Cheap as Chips

What people are working on at the moment
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Mike H
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#31 Re: Cheap as Chips

Post by Mike H »

Yes I think the LM3886 circuit has way too much gain for what you want, surely its feedback loop values can be changed to reduce it?

Can the EF95 stage be changed to cathode follower?

Also DC heater supply may help with the hum. (?)
 
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little eddy
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#32 Re: Cheap as Chips

Post by little eddy »

Fortunately the tx that I salvaged from the little stereo also had a 17V winding so with the valve heaters pre-wired in series was quite lucky.

Had an old regulated supply and used that for the heaters, (I had a heater board of Andrews but wouldn't qualify as being 'cheap as chips'). Hum reduced quite a bit so hopeful that with an earth lift circuit and better wiring, should be further improved.

Now just need to shoehorn all the bits into that small chassis.

Must get the bench tidied up!
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#33 Re: Cheap as Chips

Post by simon »

Bench looks fine to me Mike...
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Dave the bass
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#34 Re: Cheap as Chips

Post by Dave the bass »

Needs maybe a reel of Gaffer tape to counterbalance the highly visible can of WD40 but other than that, no prob's there, agreed.
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Mike H
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#35 Re: Cheap as Chips

Post by Mike H »

Always gotta have a roll of gaffer tape... just for show...
 
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Paul Barker
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#36 Re: Cheap as Chips

Post by Paul Barker »

The only way to really make sure you are top dog is to take all that stuff, plonk it on the dining table and see what the effect is.

Either you maintain your position as top dog or you need to win it back. If you fail, leave the pack and find some different followers, but next time Mark your territory better.
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jack
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#37 Re: Cheap as Chips

Post by jack »

little eddy wrote:Must get the bench tidied up!
Looks good to me - that nice Record vice looks useful and well used !
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little eddy
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#38 Re: Cheap as Chips

Post by little eddy »

Well got it finished for daughter's Xmas present. With some used Mission bookshelf 760i speakers I picked up, system cost around £100.

Never got rid of that small amount of hum but doesn't sound bad at all.

Not too displeased with how it looks either.
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Mike H
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#39 Re: Cheap as Chips

Post by Mike H »

Congrats! :thumbright:
 
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Paul Barker
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#40 Re: Cheap as Chips

Post by Paul Barker »

That's good stiling.

I like the salvaged old equipment look.

I recon the best look is Josh Stippich, but considering he was already well on the way with his style by the time of VSAC 2003 he was way ahead of his time.

Image

Steam Punk,

Image

which is ever so close in expression, has become really popular in other areas of life. IT is surely time for some Steam Punk amplifiers. I saw on another forum someone made a lamp out of iron plumbing bits including a bulbous old school tap.

Not that your effort in style is any the less.
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Michael L
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#41 Re: Cheap as Chips

Post by Michael L »

Can we not trace the origin of this shite dumped all over the forum and send him something back? (I refer to the spam which will hopefully be cleaned up soon).
Cressy Snr
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#42 Re: Cheap as Chips

Post by Cressy Snr »

They'll be using the TOR network to spam with, so the short answer is no.
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Mike H
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#43 Re: Cheap as Chips

Post by Mike H »

Eh wot??!
 
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jack
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#44 Re: Cheap as Chips

Post by jack »

Mike H wrote:Eh wot??!
The Onion Router.

Think "dark web"...

Bizarrely, it was actually invented by the US navy back in the mid '90s and further developed by DARPA as a method for secure US military communications...
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Cressy Snr
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#45 Re: Cheap as Chips

Post by Cressy Snr »

TOR - The Onion Router.
A network that routes through loads of different computers in different parts of the world, making it virtually impossible for any originating router/ip address to be traced. The whole of the "Dark Net" runs on it.
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