Posted on Thursday, 13th July 2006 by Auw Jimmy

*still empty*

Comments (34)

34 Responses to “About”

  1. RICHARD Says:
    May 25th, 2009 at 08:03

    sir jimmy, can you furnish me the pin configuration
    of altec lansing vs4121 9pins connector, because all the wire of my connectors are all cut off.



  2. elliot Says:
    May 28th, 2009 at 23:38

    admirable blog. You are a technical freak using wordpress like me. haha. anyway. nice too meet you. i got your blog from google.



  3. ScottG Says:
    August 19th, 2009 at 02:53

    Very nice capacitor grouping!

    Question: what is “sweet”? I can understand the clarity and definition is superior with the teflon capacitor, but I’m not quite “getting” what is superior with the better paper and oils. More 3d imaging? Better harmonic saturation?

    The one capacitor that probably should have been included was the Jupiter condenser capacitor (..despite tempo electrics marginal rating). I wouldn’t be surprised if it was very similar to the paper tube Jensen copper while being about half the cost.

    Here are some additional links:
    http://www.troelsgravesen.dk/300B.htm
    http://www.dhtrob.com/impressies/jupiter_en.shtml
    http://www.dhtrob.com/impressies/super_e_cap_en.shtml
    http://www.vhaudio.com/21capacitorshootout.pdf

    Again, thank you very much for the testing!



  4. Jimmy Auw Says:
    August 19th, 2009 at 09:32

    Hi ScottG,
    It’s a little bit difficult to define “sweet” by word (perhaps due to my limited vocab in English). I think we can also use “warm” or “mellow” (but not “dull”), which you can “taste” the lips, tongue, even singer’s breathe when singing. I think this refers to better harmonic saturation also. Like comparing a 300B tube vocal vs solid state vocal. Perhaps with this you can understand what do I mean by “sweet”.

    We can’t make a general assumption about all Paper-In-oil Caps, since not all of them have similar sound. Let’s say Audio Note vs Jensen Paper-In-Oil. Even they both same Paper-In-Oil, but Jensen has better high frequency tones, while perhaps Audio Note has even “sweeter” vocal. More different if you try Jensen Paper Tube or Duelund.

    I have tried Jupiter once… but this caps had gone away long ago (I sold it to my friend). Perhaps just not my cup of tea. If I could recall my memory correctly, the tones of this Jupiter is between Audio Note Copper and Jensen “classic” Copper. To Jensen Paper Tube? I can’t confirm, but I don’t think so.

    And as my caveat has been written, the result my subject to the listener preference. YMMV.

    Thanks for the links.



  5. ScottG Says:
    August 19th, 2009 at 13:36

    Thank you for the reply Jimmy!

    I can understand that 300B vs. solid state (..well, good solid state).

    You could well be correct about the Jupiter capacitor. Note though that their materials/mechanical formulation has changed (..though for all I know it could be worse).

    http://www.jupitercondenser.com/index.php?option=com_content&view=category&layout=blog&id=34&Itemid=60

    Anyway, again a big thank you!

    (BTW, loved the use of the CD cases for the switch face-plate.)



  6. Jimmy Auw Says:
    August 19th, 2009 at 13:51

    Dear ScottG,
    Thanks for your comments.

    I have moved your comments to here:
    http://jimmyauw.com/2009/08/18/extreme-capacitors-battle-2nd-session/

    Just to make the discussion easier to be followed.

    Thank you.



  7. Face Says:
    September 11th, 2009 at 02:14

    In reference to your recent cap comparisons. You should give the Claritycap ESA a try as a coupling cap. It doesn’t compare to Duelund of course, but it has a nice warm tone to it and is very affordable. They’re also very compact in size. For a little more transparency and a little more high end tilt, the Claritycap MR is also a great coupling cap. Both are also just as impressive in speaker crossovers.



  8. Jimmy Auw Says:
    September 11th, 2009 at 09:12

    Hi Face,
    Thanks for your information. Too bad when I bought all caps from PCX, they didnt carry ClarityCap. Here in my country (Indonesia), hardly to find a good caps. So I need to buy overseas. From your description, I think the ESA could be similar to Jensen. But if I could recall my brain correctly, the MR also quite expensive.

