Author Topic: Little music station  (Read 12340 times)

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Offline balarila

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Little music station
« on: Aug 20, 2013 at 09:26 AM »
The wife likes working in the dining room (online).  I thought I'd surprise her with a little sound system.  So I went and bought some 2nd hand Wharfedale 9.1 speakers, an 80gb ipod with dock, and this amp:



So I'm now doing a quickie project for speaker stands and a hall table for the amp and docked ipod.

Here's the speaker stands so far.



Sorry for the grainy photo.  Cellphone lang.

Doing that mortise-and-tenon joint on the base and the curved pieces was tough.  Pero matapos magmura ng katakut-takot, pumasok rin.

It's mahogany made dark with potassium dichromate.  My mistake was that some of the epoxy glue spilled into some exposed portions resisting the ageing chemical.  I will now have to scrape it off and reapply.

Bad photo angle.  The base is actually 1.5" thick so bottom heavy.  I also have some spikes coming.

Since yesterday was Quezon City day,  holiday.  Had more time to continue on my secret project.
 
Decided I'll build the hall table upon which the amp and ipod will sit.

Sliced two planks of some nicely grained mahogany to come up with bookmatched panels then glued them.



Made two of them.  One for the tabletop and the other for the shelf beneath.

Had to make this jig to make diagonal cuts:



Used that jig to make tapered legs.



Those notches were for the lower shelf to "tenon" into.  You can see the shelf at the bottom of the pile with diagonal cut corners.  Those corners were also routed at the top to match the slightly narrower mortise in the legs.

Dry fitting



Ahhh...sometimes, things just fit right the first time.  Probably that's because I sawed and chiseled those diagonal mortises manually.  Somehow, I can't get the hang of mortising and tenoning with power tools.




Glued the legs, now waiting for glue to cure.   Next, pre-finishing, then screwing on of the tabletop.  Then final finishing.
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Offline Gino

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Re: Little music station
« Reply #1 on: Aug 20, 2013 at 10:06 AM »
Wow, this is an awesome project. A great journey. Your artistry is commendable. I just loooove that table. I'm a Qc guy, maybe i can drop by when it's done? I have a soft heart for the Sakura. I've heard the iPod Sakura combo on my speakers and I am confident it will have good tonal balance.

I suggest you have this moved to the HT Gallery. That way it will have a permanent home for all to see.
« Last Edit: Aug 20, 2013 at 10:12 AM by Gino »

Offline balarila

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Re: Little music station
« Reply #2 on: Aug 20, 2013 at 11:11 AM »
Thanks, Gino.  Of course, drop in, when it's done.  But I live in Antipolo so not sure if you consider that lightyears from where you are.

To the Admin: May I request to move this thread to the HT Gallery as Gino recommended? ...unless someone here can teach me how to do it.
I'd rather add life to my years than years to my life.

Offline Gino

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Re: Little music station
« Reply #3 on: Aug 20, 2013 at 11:17 AM »
Lapit ka pala sa family friend Mom ko, si Benjie Reyes. I have one of his rocking chairs. Awesome wood artistry.

Offline balarila

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Re: Little music station
« Reply #4 on: Aug 20, 2013 at 01:28 PM »
Lapit ka pala sa family friend Mom ko, si Benjie Reyes. I have one of his rocking chairs. Awesome wood artistry.

I may be close to him by distance but very far in terms of woodworking skill.  Benjie Reyes is legendary.
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Offline kiwimig

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Re: Little music station
« Reply #5 on: Aug 20, 2013 at 01:43 PM »
nice work. i'm assuming that you're in the furniture business?

Offline kimmy_kimmy

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Re: Little music station
« Reply #6 on: Aug 20, 2013 at 02:12 PM »
congrats on the little music station.

very nice console table as well.

Offline balarila

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Re: Little music station
« Reply #7 on: Aug 20, 2013 at 02:54 PM »
Thanks, kimmy_kimmy and kiwimig.

