Can this be doped ?

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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Thu Aug 10, 2017 7:31 pm

I have been checking my bison kit doping twice a day. Today i noticed it has shrunk :o It did have an even flat top when i pored it, now the top surface looks concave just like the continuous cone. Weird :think:
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Dr Bunsen Honeydew
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Re: Can this be doped ?

Unread post by Dr Bunsen Honeydew » Thu Aug 10, 2017 8:43 pm

It is supposed to.

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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Fri Aug 11, 2017 6:41 am

Ok Doc, i wasn't panicking honest :whistle:

I am finding this to be quite addictive, or is that the bison kit fumes ? :lol:
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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Fri Aug 11, 2017 7:59 pm

More googling of steel cabinets brought me to the Avondale Audio RMS Revelation II speakers with steel cabs and wooden top & bottom. Cabs have a curved back and crossover is external. Wow.

Found a thread on the friendly forum

http://theartofsound.net/forum/showthre ... -Avondale)

Wish i could fabricate something like that but forget the crossover. :grin:
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Re: Can this be doped ?

Unread post by Simon Hickie » Fri Aug 11, 2017 11:37 pm

And these: http://theaudiophileman.com/lemmas-xen- ... art-leema/

Note the LS3/5A comments!
“The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” George Bernard Shaw.

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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Sat Aug 12, 2017 1:27 pm

When the going gets tough the tough get going. :!:

Image

I use the chop saw for anything that will fit in its clamp. I use a jigsaw for steel up to 3mm but anything thicker than that needs an angle grinder or this Makita petrol cut off saw. Angle grinders are not the safest thing, sometimes they can fly out of your hands and do you some damage :pray: . The petrol saw is much safer in that regard, just a bit unwieldy . Wish I had a plasma cutter :cry:

Here is all the steel to go in one speaker. 8mm angle x4, 5mm plates x3.

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I put all the steel in (bluetack came in handy) and realised that with all that in I cant get the mid/bass driver in :angry-steamingears: . So one of the side plates will need to go in after the driver has been put in - tried it and it works.

Image

I have a plate for the back panel but not sure I am going to use the original back panel. Here is the Russian paper in oil 3.3uf cap.

Image

It's a big bugger :o
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hillsanddalesrover

Re: Can this be doped ?

Unread post by hillsanddalesrover » Sat Aug 12, 2017 9:20 pm

karatestu wrote:
Sat Aug 12, 2017 1:27 pm

. Here is the Russian paper in oil 3.3uf cap.

Image

It's a big bugger :o
Russian K75-10 Hybrid Paper and Polyethylene Terephthalate In Oil Capacitor
This Russian military capacitor is quite intriguing in its reported construction and in appearance that resembles a small grenade. Its dielectric is claimed to be a hybrid of paper and polyethylene terephthalate, which is essentially a type of Mylar, saturated in oil. There is some debate as to which Russian “oil” capacitor is the best, and while K40Y is widely recognized and used, some report K75-10 is the premium oil capacitor out of the Russian military.

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Re: Can this be doped ?

Unread post by _D_S_J_R_ » Sun Aug 13, 2017 10:35 am

Won't the signal voltage get lost in it? ;)
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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Mon Aug 14, 2017 4:50 pm

The signal is going to get lost in this, the premium PIO capacitor of the Russian military ;) . Cant wait to hear it.

Been busy again & a bit more done.

Image

Steel painted with hammerite black. Not had the courage yet to dope the tweeter :pray:

Found an oily substance in the gap around the neo magnet that the voice coil goes in . Is this ferrofluid ?
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Dr Bunsen Honeydew
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Re: Can this be doped ?

Unread post by Dr Bunsen Honeydew » Mon Aug 14, 2017 5:09 pm

Yes

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