    Thanks.



  9. Jimmy Auw Says:
    September 11th, 2009 at 09:23

    Hi Face,
    In the future, please post it here:
    http://jimmyauw.com/2009/08/18/extreme-capacitors-battle-2nd-session/

    Not in this about page. Just to simplify the discussion.

    Thanks.



  10. ericcm Says:
    September 12th, 2009 at 01:45

    dear jimmy, i hope you can help me with my problem. i own a konzert ks-8w subwoofer(this is the only sub i can afford)but unfortunately the toroidal transformer was burnt, i forgot the unit to turn off after listening a number of songs. it just stays on for almost one day. since in our place there was no support from konzert, so i opt to buy an ei type transformer since there is also no available toroidal transformer here. the rating of ei is 18v-0-18v, 3Amp. the rating of thr toroidal trans is 17.5v-0-17.5v, i don’t know the ampere rating but it has 220VA printed. now my problem comes in here, all relevant connection to the transformer was already done by soldering. but when i turn on the switch, the fuse would suddenly blow. i would replaced it again and still it would blow. what is supposed the problem? i hope you can find time answering me. i was really thankful i come across on your website. than you and god bless. eric



  11. Kevin Little Says:
    November 3rd, 2009 at 07:17

    I happen to have a black plate RCA 12b4a NOS tube and 3 NOS 6bq5/EL84 tubes. Are you interested in them to purchase?



  12. stenor Says:
    January 1st, 2010 at 04:29

    Hello Jimmy I’ve been reading your journal/articles/blog..? with great interest for some time. And now I’m looking to take advantage of your experience (mwahaha) *evil laugh*. Well, that is if you’ll allow it. I’m making psu for some nxV300 modules (aussieamplifiers) and aiming for 60-100k uf per channel, toroid +-500va (dual mono). I need advice on caps to use, they shouldn’t be ultra expensive, but they could be “a little expensive” if that give much improvement.
    So, you have any good advice? (oh, and they should be about 100v 8-15k uf range)



  13. Jimmy Auw Says:
    January 1st, 2010 at 22:29

    You can try Jensen 4-pole.

    Thanks.



  14. Nico Says:
    January 27th, 2010 at 01:40

    halo pak jimmy, punya koleksi tube2 12at7 ecc81 801 dan 12bh7 gk? sy lg cari bbrp yg cocok. please email balik ya. tq



  15. Nico Says:
    January 27th, 2010 at 01:41

    nicohansamu at gmail dot com



  16. Jimmy Auw Says:
    January 27th, 2010 at 09:32

    Tidak ada Pak.
    Thanks.



  17. LPark Says:
    February 12th, 2010 at 03:08

    Jimmy, can I get your comments on Mr. X’s RS241 amplifier? I’ve been looking to go for one, and I was interested in getting it made by tube lovers indonesia… pls email me at lindenpark at gmail dot com, thanks!!!



  18. Jimmy Auw Says:
    February 12th, 2010 at 23:10

    Hi,
    If you are on the way of 300B or 2A3, then this RS241 should be on the end of your journey.

    Thanks.



  19. handy siloam Says:
    March 1st, 2010 at 19:04

    pak jimmy nomor hp nya berapa ?



  20. Jimmy Auw Says:
    March 1st, 2010 at 22:55

    Hi,
    Untuk keperluan apa Pak?
    Thanks.



  21. deco Says:
    March 16th, 2010 at 10:46

    iya pak minta no telp atau id ym atau msn nya deh…
    pengen nanya2 componen or all about musick



  22. Jimmy Auw Says:
    March 16th, 2010 at 13:42

    Japri aja bro.
    Thanks.



  23. Audionorth Says:
    March 28th, 2010 at 12:52

    When are you going to give us your impressions of the new V-Cap compared to the old (ie the CuTF vs the TFTF?)

    Thanks,
    M-



  24. Jimmy Auw Says:
    March 28th, 2010 at 16:14

    I think the CuTF has limited capacitance for now? If I could recall my brain correctly, the max capacitance is 0.33uF? While my TFTF is 0.47. Not really a nice comparison.
    Thanks.



  25. Sergey Says:
    April 20th, 2010 at 03:27

    Hi.

    Jimmy (and anyone who can advice), i got a quite inappropriate question. As it is the only Indonesian site in the world I know, maybe you can give me a lead.

    Dont’t you know some local site where I can buy some kilo’s of REAL PALM SAGO PEARLS? Maybe some on-line grossery or just discussion boards with English speaking people where I could order a bit of this.

    Hopefully, it wasn’t too stupid :)

    Thanks.

    P.S. My Altec 5021 mod doing fine. Now building a tube hea-damp.



  26. Ramon Says:
    April 22nd, 2010 at 23:25

    Hi Jimmy, i am one of your avid web site readers and i love to visit your web site. What do you think about the impamp? Do you have any idea for a small pre amp and recommendation for bookshelf speaker for it?

    http://www.impamp.com/

    best regards
    Ramon



  27. Jimmy Auw Says:
    April 22nd, 2010 at 23:44

    Hi Ramon,
    Never heard that one, so hardly to comment. But if some rumors on the diyaudio are correct, then this is a nice stuff.
    No need preamp I believe, just with your source volume control (like PC Sound Card or iPod or CDP). Can try passive attenuator also.
    For the speaker, I got no idea. Perhaps a DIY with 3″ like Tangband?
    Thanks.



  28. Ramon Says:
    April 26th, 2010 at 13:20

    Thanks Jimmy for giving me hints of having a passive attenuator. I discovered a supplier
    http://luminousaudio.com/axiom/rca.html
    Any comment? I like to drive the mini tube amp with a cd player source. It looks like they need to know system spec before install the resistor.
    My imp amp tube input have -20db consumer to +4db pro level adjustable trimmers.

    By the way, the imp amp tube video is
    http://www.youtube.com/watch?v=40qi4MFthvE&feature=related

    Best regards and thanks
    Ramon



  29. Harywanto Says:
    July 3rd, 2010 at 14:14

    Plesae give us quoatation :

    - Capasitor 8uF 1000 VAC

    Qty : 6 pc



  30. Jimmy Auw Says:
    July 4th, 2010 at 20:09

    I’m sorry, I’m not a seller. You can try to find in local electronic shop or online shop.

    Thanks.



  31. sid Says:
    July 5th, 2010 at 14:00

    Hi Jimmy,
    Quite an exhaustive plethora of information here. Very impressed by your passion for electronics on the inside of the musical boxes, which actually makes or break the music.

    AA) Jim, i need your feelers on Elma &/or Shallco switches. I have picked a Promitheus Signature 2 box TVC version. I have gone ahead with & in past have had experience of hearing a Shallco but never and Elma.

    Could it be possible to share some details, if you have been able to compare them both ever.

    BB) What possibly could be added to a TVC passive-pre to make it sound more huge in all possible respects. Considering we is being used for now it C-core transformer, Elma switches, copper plates etc. (You can avoid this question if its vague to reply back)

    This is the only pic i could get of it – http://upload.review33.com/images/200905/200905232228539455.jpg (its a double box design housing a single C-core transformer)

    Also, this one is theie reference version – http://www.audiocircle.com/index.php?PHPSESSID=p788lnpq7pujjr9mv097i7bekoheu8ga&action=gallery;sa=view;id=20785 (This one is a single box dual-core variant with smaller c-cores into one)

    Anyway, thanks for your time.

    Best Wishes
    Sid
    ..



  32. Jimmy Auw Says:
    July 7th, 2010 at 16:31

    Hi Sid,
    I think Shallco should be higher grade compared to Elma. Or you can go with Seiden for the ultimate one.

    I think the problem with most TVC is with the output. I would suggest to add at least an active buffer circuit, not just the passive TVC circuit itself.
    Or at least, you must know exactly to what device (its impedance spec) which match your TVC, to make sure your TVC will perform well with the device connected to its output.

    Thanks.



  33. moektie Says:
    August 13th, 2010 at 11:13

    Pak, minta ijin buat nyantumin blognya di tempatku ya..



  34. Auw Jimmy Says:
    August 13th, 2010 at 23:28

    Silakan bro…

    Thanks.



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