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Post by Eduardo Wobblechops on Aug 21, 2015 8:34:00 GMT
Aye, I tend to over spec the resistors too.
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Post by Sovereign on Aug 21, 2015 9:06:40 GMT
Do you mean higher rating resistors?
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Post by Deleted on Aug 21, 2015 9:28:25 GMT
Aye, I tend to over spec the resistors too. You have to the smoke always worries mums I found, think she thought I was a smoke sniffer, she never found the glue he he That's why I speak now like I have peg on my nose, never sniff IS12 Kids. |
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Post by Eduardo Wobblechops on Aug 21, 2015 9:33:04 GMT
Do you mean higher rating resistors? Yeah, I usually up the wattage rating from what's required. |
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Post by pre65 on Aug 21, 2015 11:26:20 GMT
Do you mean higher rating resistors? Yeah, I usually up the wattage rating from what's required.  |
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Post by Deleted on Aug 21, 2015 12:58:21 GMT
I like the 300W resistors you can buy for soft start and dummy loads. I have a few and have only ever killed one.  And a £35.00 each it gets interesting when the ends blow out. |
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Post by pre65 on Aug 21, 2015 13:04:39 GMT
I've never used anything bigger than 100W. 
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Post by Deleted on Aug 21, 2015 13:24:13 GMT
Coward I like smoke and bangs so bigger the better odd that seems to go with women as well Oh must get my oil changed in my head. slurp gurgle plop.
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Post by MartinT on Aug 22, 2015 7:16:48 GMT
Just me, but I would stand the higher wattage resistors off the board a little, for better cooling. Me too, I put little kinks in the legs to stand them proud of the board. |
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Post by Deleted on Aug 25, 2015 8:07:44 GMT
I fold the leg under tight, because if the resistor get so hot it can glow, the solder will melt anyway to prevent the resistor from falling out. Under the resistor I normally use on double sided PCB leaving a layer of copper, this reflex a little and absorbs a little of the heat. Also if the resistor get that hot the value will change,and since I well over spec them it should not happen, if it does something else is dead anyway. I use to mount them with ceramic tubes , so as to keep the tight and allow convection. But this proved to a waste of time again as I over spec them. I like Bifilar resistors but the cost is far too high for DIY, as paying £10 + for a FET,s seem to put people off anyway. Of course we never mount SMD 2512 2W resistors of the PCB do we.  |
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Post by MartinT on Aug 26, 2015 5:57:53 GMT
Congratulations on restarting your life with a new business, Colin!
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Post by John on Aug 26, 2015 17:38:09 GMT
Yes agree
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Post by Deleted on Aug 26, 2015 19:47:24 GMT
Thanks guys, it not started yet but with luck it will pick up soon. But no RR soon.
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Post by Deleted on Sept 2, 2015 9:52:39 GMT
At last people are having great success in making the kits with some lovely comments on the sound.
Thank you all for your support.
Thanks you
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Post by Sovereign on Sept 3, 2015 8:49:41 GMT
I'm just about to place an order for the toroids from my own supplier because I believe there is a lot of difference between off the peg toroids and ones made specify for the job in hand.
If anyone else is interested in some super high quality toroids
rated at 350Va
Electrostatic screen
GOSS band
High quality core run at very low flux density Delivered for £150 for the pair, or if you wanted them at the specified 225Va then the price would come down, let me know.
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Post by Deleted on Sept 15, 2015 8:10:19 GMT
Many people have now completed the SECA amp and they all look FAB well done all. And June yours look cool in pink, nice.
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Post by MartinT on Sept 15, 2015 9:58:14 GMT
How about one of you writing up a full review of your SECA in a new thread?
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Post by Sovereign on Sept 15, 2015 13:57:41 GMT
Thats a great idea
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Post by Deleted on Sept 15, 2015 16:50:15 GMT
OK will I be too biased ?? Martin
James no fish were killed in this design. he he sorry mate.
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Post by MartinT on Sept 15, 2015 20:11:50 GMT
OK will I be too biased ?? Martin LOL, Colin - just a bit! I'm sure there are several members among those who bought your boards or kits who could do a good write-up of why they chose the SECA and how it's performing for them |
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