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#26 pre amp
#26 pre amp
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Old 27th March 2013, 06:03 PM   #2981
stajo is offline stajo  Sweden
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#26 pre amp
I'd lengthen the potshaft instead, much easyer. I have 6 mm alutubes that I use, but a wooden flowerpin works if you have some sturdy glue armored with whatever you can find.
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Old 27th March 2013, 06:03 PM   #2982
Bas Horneman is offline Bas Horneman  Netherlands
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Quote:
I have wood drill like you suggested but for aluminum do you believe can works?
Depens how hard the aluminium is. But I believe it should be possible. Perhaps you could try on a different piece of aluminium first.
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Old 27th March 2013, 06:05 PM   #2983
Bas Horneman is offline Bas Horneman  Netherlands
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Quote:
I'd lengthen the potshaft instead, much easyer.
Ofcourse! Duh! Why did I not think of that. That is a good option.
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Old 27th March 2013, 06:49 PM   #2984
CV6045 is offline CV6045  United Kingdom
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Default Front panel

If I understand you correctly....take of the Front Panel........Drill the appropriate hole in the Chassis to mount the POT........then Drill a much Larger hole in the Front Panel (just slightly larger than the Nut holding the Pot)...... replace the Front Panel... and with the right sized Knob it should cover the hole

Quote:
Originally Posted by merlin el mago View Post
I need to reduce the fron plate to install the pot, who knows how I can do it?
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Old 27th March 2013, 06:50 PM   #2985
Bas Horneman is offline Bas Horneman  Netherlands
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The only drawback is that you need a bracket inside the amp that will hold the pot.
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Old 27th March 2013, 07:00 PM   #2986
merlin el mago is offline merlin el mago
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Wood drill works
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Old 27th March 2013, 07:03 PM   #2987
Bas Horneman is offline Bas Horneman  Netherlands
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I normally do this in wood. So I dont drill a pilot hole where the shaft goes through. Otherwise the wood drill doesnt center well. I the drill a large hole for the pot only from the insde out.
But in this case drilling a hole large enough for the mounting nut from the front a better idea if the shaft is long enough
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Old 27th March 2013, 07:19 PM   #2988
merlin el mago is offline merlin el mago
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Finished work
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Old 27th March 2013, 07:20 PM   #2989
amandarae is offline amandarae  United States
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Quote:
Originally Posted by merlin el mago View Post
Yes my chassis front plate have 10mm is too broad/widht and can't fix the pot.
Hello Felipe,

I had the same predicament with my Gold Point attenuator. I took mine to a machine shop and have it tapped (M10 x 0.75) from the inside all the way to the front so that I have the full lenght of the shaft on the front side.

Or have it "counter bore" 5mm from the inside is another option too. This way, the plate holds the pot not the chassis as it will be a pain to install another bracket on the chassis from my layout.

Abe
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Old 27th March 2013, 07:25 PM   #2990
iko is offline iko  Canada
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#26 pre amp
Looks good. Are you going to run any measurements on it? Noise, thd, square waves, stuff like that?
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