Go Back   Home > Forums > >

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Vaccum tube Equalizer schematic?
Vaccum tube Equalizer schematic?
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
Reply
 
Thread Tools
Old 24th November 2020, 08:57 AM   #31
kissabout2002 is offline kissabout2002  Italy
diyAudio Member
 
Join Date: Sep 2018
Location: Philippines
The Blonder-Tongue Audio Baton replica on the way, I just finished one channel and test it.

I stick to the original schematic but I add a 5 led bar graph, led VU meter and an unusual power supply that works very well.

The second channel will be upside down for fit inside a 3U cabinet and when finish will looks as the picture of the front panel. Both channel will be completely independent.

Sound is excellent just some minor noise issue but I will work out on it, this is just the first test.

All the best to everybody.
Attached Images
File Type: jpg IMG_3985.jpg (400.2 KB, 152 views)
File Type: jpg IMG_3982.JPG (788.3 KB, 149 views)
File Type: jpg IMG_3984.JPG (829.1 KB, 146 views)
File Type: png Screen Shot 2020-11-24 at 4.16.35 PM.png (127.9 KB, 154 views)
File Type: png Screen Shot 2020-11-24 at 4.27.40 PM.png (149.9 KB, 149 views)
File Type: jpg 9cf12c0bd999bd784a628b940fb7a8e8.jpg (132.8 KB, 57 views)
  Reply With Quote
Old 24th November 2020, 12:01 PM   #32
kodabmx is offline kodabmx  Canada
Spreading triode love.
diyAudio Member
 
kodabmx's Avatar
 
Join Date: Oct 2011
Location: Toronto
Vaccum tube Equalizer schematic?
That little boost module might be your source of noise. I have found them to be terrible, quite frankly.

I would recommend trying one of these instead if you do determine it's coming from the boost module.

DC-AC Converter 12V to 110V 200V 220V 280V 150W Inverter Boost Board Transformer | eBay

Awesome project man.
Koda
__________________
If you can't learn to do something well, learn how to enjoy doing it poorly.
  Reply With Quote
Old 24th November 2020, 12:33 PM   #33
kissabout2002 is offline kissabout2002  Italy
diyAudio Member
 
Join Date: Sep 2018
Location: Philippines
Hi Koda thank you very much for the tips, on the first test was very terrible then I add a resistor and 100uf cap and the bad noise goes away, the remaining noise is very small and I think is because all the potentiometer are not grounded yet, but I want for sure try the inverter boost you suggested, I know you have a big experience on it....thanks again
  Reply With Quote
Old 24th November 2020, 12:39 PM   #34
kodabmx is offline kodabmx  Canada
Spreading triode love.
diyAudio Member
 
kodabmx's Avatar
 
Join Date: Oct 2011
Location: Toronto
Vaccum tube Equalizer schematic?
You're welcome. Since you're in the Philippines, you can probably find another seller that offers them for like 1/2 the price. Look around on eBay and Ali.
One nice thing about the one I linked is it's push pull instead of SE, and it's isolated. I use them for negative supplies for bias, too
__________________
If you can't learn to do something well, learn how to enjoy doing it poorly.
  Reply With Quote
Old 24th November 2020, 12:44 PM   #35
kissabout2002 is offline kissabout2002  Italy
diyAudio Member
 
Join Date: Sep 2018
Location: Philippines
I already find it https://shopee.ph/SUNYIMA-DC-AC-Conv...930.5163547118 thanks
  Reply With Quote
Old 8th December 2020, 03:15 AM   #36
kissabout2002 is offline kissabout2002  Italy
diyAudio Member
 
Join Date: Sep 2018
Location: Philippines
Quote:
Originally Posted by kodabmx View Post
That little boost module might be your source of noise. I have found them to be terrible, quite frankly.

I would recommend trying one of these instead if you do determine it's coming from the boost module.

DC-AC Converter 12V to 110V 200V 220V 280V 150W Inverter Boost Board Transformer | eBay

Awesome project man.
Koda
I received yesterday and test it and all noise gone, this is really a good product, thanks Koda....all the best
  Reply With Quote
Old 8th December 2020, 03:29 PM   #37
kodabmx is offline kodabmx  Canada
Spreading triode love.
diyAudio Member
 
kodabmx's Avatar
 
Join Date: Oct 2011
Location: Toronto
Vaccum tube Equalizer schematic?
Glad it worked out for you!
__________________
If you can't learn to do something well, learn how to enjoy doing it poorly.
  Reply With Quote
Old 8th December 2020, 04:28 PM   #38
dgta is offline dgta  United States
diyAudio Member
 
Join Date: May 2011
Koda, is that boost module regulated or ratiometric? I.e. if you feed it higher than 12V will it output a proportionally higher voltage? Thx
  Reply With Quote
Old 8th December 2020, 04:52 PM   #39
kodabmx is offline kodabmx  Canada
Spreading triode love.
diyAudio Member
 
kodabmx's Avatar
 
Join Date: Oct 2011
Location: Toronto
Vaccum tube Equalizer schematic?
It's ratiometric. If you run it from a regulated 12V supply it's as good as regulated though.
__________________
If you can't learn to do something well, learn how to enjoy doing it poorly.
  Reply to this post

Reply


Vaccum tube Equalizer schematic?Hide this!Advertise here!
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Are we committing suicide?! (Asbestos in vaccum tube base) ARIYAHOOR Tubes / Valves 41 13th June 2012 06:07 PM
Minature Vaccum Tube Question Mark A. Gulbrandsen Tubes / Valves 12 1st June 2005 05:01 AM
Lm4780 with vaccum tube almu100 Chip Amps 0 27th February 2005 02:48 PM
MXR Equalizer Model 170 schematic needed rh1530 Instruments and Amps 0 24th January 2004 02:54 AM


New To Site? Need Help?

All times are GMT. The time now is 09:05 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki