Yes, but I was stubborn 🙂.
My chosen layout and heat sink height does not give much flexibility with mounting arrangements:
http://www.diyaudio.com/forums/solid-state/192431-class-ab-amp-diyaudio-30.html#post2719715
My only options now are to drill/tap a new set of 13 holes 1/2" away from the current set and live with the asymmetry, or to start again with a fresh
($$$) heat sink.
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I must say I didn't check every voltage across the 0.22 resistors last time but only adjusted by the test points. This time it will happen though. All transistors weren't hot though and heatsink was at hottest luke warm.
Regard
Simon
Regard
Simon
That's a nice looking board you got there. Though I'm biased with OS's approach because I love those casings with the heatsinks at the sides ala Krell.
You're right, I hope someday (in our lifetime) heatsink prices drops like a rock... though I doubt it... 😀
^not if that is a genuine nylon, besides those trannies do not heat up that much if at all.....🙂
I have used the same in my more than 8 year old diy amp and so far I see no problem. The cable tie I used is somewhat stretchable and not that brittle.
I'd welcome it very much if you have a better technique to share.
you can also use this "panduit" stainless steel ty-wraps.......Stainless Steel Cable Ties, Permanent Identification
Yes, as mlloyd1 pointed out, I would expect heat shrink to work quite well. Superior to cable ties? Perhaps not significantly so.
Thanks tony, those things looks real sturdy...
thanks, that's a great idea and should really work well too..
I'd stick with the cable ties for now, will try the heat shrink tubes in another project though...
There's one vote, anybody else? 😀
I actually have both sets of the MJW and the MJL... I'm just looking for enough reason to use the bigger ones I guess... 😀
If you are using multiple pairs then the little brother may give adequate cooling/dissipation.
If you are using big brother than a one pair output stage is more feasible.
If you are using big brother than a one pair output stage is more feasible.
Excellent point, I might just be wasting Big Brother for this amp if 3 pairs of Baby Brother is more than enough...
That's one point each for Big Brother and Baby Brother then... 😀