Past 2018 project

Roma 5

2 individual channels, normal and high gain with single ended power stage using 6V6 or 6L6.

Below materials are left for memory.

In 2019 I have upgraded electronic circuit of Roma 5 , find latest version here: Roma 5 reverb

Continuation of single ended amp with fixed cathod biased section able to work with 6V6 or 6L6. Pre-amp section includes 2 individual channels: normal like "princton" and dirty with an extra amlification stage able to produce more gain and distortion. This time however I have chosen 10" WGS Veteran speaker (20W , 8 Ohm).

Specification

Cabinet style: horizontal, two color: mint on the sides and ivory in the middle, 3 horizontal openings/wholes for the speaker
2x 1/4" input
2 channels, normal and dirty
Pre-amp section: 2xECC83/12AX7 , two individual with GAIN control, TONE control
Normal channel like a "princtone" 2 stages while dirty channel adds one more amplification stage giving nice overdriven sound and early breaking up
VOLUME control - common for both
Power amp section: 1x 6L6 (10 Watt)
Speaker, 1x10" WGS Veteran 8 Ohm
1x 1/4" output
No negative feedback
Size: 40 cm width, 30 cm height, 23 cm depth
Weight: 8kg
Power supply ~230-240V,50Hz, ~80W

Materials

Check out how it sounds here: link

Roma 5 User Manual.pdf

Roma 5 schematic.pdf