No, I am not in the furniture business.  I'm just a weekend woodworker.
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Offline panzimus

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Re: Little music station
« Reply #8 on: Aug 20, 2013 at 04:36 PM »
Wow, that's what you call labor of love!

Offline deist

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Re: Little music station
« Reply #9 on: Aug 21, 2013 at 10:23 AM »
Nice project sir.i always appreciate DIYs esp this paying-it-forward endeavor.

Offline Gino

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Re: Little music station
« Reply #10 on: Aug 21, 2013 at 11:56 AM »
Ayan, your thread has a permanent home. Abangan...

Offline jh@meeh

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Re: Little music station
« Reply #11 on: Aug 21, 2013 at 12:35 PM »


Welcome bossing sa Gallery of Witch... >:D >:D >:D
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Offline remington

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Re: Little music station
« Reply #12 on: Aug 21, 2013 at 12:43 PM »
ganda ng table sir! Excellent craftsmanship!
tube + audio nirvana = beyond...

Offline TeeGoY

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Re: Little music station
« Reply #13 on: Aug 22, 2013 at 10:13 PM »
Looking forward to updates from this thread :)

Offline balarila

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Re: Little music station
« Reply #14 on: Aug 23, 2013 at 07:34 AM »
Salamat!

I had actually done the finishing on the table and now waiting for waxing but more on that later.

I turned to the Sakura amp and decided to take the risk of replacing all the MDF parts with real wood.  Managed to remove the sides here:



I would like to remove that Sakura logo (and replace with a McIntosh!  :) ) but can’t figure out how to get at it.

Removing the sides meant I had to move the pots to gain access at the screws.  Noticed that the pots are really low-end ones.  The shafts were cheap plastic and were actually too loose for the knobs but made tight by wrapping masking tape on them then jamming the knobs in.  No wonder the knobs were difficult to remove.  I accidentally snapped off the shaft of the volume knob.  Not really sure if I did it or if it was really broken before but held by the masking tape.



I could actually glue back the shaft but, since I’m at this already, thought may as well replace the pots.

I see three:  volume and the tone controls.    Would anyone know the specs of these pots?  Would these be available in the local Deeco?

Will have to get me some soldering iron and lead.  Man!  Haven’t soldered anything in more than 20 years!

-------
Also managed to remove the box containing the transformer.  Did that by unscrewing the motherboard and heatsink combo and shifting it a bit to expose the screws.

Here it is all dismantled:



That coil looks interesting.  If I keep it partially exposed, would that be a hazard?  I am thinking of constructing a wooden fence around it about halfway through its height, then have wooden columns on the four corners to support the clear plastic cover.

Started planning the woodwork:

« Last Edit: Aug 23, 2013 at 07:45 AM by balarila »
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Offline timber715

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Re: Little music station
« Reply #15 on: Aug 23, 2013 at 12:32 PM »
I like your checkered shorts brader... ;)
While nakabaklas yan maybe you would consider an accuphase integrated amplifier? Hehehe. Just kidding....

Offline Gino

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Re: Little music station
« Reply #16 on: Aug 23, 2013 at 12:42 PM »
Looks like you are having fun. Toroidal transformer pala siya. Nice. This is an interesting makeover.

Offline balarila

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Re: Little music station
« Reply #17 on: Aug 23, 2013 at 12:51 PM »
Anybody know the specs for those pots?  I need to replace the volume pot na nabali ang shaft.

Sonny:  Pajama yun.  Ginagawa ko madaling araw para di makita ni mrs.
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Offline Nelson de Leon

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Re: Re: Little music station
« Reply #18 on: Aug 23, 2013 at 01:09 PM »
Anybody know the specs for those pots?  I need to replace the volume pot na nabali ang shaft.


AFAIK, kung knob lang ang sira. pwede atang makuha ang value nyan using a multi-tester.
Lets wait for the electronic gurus here to chime in.

