heads for that matter)

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Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps


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PostPosted: Tue Nov 30, 2021 6:57 pm 
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Joined: Sat Dec 04, 2010 3:42 pm
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Location: Qualicum Beach, BC
Sounds like heat isn't an issue, but adding reflective tape, as Stephen said, wouldn't hurt.
Hiwatts had an aluminum heatshield between the output tubes and the filter capacitors. Like on this DR504 clone with EL34s that I built several years ago.


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Last edited by mitch m on Wed Dec 15, 2021 11:52 pm, edited 1 time in total.
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PostPosted: Tue Nov 30, 2021 7:46 pm 
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Holy Ghost
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I like the isea of the heat shield for the bigger tubes.

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