Push Pull 6BX7 ,KT66 ,5B-255M , 7591A

The 5B-254/5M is a similar Retro Mono Block Version of the Brimar 25PI  >  0.1 % distortion at full power , 25 watts Ultra Linear, 30 watts Tetrode including the new R Core Output Transformer 4Hz - 55KHz  -1dB  4v@8K,  or Lundahl Transformers ,very similar footprint to the Quad 11 Mono's . 

The 5B-255M also has a triode mode switch and similar to the Vintage UK Parmeco A.P. 32020 in its design.

The 7591A is well known in the Vintage Macintosh 225 and Fisher Amplifier range Fisher X-101c , we will reflect the Vintage look and design in our Push Pull 7591A  -Mono Blocks, 26 watts