Author Topic: JojoD's Tube and Solid State Projects (Read 1127960 times)

Superman · « **Reply #30 on:** Apr 30, 2006 at 09:11 PM »

Quote from: JojoD818 on Apr 20, 2006 at 11:32 PM

I think it is order basis for the EH EL34, but if you want to try the Svet EL34 you can go to Silver Strings, they also have 12AX7, 12AU7 there I think. Or you may try calling up sir Andrew of AMX if he has a set of EH EL34 for you.

EDIT: You may also try EH 6CA7 fatboys errr fat bottles. They are direct replacements for the EL34 and for me, very nice tubes indeed. Got mine from SG.

agree, ganda nga!

eRaSeR · « **Reply #31 on:** Apr 30, 2006 at 10:10 PM »

sir levi,

tahimik po ba at walang humming kapag loud volume?

Quote from: levi on Apr 30, 2006 at 04:42 PM

Check out Jojo's phonostage. Im happy with my unit.

old_age · « **Reply #32 on:** May 01, 2006 at 11:59 AM »

Quote from: levi on Apr 30, 2006 at 04:42 PM

Check out Jojo's phonostage. Im happy with my unit.

another happy and satisfied user of JD Labs... di pa broken in yan ha.

Kudos Jo!

eRaSeR · « **Reply #33 on:** May 01, 2006 at 04:57 PM »

sir jojod,

anung mga tube ginamit?

pa pm naman po yung price. thanks.

odyopayl · « **Reply #34 on:** May 03, 2006 at 08:21 AM »

Sir Jojo you have e-mail

arnoldc · « **Reply #35 on:** May 03, 2006 at 10:06 AM »

jojo, is this the Thorsten design?

JojoD818 · « **Reply #36 on:** May 03, 2006 at 04:14 PM »

Quote from: arnoldc on May 03, 2006 at 10:06 AM

jojo, is this the Thorsten design?

hi arnold,

nope it is not.

JojoD818 · « **Reply #37 on:** May 03, 2006 at 04:15 PM »

Quote from: odyopayl on May 03, 2006 at 08:21 AM

Sir Jojo you have e-mail

engineer, i'll get to that email as soon as I can.

cheers

JojoD818 · « **Reply #38 on:** May 03, 2006 at 04:20 PM »

eraser,

the mm phonostage uses 2pcs 12ax7 and 1pc or either 12ax7, 12au7, 12at7 (your choice).

arnoldc · « **Reply #39 on:** May 03, 2006 at 05:01 PM »

so which circuit is that?

JojoD818 · « **Reply #40 on:** May 04, 2006 at 12:09 PM »

cc/zero feedback riaa/cc/cf. I just whipped it up. but of course the topology is not mine either. maybe just the implementation.

I hear Tony saying in one of his sermons... "this topologies and circuits are here since before World War II so there is nothing more to invent" or something along that lines.

arnoldc · « **Reply #41 on:** May 04, 2006 at 01:24 PM »

that's great jojo! yes, tony is right. those topologies were there even before we were born

may riaa measurement tool sa hagtech.com is you want to check the riaa accuracy.

JojoD818 · « **Reply #42 on:** May 04, 2006 at 07:08 PM »

Quote from: arnoldc on May 04, 2006 at 01:24 PM

that's great jojo! yes, tony is right. those topologies were there even before we were born

may riaa measurement tool sa hagtech.com is you want to check the riaa accuracy.

thanks!

JojoD818 · « **Reply #43 on:** May 05, 2006 at 09:47 PM »

Quote from: odyopayl on May 03, 2006 at 08:21 AM

Sir Jojo you have e-mail

odyopayl,

can you please email me the precise schematic that you want to use? if I'm not mistaken, you sent me a psu circuit for a V+ of 5VDC and a circuit that accepts 12-18V input. please clarify and confirm if you can source the crystal and rf tranny.

regards

ATJr. · « **Reply #44 on:** May 06, 2006 at 10:36 AM »

did i hear my name called? all i am saying is that we are fortunate that we do not worship a cult of originality for originalities' sake, there is no point in reinventing the wheel each time.

for as long as we understand what we are copying, then all is ok.

you are fortunate jojo, you need not go overseas to fend for your family.

keep up the good work!

if there will surface 10 or more like you, then i will be very happy.

odyopayl · « **Reply #45 on:** May 08, 2006 at 05:36 PM »

Sir Jo2 sent you PM

shogunn · « **Reply #46 on:** May 30, 2006 at 11:48 PM »

12AU7/5814 Tube Preamplifier or 6SN7 Linestage Redux ( is this a preamp also?)

Sir Jo2, how much po for each one of this.I'm interested

where can I contact you Sir.

JojoD818 · « **Reply #47 on:** May 31, 2006 at 01:12 AM »

Sent you PM.

thank you

ganicru · « **Reply #48 on:** Jun 01, 2006 at 02:50 PM »

Quote from: JojoD818 on Apr 20, 2006 at 11:32 PM

I think it is order basis for the EH EL34, but if you want to try the Svet EL34 you can go to Silver Strings, they also have 12AX7, 12AU7 there I think. Or you may try calling up sir Andrew of AMX if he has a set of EH EL34 for you.

EDIT: You may also try EH 6CA7 fatboys errr fat bottles. They are direct replacements for the EL34 and for me, very nice tubes indeed. Got mine from SG.

Luckily, my friend from Hong Kong brought for me quad EH 6CA7, pair of EH12AX7 Gold, all for P5K only, all original, russian made. Wow, my MT35 sounds like a new system. High is more refined, low is more articulate, mids is sweet and forward, of course with the Epos M12.2

AudioAmplified · « **Reply #49 on:** Jun 01, 2006 at 03:22 PM »

wow sir thats a very good price.... any more of those 6ca7? they are very very good tubes. another way to improve the already good mt-35 is change the caps - mundorf

JojoD818 · « **Reply #50 on:** Jun 02, 2006 at 12:03 AM »

Congrats on your 6CA7! My quad are still in their original boxes waiting for that right time when it's a cold night and raining outside.

I agree with AudioAmplified, those Mundorf caps are great.

ganicru · « **Reply #51 on:** Jun 02, 2006 at 03:24 PM »

Quote from: AudioAmplified on Jun 01, 2006 at 03:22 PM

wow sir thats a very good price.... any more of those 6ca7? they are very very good tubes. another way to improve the already good mt-35 is change the caps - mundorf

How to change the caps to mundorf? Magkano po kaya?

s2kov · « **Reply #52 on:** Jun 03, 2006 at 09:00 AM »

palitan mo lng wala naman polarity yan eh!

Quote from: ganicru on Jun 02, 2006 at 03:24 PM

How to change the caps to mundorf? Magkano po kaya?

AudioAmplified · « **Reply #53 on:** Jun 03, 2006 at 09:31 AM »

As Noel said... just line up the name para maganda tignan and SOLDER hahaha... Yes Mundorf doesnt have directionality which makes life a lot easier. They have several models of caps - MCap, Zn, Supreme, Silver Oil and Silver Gold.

Text or pm noel - 09189068718 and he can help you with that.

JojoD818 · « **Reply #54 on:** Jun 04, 2006 at 04:14 AM »

has the Mundorf prices already been posted in this forum?

if not, why not post it here on this thread for our friend's choosing convinience.

Garp · « **Reply #55 on:** Jun 04, 2006 at 10:46 AM »

Quote from: ganicru on Jun 02, 2006 at 03:24 PM

How to change the caps to mundorf? Magkano po kaya?

I would suggest try to measure the space before fitting in the caps first.

I had a b**** of a time trying to fit these in. The Mundorf caps are smaller so should be easier. Too bad la pang Mundorf noon. Thanks to Audio Amplified the Mundorfs are here.

Before

After

bono · « **Reply #56 on:** Jun 04, 2006 at 11:36 AM »

Garp,

How does it sound after you change the caps to murdorf? thanks!

Garp · « **Reply #57 on:** Jun 04, 2006 at 09:56 PM »

Bono,
I haven't tried Mundorfs. What's in the pic are Multicap RTX.

P.S. Jojo, sorry for hijacking your thread.

JojoD818 · « **Reply #58 on:** Jun 05, 2006 at 12:33 PM »

Quote from: Garp on Jun 04, 2006 at 09:56 PM

Bono,
I haven't tried Mundorfs. What's in the pic are Multicap RTX.

P.S. Jojo, sorry for hijacking your thread.

Keep 'em coming bro, no problem. As long as they are using tubes and for audio.

My fingers won't fit na on your amp, nice work.

JojoD818 · « **Reply #59 on:** Jun 05, 2006 at 12:37 PM »

AudioAmplified,

Is there a website containing mechanical drawings of different types of Mundorf Caps? I was under the impression that these caps are much bigger than other caps in the market and would surely love to have an idea if they can fit to a project's real estate.

Thanks,
JojoD