Note that the typical 100pF bright cap wasn’t fitted on the earliest models. Previous SectionNext Section RESULTS In normal growth media, which contain about 10 μM total copper, the expression of the two copper-ATPases of E. hirae, CopA and CopB, is strongly down-regulated. Amp schematic with 4x ECC83, 2x KT66 & GZ34 (Marshall). 1963 JTM45 Super PA, 45W head This amp was in production from 1965 to 1966. It had 4 channels and 8 inputs.
This suggests that CopY is a repressor similar to the 434 repressor. This amp had 2 channels and 4 inputs. They were introduced in 1993. Beware when replacing the original Sovtek 5881 tubes with EL34 tubes as these amps are only 3 rack units high. Schematic, (Marshall, 1986). Photograph of a 5205. 5210, 50W 1×12″ combo The 5210 was introduced in 1981 and it was discontinued in 1991. This combo is the transistorised version of the 4210 combo. The N terminus of CopY shares sequence identity with βlactamase repressors in the N-terminal but not the C-terminal half.
Previous SectionNext Section Footnotes * This work was supported by Grant 32-37527.93 from the Swiss National Foundation. User manual for the IBS amps (790kB). 6040 IBS, 400W Bass slave amp This bass slave amp was in production from 1985 upto 1992. This amp was 19″ rack mountable. These cabinets were fitted with 4x Celestion G12M Greenback’s. It is said that only 20 of the straight cabinets (1069BXWSP) were made. Allthough the Svetlana EL34 became available a few years later, Marshall didn’t switch back to the use of EL34 tubes in the production of the 30th anniversary amps. The 5100 is the combo version of the 3310 head. The MOD’s Enhanced Learning Credits Scheme (ELC) promotes lifelong learning amongst members of the Armed Forces.