Go Back   Home > Forums > > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Thread Tools Search this Thread
Old 4th October 2010, 02:05 AM   #1
dr0ss is offline dr0ss  United States
diyAudio Member
Join Date: Aug 2010
Default heat sources in SSE

I finally have some time to put my SSE together, and I've been working on the enclosure. This will be a more-or-less completely enclosed amp made of wood, so I need to pay special attention to how the ventilation works (especially since I live in the tropics). My current plans have good airflow to the parts I know to be major heat producers: transformers, the tubes, and the big resistors.

The power supply choke however is tucked away and surrounded around 75% by support walls. If this is likely to be a problem I can make some modifications and even add a heat sink or fan, but first I'd like to be sure it is going to be a necessity. Is this a part that tends to run hot? Are there any other extra-hot-spots I should be paying attention to?

Thanks, David
  Reply With Quote
Old 4th October 2010, 02:20 AM   #2
Tubelab_com is offline Tubelab_com  United States
diyAudio Member
Tubelab_com's Avatar
Join Date: Jul 2005
Location: West Virginia panhandle
The choke should not get hot. The output transformers should not get hot unless they absorb radiant heat from nearby tubes. The power transformer, the tubes, and the 3 five watt resistors are the big heat producers.

The Industrial amp that I built on my web site is too small with zero ventillation under the chassis. The entire circuit board and the choke is under the deck. The amp gets too hot especially since I am running my power transformer way above its recommended current, but it hasn't missed a beat since day one.

If you put the whole amp in a box, you need a vent on the top to let the heat out, but you also need an unobstructed air entry on the bottom to let cool air in.
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  Reply With Quote
Old 4th October 2010, 04:19 AM   #3
dr0ss is offline dr0ss  United States
diyAudio Member
Join Date: Aug 2010
Thanks, this is useful.

This is going to be a fairly small amp; the interior dimensions are 8"dx12"wx6.5"h, and everything will be shoehorned inside, including the tubes and iron. No doubt I'll regret the decision to go this small, but it was so much fun finding a layout where this was even possible that I am determined to go through with it. The biggest problem was finding a good spot for the choke, which is both heavy and an awkward shape. Where I have it now is very convenient, but when I noticed that the resistor that the choke replaces was 5W I started to worry.

Thanks again,
  Reply With Quote


heat sources in SSEHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
possible problem with sse royd55 Tubelab 1 19th July 2010 03:16 PM
Auricaps in SSE and SSE as a guitar amp. DanP Tubelab 5 12th July 2010 09:20 AM
possible problem with my sse royd55 Tubelab 4 1st March 2010 04:15 PM
pics of my sse royd55 Tubelab 1 26th February 2010 09:39 PM
Heat Sink Sources? DDF Chip Amps 12 22nd March 2005 01:51 AM

New To Site? Need Help?

All times are GMT. The time now is 03:58 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio