diyAudio - Blog Entries
Go Back   Home > Forums > Blogs
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Old

TSEC's Passive Ring Modulator In Action At Space Egg.

Posted 9th June 2011 at 09:42 AM by The Space Egg Corp

TSEC's Passive Ring Modulator In Action At Space Egg.
Attached Thumbnails
Click image for larger version

Name:	Passive Ring Modulator 2.jpg
Views:	324
Size:	152.4 KB
ID:	418   Click image for larger version

Name:	Passive Ring Modulator.jpg
Views:	259
Size:	185.5 KB
ID:	419   Click image for larger version

Name:	Xmas 2010 At Space Egg.jpg
Views:	209
Size:	139.6 KB
ID:	420   Click image for larger version

Name:	Xmas 2010 At Space Egg Studio.jpg
Views:	311
Size:	113.9 KB
ID:	421   Click image for larger version

Name:	Yamaha.jpg
Views:	177
Size:	119.2 KB
ID:	422  

Click image for larger version

Name:	ringmodulator (Large).jpg
Views:	884
Size:	30.6 KB
ID:	423  
The Space Egg Corp's Avatar
diyAudio Member
Posted in Uncategorized
Views 2063 Comments 0 The Space Egg Corp is offline
Old

TSEC's DM1 Soft Distortion Fuzz-Box (The Dirty Muther).

Posted 9th June 2011 at 09:08 AM by The Space Egg Corp

TSEC's DM1 Soft Distortion Fuzz-Box (The Dirty Muther).
Attached Thumbnails
Click image for larger version

Name:	Diode-closeup.jpg
Views:	1505
Size:	580.3 KB
ID:	411   Click image for larger version

Name:	DM1.jpg
Views:	320
Size:	373.0 KB
ID:	412   Click image for larger version

Name:	DM 1.jpg
Views:	245
Size:	161.5 KB
ID:	413   Click image for larger version

Name:	DM-1.jpg
Views:	276
Size:	287.5 KB
ID:	414   Click image for larger version

Name:	DM- 1.jpg
Views:	211
Size:	168.0 KB
ID:	415  

Click image for larger version

Name:	DM -1.jpg
Views:	241
Size:	123.8 KB
ID:	416   Click image for larger version

Name:	DM Logo Close-Up (Large).jpg
Views:	3215
Size:	42.9 KB
ID:	417  
The Space Egg Corp's Avatar
diyAudio Member
Posted in Uncategorized
Views 2674 Comments 0 The Space Egg Corp is offline
Old

More Distortion? Yes Please!

Posted 3rd June 2011 at 04:58 PM by Pano

Can High Fidelity include audible distortion?

From the ultimate heights of fidelity we should hear a perfect reproduction of the recorded signal all the way from source to speakers – right? Perhaps that depends on your idea of fidelity. Where does your fidelity lie? What are you being faithful to? To the recorded waveform, or something else? Could your idea of fidelity be that you want the final result to be faithful to the direct sound of the music? Is your goal a faithful reproduction of the music, or of the recorded signal? The two are certainly not mutually exclusive, but can often be at odds.

Low distortion is the second of the two founding pillars of HiFi - frequency response being the first. Any distortion alters the signal, therefore it must be wrong. Or so says conventional thinking. To be highly faithful to the signal, we must alter it as little as possible, granted the possible exception of overall level or volume. But what if our goal...
Pano's Avatar
diyAudio Moderator
Posted in Uncategorized
Views 3175 Comments 31 Pano is offline
Old

I guess I'll post this to my Blog!

Posted 2nd June 2011 at 08:01 AM by DigitalJunkie
Updated 2nd June 2011 at 08:08 AM by DigitalJunkie

Inspired by This Thread I decided to build something similar,I've though about it before,and had some parts sitting here,so what the heck!

Amp Schematic

PSU schematic


Here's what I've got at the moment.
25BQ6GTB tubes,(re-)branded DuMont. These are the skinny 6V6-sized bottles.(11W anode rating,and ~200V screen rating)

A pair of those are driving a 3.5K PP output transformer,rated for ~100W. (came from a scrapped Bogen M120 4x PPP 8417 amp.)

Bogen Schematic

B+=457V
Va=455V
B2+/Vg2=224V
Vg1=-43V
Vk (33ohm Rk's) ~1.3V ,About 40ma/tube.
(I saw cathode current peaks of ~80ma per tube,perhaps more? hard to tell with my DMM)

That gives a dissipation of ~18W per tube. Much more current and the plates start to 'blush'.
I did *not* see any screen glow,but the mica's on these particular tubes make it kind of hard to see much inside....
diyAudio Member
Posted in Uncategorized
Views 2095 Comments 0 DigitalJunkie is offline
Old

Yikes! Now what did I do?

Posted 1st June 2011 at 04:45 PM by Pano

This morning I was waking up the music server to have a listen. I run a Windoze XP box with JRiver Media Center.

JRiver gave me a pop-up error message that there had been an incomplete shutdown, did I want to fix any problems? There had been a power outage for a couple of hours last night that shut down the server. So if course I clicked "OK".

Bam! Screen goes dark. WTF? I look at the crossover and the tube amps - all dark. All dead. Now what I have done?

Well, it wasn't my mouse click that killed everything, the power was out again. Phew. But talk about scary timing. Click OK and everything dies right on the click.

Fortunately for us we have a 12KW generator that kicks in and can run the whole house.

All back to normal now.
Pano's Avatar
diyAudio Moderator
Posted in Uncategorized
Views 1431 Comments 2 Pano is offline
Old

For those interested in Speakers Here how is made

Posted 27th May 2011 at 06:55 PM by ANYspeakersrepair

You can see how a speaker is made in
Discovery channel how speaker is made
or http://www.youtube.com/watch?v=VN0tmyyC0ak
Attached Thumbnails
Click image for larger version

Name:	logoBAL.gif
Views:	173
Size:	38.6 KB
ID:	410  
diyAudio Member
Posted in Uncategorized
Views 1050 Comments 3 ANYspeakersrepair is offline
Old

ETI 480 Power Supply

Posted 26th May 2011 at 07:36 AM by jayb1

I have an old Dick Smiths ETI 480 Power Supply. What I don't have ia any information or the Scematic for it.Tthere is plenty of information for the 480 Amp, but that's not what I want. Just the instructions for the Power Supply.

Any help please.
diyAudio Member
Posted in Uncategorized
Views 1335 Comments 1 jayb1 is offline
Old

TSEC's Jordan JX92 Cabinets Under Construction.

Posted 23rd May 2011 at 06:26 PM by The Space Egg Corp

TSEC's Jordan JX92 Cabinets Under Construction.
Attached Thumbnails
Click image for larger version

Name:	Cabinets For Jordan JX92's (Medium).jpg
Views:	509
Size:	72.8 KB
ID:	404   Click image for larger version

Name:	Baffles For Jordan JX92's (Medium).jpg
Views:	308
Size:	59.9 KB
ID:	405   Click image for larger version

Name:	Jordan JX92 Cabinet Front (Medium).jpg
Views:	406
Size:	79.3 KB
ID:	406   Click image for larger version

Name:	Jordan JX92 Cabinet Side (Medium).jpg
Views:	384
Size:	90.8 KB
ID:	407   Click image for larger version

Name:	Jordan JX92 Cabinet Rear (Medium).jpg
Views:	323
Size:	85.3 KB
ID:	408  

Click image for larger version

Name:	Cabinet Backs For Jordan JX92's (Medium).jpg
Views:	377
Size:	71.0 KB
ID:	409  
The Space Egg Corp's Avatar
diyAudio Member
Posted in Uncategorized
Views 2154 Comments 2 The Space Egg Corp is offline
Old

TSEC's Karlson Project Is Progressing.

Posted 23rd May 2011 at 05:57 PM by The Space Egg Corp

Plywood & MDF flattening.
Possible cabinet layout drawing.
Attached Thumbnails
Click image for larger version

Name:	Plywood & MDF Flattening (Medium).jpg
Views:	613
Size:	76.5 KB
ID:	402   Click image for larger version

Name:	Karlson Back-Horn Drawing (Medium).jpg
Views:	940
Size:	79.0 KB
ID:	403  
The Space Egg Corp's Avatar
diyAudio Member
Posted in Uncategorized
Views 1027 Comments 0 The Space Egg Corp is offline
Old

Transformer for Pedja Rogic´s DDNF I/V Stage

Posted 23rd May 2011 at 10:44 AM by dvb projekt
Updated 14th June 2013 at 09:47 AM by dvb projekt

If you would build the DDNF I/V stage with my PSU & Salas Shunt modules,
you could order a custom made transformer at
AE-Europe.

It has the following data:

Primary:

115-0 / 115-0
(for 115V & 230V usage)

Secondary:

24V-0-24V / 2A
24V-0 / 2A
Magnetic Shield

You could order two versions:

- Standard: EI-core € 64,-

- High End: C-core (same size as 30317) € 112,-

Prices are excl. shipping and VAT
Delivery time around 6 weeks after order.


dvb projekt's Avatar
diyAudio Member
Views 2492 Comments 5 dvb projekt is offline
Hide this!Advertise here!

New To Site? Need Help?

All times are GMT. The time now is 03:07 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki