DIY (assembling) is pretty much a piece of cake if you had quality components and didn't screw up. designing and making ur own is another story


here is my Gilmore Dynalo, got 2 pieces of the board, suppose to build a balanced version but i guess i don't have that much budget atm...will only be using one for stereo. the one on the left is obviously the psu board. No idea how much is the retail yet as headamp.com did not show any interest in this amp compared to other Kevin Gilmore's amp. retail for Dynahi is USD1799....i guess Dynalo should be about 30% less. will be getting the parts tomorrow and expecting this to be completed(less enclosure) by end of the month....hopefully.
this gonna be my homeamp for some time...dont feel like feeding my sr-71 too much

EDIT: oh screw it.....transformer lead time May-03......
EDIT#2: ok, being a little cheap...sample opamps will be shipped in May 18, wont be seeing this baby in action until june but this delay save me RM120

you will only need universal/multipurpose pcb to make a cmoy no need waste money to buy pre-etched and nciely printed pcb


I'm gonna stocking on parts for my Dynalo now, if you need OPamp please pm me, i'll suggest which one you should go with and the price. I'm starting a bulk in bulk section for OPamps and whatever electronics stuff.....check that out.

yes, check out the bulk in my sig.

bout RM500

okie, got my parts yesterday, worked my @ss off and got the psu and amp part done problem is that i accidentally bought a bunch of 200"k" rohm resistor instead of 200ohm resistor so gotta order it again some missing caps and voltage regulators are in another order that i have not placed some pimping pics:

psu, amp, and solder side.
http://img.photobucket.com/albums/v232/kin0kin2/9ffdba84.jpg

lol tyty.
initially i wanted to build a balanced dynahi, then i check out the cost and the expression was "wow, and ouch". well then i decided to go with balanced dynalo, bought the board and when i double check the order, it was anotehr "ouch" so in the end, a stereo dynalo

havent heard of it wor, still in progress as stated in above post. wont be seeing it until end of the month (end of may). cant get a decent heatsink that is < 2" tall. troublesome troublesome

btw, a palm size amp can already cost near RM2k....depending on the construction and design of the circuit.

i need something quite short and wide. about 1.5" H X 6" W (or more) X 1-2" D. cant get something too small, must be within that surface area.

heatsink = heatzink = headzink?

so u want me to get it for you?
it can be done, im gonna make my order soon...again.

well, my answer would be: anything u want.
just click on the link on my sig and check out the site there for the specific opamp that u need, i've got a bunch here though and dude, do it quick, im really really really gonna order the stuff soon, end of this week probably. as for the price, just estimate 20% more (probably enough to cover shipping to msia) based on 3.9 conversion rate.

there are many sites out there that explain how to build a simple headphone amp, with a single voltage gain stage.

http://www.tangentsoft.net/audio/
http://www.headwize.com

headwize.com have a large collection, audiologica (tangent) have ppa, pimeta, mint, and cmoy(not really a diagram fro cmoy). kevin gilmore's site have a couple of his design up there. headamp.com have a couple of kevin gilmore's design as well, in fact, it's the final schematic for all his amps. best of all, design your own.

RM10 to post to you just like pos laju haha but it will take 9 business days, about 2 weeks to be precise. just wondering if uw ant me to build the whole thing for you, i'll be picking some enclosure for some pocket amps that could tkae in 2 X 9v bout USD11 each.

no way u can simply check out ebay to see what price they are running now.

depending on the circuit, it's not easy to clone the exact same thing as different components are used so it's even harder to compare a diy amp from a commercial amp.

btw, it is called integrated amp because it is integrated into a receiver/player, better just use the term amp here.

some of the commercial amps have very simple circuit, some don't. usually, if u know what u are doing...it is cheaper to make your own than to buy a commercial one. sound-wise, really depends on what kind of sound you are aiming to get in return so usually the price:performance is better asthetic wise maybe not.

there are 2 links in the 1st page where you may find very helpful

yes sir that is the correct term thank you for the correction

here here, what's your budget and what do u want on it?

i remember a us company, buying a china amp that looks almost exactly like the one you posted, rebadged it and sold it at a few times higher.....in the end the owner got caught but still denies it.

well, thats the thing, they called it "OEM" but dude, the chinese company was never in contract as their OEM. they rebadged other's product without the manufacturer's consent. it's almost like pirating. but i think it cant be help, consumer has to beware of this kind of things.

here is a rough sketch of my amp's front panel:


missing part including:
1) input and output indicator
2) volume level indicator
3) indicator on each knobs

here is the raw casing:



it's gonna cost me RM150 to drill the inset and holes....then i most likely will have to deanodize the whole plate and reanodize it myself again gonna buy a battery charger to try it out soon.