Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Hoffman Turret and Eyelet Boards => Topic started by: EL34 on July 31, 2014, 10:55:10 am

Title: Hoffman Stout TMB and Stout
Post by: EL34 on July 31, 2014, 10:55:10 am

The layout Diagram, Schematic, BOM, Sound clips and build information can be found on the library page here
http://el34world.com/schematics.htm (http://el34world.com/schematics.htm)

Layout and Schematic for the Stout TMB and Stout
http://el34world.com/Hoffman/files/Hoffman_Stout.pdf (http://el34world.com/Hoffman/files/Hoffman_Stout.pdf)

BOM - Parts list for the Stout TMB and Stout
http://el34world.com/Hoffman/files/Hoffman_Stout_BOM.pdf (http://el34world.com/Hoffman/files/Hoffman_Stout_BOM.pdf)

Hoffman Board install instructions (http://el34world.com/Hoffman/instructions.htm)

Hoffman Turret Boards are on this page
http://hoffmanamps.com/MyStore/catalog/TurretBoard.htm (http://hoffmanamps.com/MyStore/catalog/TurretBoard.htm)


The parts list for this build is here
http://hoffmanamps.com/MyStore/catalog/PartsListIndex.htm (http://hoffmanamps.com/MyStore/catalog/PartsListIndex.htm)

Here's a sound clip of the Stout TMB
http://el34world.com/Misc/Music/files/StoutTMBDemo3.mp3 (http://el34world.com/Misc/Music/files/StoutTMBDemo3.mp3)


I updated the Stout PDF file to include a DPDT switch that can switch the extra gain stage On/Off
I also fixed the long standing phase inverter .022 cap error and made it go to new spot
The stout TMB version has Treble, Middle and bass.
I added negative feedback to quiet the stout down and control some of the nasty distortion bits from the original stout circuit

Title: Re: Hoffman Stout TMB
Post by: EL34 on August 21, 2014, 09:14:02 am

I updated the Stout PDF file to include a DPDT switch that can switch the extra gain stage On/Off

Title: Re: Hoffman Stout TMB
Post by: EL34 on August 29, 2014, 03:42:45 pm

Here's a Black Stout TMB with lugs installed

Title: Re: Hoffman Stout TMB
Post by: EL34 on December 04, 2014, 01:25:40 pm

Here's a video clip of the Stout TMB
The cmarta mic sounded bad on this video clip

Here's a sound clip with a good mic
http://el34world.com/Misc/Music/files/StoutTMBDemo3.mp3 (http://el34world.com/Misc/Music/files/StoutTMBDemo3.mp3)

Hoffman 18 Watt Stout TMB Part 2 (http://www.youtube.com/watch?v=fX-9a2k0WZc#ws)

Title: Re: Hoffman Stout TMB
Post by: EL34 on February 02, 2015, 02:30:21 pm

I went ahead and made a face plate for my 18 Watt Stout.
It came out pretty nice.
It's reversed engraved and then white paint was applied to the engravings


Note that I do not make these faceplates for sale
It's a huge amount of time and labor and I am not really set up to make faceplates with my CNC machine

Title: Re: Hoffman Stout TMB
Post by: EL34 on February 13, 2015, 09:30:16 am

I updated the Stout and Stout TMB PDF file with the voltages

Title: Re: Hoffman Stout TMB and Stout
Post by: EL34 on March 08, 2015, 08:52:50 am

Here's my Stout TMB and my Plexi 6V6 in cabinets made by Sivergun