The preamp is modded to early 70's metalpanel specs, bias circuit and power amp are modded to accept also EL34 tubes. Low dynamic range boosted with a YJM308 modded to 70's gray specs DOD250. Two 4x12 cabinets w/ V30 speakers, amp impedance 7,6 ohms, total load impedance 4 ohms.
oh dear that amp is now ruined mod it back to KT's or atleast 6550's
ChristianBurrell 1 year ago