Offline ndotcom

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Re: Little music station
« Reply #19 on: Aug 23, 2013 at 01:38 PM »
Anybody know the specs for those pots?  I need to replace the volume pot na nabali ang shaft.

Sonny:  Pajama yun.  Ginagawa ko madaling araw para di makita ni mrs.

sir usually may naka print dyan sa likod or sa body kung ano value ng pot..pag di Makita ay check na lang with ohmmeter
« Last Edit: Aug 23, 2013 at 01:40 PM by ndotcom »

Offline balarila

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Re: Little music station
« Reply #20 on: Aug 23, 2013 at 01:55 PM »
Salamat.

Problem is, kahoy lang ang kaya kong kalikutin.  Don't even have a tester.  Nor soldering iron nor lead.  If I have a tester, I'd assume I'll need to desolder the pot first before measuring, right?  Ok sana if I go to Deeco to buy the whole lot: pops, iron, lead, etc.

I guess I can measure the resistance.  Pero if someone here knows the value, it'd be a lot more convenient.

BTW, if I do measure it, can someone remind me how to do it?  I recall there are three terminals.
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Offline JojoD818

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Re: Little music station
« Reply #21 on: Aug 23, 2013 at 02:10 PM »

Lets wait for the electronic gurus here to chime in.

Oo nga let's wait for them to chime in. ;D


Maybe a close up photo of the said pot can help the electronics gurus here too. ;)



EDIT: @Balarila: Welcome po sa galleries sir!
« Last Edit: Aug 23, 2013 at 02:11 PM by JojoD818 »

Offline Nelson de Leon

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Re: Little music station
« Reply #22 on: Aug 23, 2013 at 08:11 PM »
Oo nga let's wait for them to chime in. ;D
Maybe a close up photo of the said pot can help the electronics gurus here too. ;)
EDIT: @Balarila: Welcome po sa galleries sir!

Loko. Isa ka na sa mga guru dito!

Offline JojoD818

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Re: Little music station
« Reply #23 on: Aug 23, 2013 at 08:29 PM »
Loko. Isa ka na sa mga guru dito!


hindi. neophyte lang brad... di ko nga mahulaan wala pa closeup picture ni sir...


Offline balarila

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Re: Little music station
« Reply #24 on: Aug 24, 2013 at 06:12 AM »
This is the backside of the volume pot:



And the front:



I think the label says B50k.  Would that mean a dual-gang 50kOhm pot?

The tone controls look the same:



All together now:



Medyo mahirap pala i-solder.  Masikip.  Pag na-chicken ako, super glue na lang.
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Offline Gino

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Re: Little music station
« Reply #25 on: Aug 24, 2013 at 07:32 AM »
If that module is removable, the tech guys at Greenhills can easily replace that. I had my guy replace my phone's sim tray and that was a way more difficult task. The reason I bring my stuff to them is because I have a history of ripping off pcb pads. I could not nail that part of electronic work.

Call Ron. You will have to bring your replacement parts.

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From Virramall 2fl parking, enter virramall.  Other side enter alley to celphone areas. immediately on left is Ron's corner.

Offline disturbed

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Re: Little music station
« Reply #26 on: Aug 24, 2013 at 08:42 AM »
^ yes that is 50K ohms sir..kaya nyo i solder yan sir :D

Offline Nelson de Leon

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Re: Little music station
« Reply #27 on: Aug 24, 2013 at 08:52 AM »
ou can use Alps pot kasi mas durable ang alps kesa that one.

Offline HasBro™

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Re: Little music station
« Reply #28 on: Aug 24, 2013 at 09:13 AM »
you already have a blister bro. :)
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Offline JojoD818

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Re: Little music station
« Reply #29 on: Aug 24, 2013 at 10:19 AM »
The answer to the pot question has already been answered in the tubes section. We're sure you can replace that. Good luck on your project.