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

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

Mable  Audio 300B Amp KitI
Mable  Audio 300B Amp KitI
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
Thread Tools Search this Thread
Old 1st March 2016, 05:02 PM   #1
Guarnera is offline Guarnera  United States
diyAudio Member
Join Date: Feb 2010
Location: S.California
Default Mable Audio 300B Amp KitI

Has anyone heard this amp? I am looking for a 300B, 6SN7 amp kit with 3.5K output transformers. I have been trying to build a 300B amp. I have been having problems with this design. So I have been contemplating a simpler design. I have all high quality parts to replace most of the parts in a kit. I also have a pair of Electraprint 3.5K output transformers. So I need a kit that uses 3.5K tranny's. I saw a kit from Mable Audio that states they use 3.5K's. There are a few kits on the bay that look exactly the same, but don't mention the value of the output tranny's. So does anyone know anything about the Mable Audio Kit, or about another inexpensive kit that uses 3.5K output Transformers?
I'm looking for a cheap kit with a good design because I have All the better parts, like WBT next Gen Silver RCA's, Teflon tube sockets, Better caps and resistors etc., etc.
On ebay there is an assembled amp by Douk Audio that looks the same except it looks like they added some bridge rectifiers on the filaments for the 300B's.
So if you know about these amps or others with 3.5K output transformers please let me know. Thank you very much.
  Reply With Quote
Old 1st March 2016, 05:12 PM   #2
Parafeed813 is offline Parafeed813  Netherlands
diyAudio Member
Join Date: Aug 2012
If you already have a lot of parts, why get a kit?
I'd look at a well supported design instead of getting parts you're not going to use.
Have a look at the site of forum member tubelab.com.
  Reply With Quote
Old 1st March 2016, 05:29 PM   #3
Guarnera is offline Guarnera  United States
diyAudio Member
Join Date: Feb 2010
Location: S.California
Default Tubelab

That's the design I'm having problems with. I get it working, and it works for a while and then craps out. I'm going to give it one more try, since I have the parts. But I'm just thinking ahead. I bought a bunch of the latest recommended Mosfets. Right now, as soon as the B+ comes up, I get a loud hum.
  Reply With Quote


Mable  Audio 300B Amp KitIHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
FS: Lundahl copper and amorphous magnetics and parts for K&K Audio PP 300b monoblocks mattattnet Swap Meet 0 19th May 2012 03:05 PM
Mable Audio vs. Suppo audio sound quality imnewbie Tubes / Valves 9 5th August 2010 08:46 AM
Has anybody purchased from Mable Audio? danFrank Tubes / Valves 6 18th November 2009 01:00 PM
Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5 quality sound Tubes / Valves 0 9th May 2009 04:59 PM
FYI: FS on eBay - Analog Audio SONATA 300B SE Power Amp cartman Swap Meet 0 19th March 2007 09:05 AM

New To Site? Need Help?

All times are GMT. The time now is 01:48 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio