opa 627bp in MHZS cd33

the cost for jensen is $900 (HK)

sorry, that is Muscial Fidelity A500A class amp.

Hi  WINDWSS,

Total cost for jensen cap around $700 because has discount in hong kong shop.
I used MF A400A class A amp.  and Mission bookself speaker (add DC current on cross caps.).
Total costs of upgrade around HK$1000 but the sound is better HK$10,000.00's cdp.

Diy not base on money. just fun. That is the interestof Diy.
do you agreed.

Thanks.

Viewer,

u had spend total how much on the modification? Jensen cap not cheap leh!

I only know superwhite had change all the jumper wire to silver wire but need wait the result from him....

By the way what the amplifer and speaker you are using?

photo 4.

photo 3

photo 1

photo 2.

Photo:

Hi superwhite,

Long time no hearing from you,
what are you doing on you cdp ??????

I have upgraded my MHZS cd33 in finial stage as follow:
1. replaced the power filter caps to Jensen 0.22uf/6320v (alu tube).
2. replaced the outup caps to Jensen 0.22/630v pure copper foil.
The reslut is very great.  all range are impoved much.
enclosed the it's photo for your sharing.

superwhite,

The GE JAN 5670 i ask my friend by from singapore.
The Tungsol i just put in the order, maybe recieve in 2 week time...

In internet saw some people say tungsol's characteristic is in between GE & WE so should suit me....

since the zn cap not suit for power coupling then i cannot buy 2nd hand from u lo   I prefer to spend on try different tube than changing expensive cap  :twisted:  :twisted:

[quote:01733d9729="WINDWSS"]superwhite,

so what's the uF of your mundof/Zn? it is 2.2 or 0.22uF? what will u do with it?? exchange back from the diy shop??
it it suit for the filter at opamp?? (near the tube side).
I had obtain my GE JAN 5670W last night, even only warm up for <1hr, It's sound is so sweet n warm. Resolution, detail & bass tightness may not as good as WE396 but i like it's warm vocal....really comfortable.... i'm quite satisfy at this moment. So wait until u become master of modification then i only start mod hahaha... :  :  :twisted: Temporary just change tube, twist wire enough :roll:[/quote]

same, 0.22uf 1200V , buy new one..... bcoz the shop said this cap cant be use in direct power(mean 240VAC)mean in the power filterring side, not bcoz cant use, but when you turn on the power switch, there is a SURGE current, maybe this will cost the cap SPOILT. :cry:

i tot you buy from web, TUNGSOL 5670?
now you can enjoy the music more...........after change the tube. :wink:

Dear All,

Need some advise from you all, i found the coil between the power coupling capasitor will have noise, sss sound when the power cord is on but the power on button on front panel is still off. The noise will stop after the palyer had start play disc. But the noise will come again if the disc not playing and leave the player on "on" position.

So what is the problem do you all think? is it the coil in the middle of the power coupling cap or??

superwhite,

so what's the uF of your mundof/Zn? it is 2.2 or 0.22uF? what will u do with it?? exchange back from the diy shop??
it it suit for the filter at opamp?? (near the tube side).
I had obtain my GE JAN 5670W last night, even only warm up for <1hr, It's sound is so sweet n warm. Resolution, detail & bass tightness may not as good as WE396 but i like it's warm vocal....really comfortable.... i'm quite satisfy at this moment. So wait until u become master of modification then i only start mod hahaha... :  :  :twisted: Temporary just change tube, twist wire enough :roll:

Hi to all,

Finally my CDP is back         

According to my diy shop here, he said the Mundorf ZN is not suitable for power supply filtering circuit, it only use for output side or low voltage circuit. :wink: lucky-ly is only the cap, so i have no choice change the cap to Mundorf silver/oil,( cant get any other low price cap to replace like ROE).
Damn EXPANSIVE leh.

Hi WINDWSS,

She's back.   
maybe can give you some tip on you Bada HD21 modification..... hope to hear you ready for modification...... :wink:

Thanks for advise, i still not upgrade my cdp by changing the cap yet as i'm not familiar with the characteristic of different brand of cap, also not good in soldering. Better do more homework 1st. Actually i'm not using cd33, i'm using Bada HD-21 with single tube only but the circuit setup look similar as cd33 so i guess the modification will be similar....



[quote:10f8c81e45="superwhite"][quote:10f8c81e45="viewer"]Hi winwss,

The two caps in front of the tubes as a filter of opa 2604's outup, so affect of the sound two much.

both are important, if change boths, that the sound will be closed to prefect.

Have you upgraded you cdp also?

thank you for sharing.[/quote]

Hi Viewer,
i totally agree with you :wink: , WINDWSS, if want to change choose the best or the sound that you like, if not you will waste your money :cry: , think twice before change  :wink:[/quote]

[quote:fcc7257f13="viewer"]hi superwhite,

Is it really cap solder shorting?????
Is it fine, when you re-solder the m-cap? if just this problem, i think you solder the m-cap not good before.

0.22uf/1000v not better than 0.22uf/630v. becuase the voltage just 220v. I said in hk. I don't know what voltage of your country.

Thanks for sharing.[/quote]

Hi Viewer,

Thanks for sharing, now is confirm cap shorting, bcoz i using my multimeter to measure, i get 0ohm, mean shorting, than i try to measur the second cap, i get infinity reading.... actually i'm electronic background, i get my first soldering tool from my uncle when i was 12yrs old,  :wink: voltage over here same, 220V-240V, normally here we get 240V. will try to ask my diy shop for help, dont know what he can offer me....   :wink:
hope just cap problem....... :wink:

hi superwhite,

Is it really cap solder shorting?????
Is it fine, when you re-solder the m-cap? if just this problem, i think you solder the m-cap not good before.

0.22uf/1000v not better than 0.22uf/630v. becuase the voltage just 220v. I said in hk. I don't know what voltage of your country.

Thanks for sharing.

i tot is transformer problem, but after checking found is my power side CAP Shorting(one of the mundorf ZN cap) Dont know why it get shorting. hope is only CAP problem....... :wink:   is this because i using 0.22uf 630V not the 0.22uf 1000V, will it get better?

Thanks Viewer.  

But my transformer has BLOW! :cry:  :cry:  :cry:  HELP! i need help!, where can i found same Transformer? :cry:  :cry:  :cry:

Hi superwhite,

I have some suggection to you CDP33 in as follow:

Try to replace 4  Rubycon ecaps which are beside of 4 Elna slim ecaps,
because these ecap are not suitable for audio.
I suggect to use elna audio grade ecap same value (costs HK$100.00), The bass will be solid and stronge than original very much (lower costs high gain). and try to replace the clock to 1ppm (costs HK$100.00)). It will be great.

Thank you for sharing.

[quote:43f35aed7c="viewer"]Hi winwss,

The two caps in front of the tubes as a filter of opa 2604's outup, so affect of the sound two much.

both are important, if change boths, that the sound will be closed to prefect.

Have you upgraded you cdp also?

thank you for sharing.[/quote]

Hi Viewer,
i totally agree with you :wink: , WINDWSS, if want to change choose the best or the sound that you like, if not you will waste your money :cry: , think twice before change  :wink:

Hi winwss,

The two caps in front of the tubes as a filter of opa 2604's outup, so affect of the sound two much.

both are important, if change boths, that the sound will be closed to prefect.

Have you upgraded you cdp also?

thank you for sharing.

[quote:0615b2cd22="viewer"]Hi superwhite,

This cap is supply power for tubes, so very import for sound quality.

When i changed it from M-cap, the sound become detail, smooth and powerful and very balance, win too much.  M-cap's sound just clear only. I also found that have  broken at the bottom of M-caps and other solen caps also. Because they to close  the pcb broad, it were burn by the solder with  the worker.

So i remind all MHZS's cdp owner of this.

Thank you fro sharing.[/quote]

Hi Viewer,

Thanks for your info. look like we got the right choice. :wink:

Hi viewer,

How about the 2 silver cap on top of the picture superwhite show you (very near to the tube)? what's their function/purpose? Is it supply power to the tube as well?

Which cap play more role in sound quality? the cap superwhite circle or the 2 caps near the tube?

Hi superwhite,

This cap is supply power for tubes, so very import for sound quality.

When i changed it from M-cap, the sound become detail, smooth and powerful and very balance, win too much.  M-cap's sound just clear only. I also found that have  broken at the bottom of M-caps and other solen caps also. Because they to close  the pcb broad, it were burn by the solder with  the worker.

So i remind all MHZS's cdp owner of this.

Thank you fro sharing.

Hi VIEWER,

Do you know any sound different on this cap if change to other? is this cap function to supply voltage to the tube? or other function?

Thanks!

[quote:7ce7d89851="viewer"]Good morning, Superwhite,


You can buy the jensen cap from William.[/quote]

Great!   Thanks, Bro! :wink:

Good morning, Superwhite,


You can buy the jensen cap from William.

Hi viewer,

can i know who has more jensen cap to choose? where can i find it? do there sell to oversea? very hard to find Jensen cap here, please help :cry:

can i get jensen cap from william sir? i may want to buy pre-amp from him.....

Thanks!

Hi superwhite,

It doesn't matter.
I will wait for hearing from you.
A much different when dio it.


Thanks.

Thanks viewer,

will try to look for Jensen cap like your one 100uf 150V  :wink:

Hi windwss,

the original ecap is 100uf/100v. So use ecap >or =100v is ok.


Thanks.

Hi superwhite,

I'm using BADA HD-21 single tube player.



viewer,
If not mistaken, follow electronics theory it is safer to us cap with voltage tolerance equal or larger than the original to avoid burst right?

Since Jensen is 100uF,150V we shall use us ecap with 100uF, >= 150V right?

Hi, superwhite;

If changed to black gate, the sound will be HI FI sound than Jensen.
Jensen cap can provide muscial sound.

up to you to use.

thanks.

[quote:ed06f264b0="viewer"]Hi superwhite,

The cap at the back is Jensen cap of 100uf/150v.

Thanks.[/quote]

can i change this to black gate NH 100uf 160V or Black Gate FK 100uf 100V? any different with Jensen?

Thanks

Hi viewer,

Thanks for sharing, hope i can upgrade like your CDP

Hi WINDWSS,

Great to have friend from Malaysia. i'm from KL, work in PJ. i also new in DIY. In Malaysia only have 2 DIY shop :cry: , the most stock is OCTAVE PJ, another 1 is DIYPARADISE Kuchai lama(part time). not much choose here, the shop that is selling GE5670 is DIYparadise RM45/pc. but i prefer WE396A(my opinion). you want to put GE5670 to your CD player? what CD player you are using?

i did't compare the GE5670 with WE396A, but if you have we can try it out :wink: . different tube have different sound characteristic, is up to individual to discover it, hope can share MUSIC with you.

Calvin
HP 012-2990511

Superwhite,

May i know which part of Malaysia u are in? KL/PJ? I'm new in DIY, I'm from malaysia too, may i know which shop in Malaysia u always get your part/component?

Did you compare the GE 5670 with your 396A is it a lot of differences or just slight different?  Where can i get the GE 5670 in Malaysia? what's the price?

Hi superwhite,

The cap at the back is Jensen cap of 100uf/150v.

Thanks.

Hi, Superwhite,

IC is opa627am the white cap value is 0.1uf/630v UCC cap (Taiwan). ths sound better than wimma box just $9.00 each in this web site.
the function  is filter caps for OPA627am. Can maked the sound body shap.

Thanks.

Great modification!

can i know what is marked with red ink? what value? thanks!

One more photo.

hi,

my upgraded Mhzs cd 33's photos as follow for sharing.
The sound great than CD66 much.

Hi,

i need to verify my last post on the ERICSSON tube VS Western Electric tube.
at first i try my WE, sound sweet, easy to accept that kind of MUSIC. the Vocal part is like 3D n also some of intrument too.
After change to ERICSSON thing change, vacal more to natural, intrument part more clear, but 1 disadvantage, noisy compare to WE when increase the volume. Now i going back to WE because the sound more easy to accept(TUBE FEEL). if anyone got budget buy 1 pair of WE396A n try it, let me know the result too. thank for sharing

My WE396A left is 1952 , right is 1949 secondhand tube

[quote:2b3247a4ec="viewer"]Hi,

how to post the photos

thanks.[/quote]

Hi viewer,

log in to http://www.photobucket.com/. register first, is free. after that wait for email notification,using email to activate you account then only can up load your photo, anysize photo, this photo bucket will adjust the correct size for you, dont worry. :wink: let me know if need help.

Hi,

how to post the photos

thanks.

[quote:5fe9148fe2="viewer"]I have upgrade my mhzs cd33 as follow photos.[/quote]

Great! any photo?

will try 1 more thing, BENDIX 6385 TUBE, received many good review on this tube, hope i'm not dissapointed with this tube. :wink:

At first i want to change my Tube Coupling CAP to AudioNote Copper oil 0.22uf, i know this cap really sound good, but have 1 problem, cap spoilt, according to my diy shop here. so i choose Mundorf silver/oil.

I have upgrade my mhzs cd33 as follow photos.

[quote:0998739db0="DUALXEON"]Bring you CD to http://vocativeaudio.com/ Mr Chan will give you some more idea Mod and Listen/compare OP AMP[/quote]

Many many thanks for DUALXEON advice on modification, unfortunated i cant come over to  http://vocativeaudio.com/. i'm actually from Malaysia......... :  :  :  :wink: Sorry.