Jump to content

alamakazam

Senior Member
 View Profile  See their activity

  • Content Count

    386

  • Joined

  • Last visited

Posts posted by alamakazam

  1. Posted · Report reply

    Description of Item : 1 pair of OPAMOON ( single channel) must buy in pair!!!

    Condition : 8/10

    Warranty : nil

    Selling price : $35 for pair

    Preferred Location : Tiong Bahru MRT, plaza singapura

    Preferred Mode of Contact : PM

    Contact Detail : PM

     

    This is a single channel opamp

     

    It can replace 1 on 1 on LF356, LF357, NE5534, LT1122, OPA627, OPA637, OPA604, AD797,AD811, AD844, OPA603, OPA134

     

    reason selling, DIY change of route, bypass opamp sounds better to me

     

    will give a badly done extension cable if you don't mind

     

    check it out here

    http://www.audio-good.com/enweb/pro/diy/OPA.htm

  2. Posted · Edited by alamakazam · Report reply

    Sigh, kind of gave up for a while, exams over now...

    Think i'll try again.

     

    How to tell if its a cold solder?

     

    I didn't take a pic of the soldering on the second one before i got pissed and melted down all the solder and screwed up the board.

    [attachmentid=4019]

     

    multimeter

     

    btw, your capacitors correct polarity?

     

    on off switch correct wiring?

     

    potentiometer correct wiring?

  3. Posted · Edited by alamakazam · Report reply

    I saw his blog pictures, uhmm is not right.... very bad

     

    you solder you component 1 by 1 on the board first, later than you connect them by solder bridge or wires

     

    so depending on how you plan on the board, you can actually have less wires

     

    I think some stuff are just cold solder without contact

     

    IPB Image

    IPB Image

    a micromouse example, not amp

  13. Posted · Report reply

    done order consolidated and is sent to supplier for a quote

     

    1x OPA Earth Dual and 2x OPA Sun single 1x extension lead - alamakazam

    2x OPA Earth Dual and 2x extension lead - Ysatis VRZ

    2x OPA Earth Dual, 1 x OPA Sun Dual , 1x extension lead - windrider SGheadphones

    2x OPA Earth Dual and 2x extension lead - wwenze SGheadphones

    1x OPA Earth Dual and 1x extension lead - Smooth xtremeplace

     

     

    Total Order

    8x OPA Earth Dual

    1x OPA Sun Dual

    2x OPA Sun single

    7x extension lead

  15. Posted · Edited by alamakazam · Report reply

    Order List

    ------------------------

    1x OPA Earth Dual and 2x OPA Sun single 1x extension lead - alamakazam

    2x OPA Earth Dual and 2x extension lead - Ysatis VRZ

    2x OPA Earth Dual, 1 x OPA Sun Dual , 1x extension lead - windrider SGheadphones

    2x OPA Earth Dual and 2x extension lead - wwenze SGheadphones

     

    we will ask for a complete quote, hopefully will give a better price than the buy 2 get 1 free offer

  17. Posted · Report reply

    Need how many to replace all the op amps in the zero dac??

     

    minimum 1, 2 more for the headphones

     

    my mistake, the offer is buy 2 get 1 free

     

    so we consolidate all orders, the total amount we will divide evenly

     

    count me in.

     

    does that mean that i just have to pay $33.10 for both OPA SUN and EARTH DUAL OPAMP?

     

    my mistake, the offer is buy 2 get 1 free

     

    so we consolidate all orders, the total amount we will divide evenly

     

  18. Posted · Edited by alamakazam · Report reply

    they are having a offer buy 2 get 1 free for the month of september, so we can save some $$$ and shipping cost together

     

    we consolidate all orders, the total amount we will divide evenly

     

    Original Price:

    OPA-EARTH Dual OPA USD22.5/1 unit - SGD$33.10

     

    OPA-EARTH Single OPA USD12/1 unit - SGD$17.70

     

    OPA-SUN Dual OPA USD30/1 unit - SGD$44.10

     

    OPA-SUN Single OPA USD16/1 unit - SGD$23.60

     

    Others

     

    Extension lead of the OPA, price only add USD3/unit,

    stand is long 100MM, also, you can order 50-100MM, but we need more 3 days to finish your order.

     

     

     

    so in short, we need to buy in pairs, so lets see how many units can we consolidate

     

    current exchange rate for paypal = US$1 = SGD$1.47

     

     

    orders will end on next wednesday 17th, payment received by 21st, I will order on 22nd

     

    IPB Image

     

    Dual OPA:It can replace AD712, AD827, C4570, JRC4580, JRC5532, JRC5532D, JRC5534, LF353, LF358,LM833N, NE5532, NEC4520, NEC4570, NJM2068D, NJM2114, NJM2214D, NJM4558, NJM4558D, NJM4560, NJM5532, NJM4558P, OP275, OPA2132, OPA2134, OPA2604, RC4558D, RC4558, TL052, TL072,LT1057,BA5218,EL2244,LM4562

     

    Single OPA:It can replace LF356, LF357, NE5534, LT1122, OPA627,OPA637,OPA604, AD797,AD811, AD844,OPA603,OPA134.

     

     

     

    IPB Image

    Zero Dac with OPA Earth

     

    more info here

     

    http://www.audio-gd.com/enweb/pro/diy/OPA.htm

     

     

    Order List

    ------------------------

    1x OPA Earth Dual and 2x OPA Sun single 1x extension lead - alamakazam

    2x OPA Earth Dual and 2x extension lead - Ysatis VRZ

    2x OPA Earth Dual, 1 x OPA Sun Dual , 3x extension lead - windrider SGheadphones

    2x OPA Earth Dual and 2x extension lead - wwenze SGheadphones

    1x OPA Earth Dual and 1x extension lead - Smooth xtremeplace

×
×
  • Create New...