For sale vintage ,collectible OHAU Tonemaster® amp." The Tweed killer" Great for low volume practice, recording or around the house jamming with plenty of umph for gigging with.. Plug into one of the 2 instrument inputs and the amp gives up a nice class-A overdrive growl when you push the volume - especially with high output pickups. The amp keeps rich character even when the tone control is set to the maximum treble (high) setting. The 8" Rola kicks into gear at the "high" volume setting, adding a nice overdriven flavor . With a 6V6 class-A overdrive distortion and speaker break up. This Oahu amp also has the microphone input, this is where the nice action is gain wise, and this little jewel is no exception! Great volume and harmonics for such a small package. You will see this amp branded as Supro, Oahu, El Grande, Kalina - as well as others. The circuit doesn't get much simpler than this, with a 6SL7GT High-Nu win triode preamp tube, a 6V6GT Beam power tube and a 5Y3 full-wave rectifier as the tube compliment driving the 8" Rola speaker. You can pay a thousand more for the tweed inferior counterpart , but why would you do that ? 3 prong grounded cord, replaced bad caps as pictured, she is ready to rock n roll.