DIY thoughts of the day

A place for DIY project discussions.
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Wonfor14
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Re: DIY thoughts of the day

Unread post by Wonfor14 »

I have been playing with some remote control stuff, using RF 432MHz.
I have trouble finding a DEC to 4 bit BCD converter any thoughts, the 74hc147 series is going or gone bye bye to silicon hell (digital lies).

Thanks

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu »

Some nice little bamboo boxes at Ikea which are cheap and have some nice joints. The four sides are all non parallel. This one is 33x24x16cm (12.6 litres) so only good for smallish drivers up to about 6.5". Needs a front baffle of course and maybe one of Ikea's bamboo chopping boards could be used. If I was making small conventionally shaped speakers then I would be trying some of these quicker than a rat up an aqua duct.

Edit to add - only £10 each :dance:

https://www.ikea.com/gb/en/p/variera- ... 26053/

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DIY inspired by Richard "The Doc" Dunn RIP

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Latteman
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Re: DIY thoughts of the day

Unread post by Latteman »

Myself and a friend have used these very successfully- Sturdy little boxes

Ps Apart from rendering (painting) I have my speakers finished
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karatestu (Thu Dec 23, 2021 9:12 pm)
Analogue Source -
Diy Turntable ,- Thorens Td321 donor
Diy tonearm- Well Tempered clone,
Benz Micro Ace L
Hitachi HT-660. Ortofon Vito mc
Nva Phono 1 MC board
Digital Sources- MF M1 Clic, Diy IDE cdp, iPhone 6s.
Amplification 2x Nva A20; A30 mk2; AP10H; Khozmo passive pre
Speakers- Diy full omni bipolar 8”/6.5” & R. Allan CB4; Ls5/3
Dc blocker to Nva mini BMU

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu »

Latteman wrote: Thu Dec 23, 2021 8:24 pm Myself and a friend have used these very successfully- Sturdy little boxes

Ps Apart from rendering (painting) I have my speakers finished
Are they any good then Peter ? Can you hear the sounds of Sweden?
DIY inspired by Richard "The Doc" Dunn RIP

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Latteman
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Re: DIY thoughts of the day

Unread post by Latteman »

My friend had greater success- the bass for a small box was impressive
He used 3-4” full range driver
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karatestu (Fri Dec 24, 2021 8:27 am)
Analogue Source -
Diy Turntable ,- Thorens Td321 donor
Diy tonearm- Well Tempered clone,
Benz Micro Ace L
Hitachi HT-660. Ortofon Vito mc
Nva Phono 1 MC board
Digital Sources- MF M1 Clic, Diy IDE cdp, iPhone 6s.
Amplification 2x Nva A20; A30 mk2; AP10H; Khozmo passive pre
Speakers- Diy full omni bipolar 8”/6.5” & R. Allan CB4; Ls5/3
Dc blocker to Nva mini BMU

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu »

If you only ever listen at low volume then I think a single full range driver is hard to beat.
DIY inspired by Richard "The Doc" Dunn RIP

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karatestu
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Re: DIY thoughts of the day

Unread post by karatestu »

Well, today I have agreed a sale of some of my Avondale bits and bobs and other stuff (all to the the same person) :shock:

Four Canterbury Windings 350va with twin centre tapped secondaries, four Avondale HCR200 high current regulators, four speaker protection modules, five soft start modules. That lot has come to a fair amount.

That just leaves a pair of NCC200 power amplifier boards, a pair of 821A pre amp boards, blacklink speaker cables. Then I have a load of Najm stuff to clear out and if the PL71 impresses then my LP12 and all related faff will be out the door. Can't be doing with it all hanging around.

I am keeping all my Avondale power amp psu boards, TPR4 regulators (pre tracking regs with a capacitance multiplier on the front), four EI transformers (currently powering my nva amps) and ALWSR super regulators. There's more bug I can't be bothered to list it all right now.
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slinger (Tue Jan 25, 2022 9:05 pm)
DIY inspired by Richard "The Doc" Dunn RIP

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