Tweet
i have a baldwin 2 channel organ amp . one channel drove the internal main speaker array, the second drove a built in leslie cabinet. the amp was driven by a massive PT , single gz34 , and has two
OTs. i expected to have two push-pull amps , but the resistance test reveals that where a common OT has something like 120-CT-130 ohms dc resistance, these both show 120-CT-0 primary
and 0.9 ohms secondary . does that imply that these are two single-ended amp channels, using two el-84 tubes in parallel? i was aware of single ended amps that use multiple tubes, but i thought it was typically used in RF transmission .
the amp was mostly gutted when i bought it .and i can find no schematic of this particular design. the third primary wire doesn't seem to do anything. no resistance or apparent inductance.
is there a common amp topography here?
OTs. i expected to have two push-pull amps , but the resistance test reveals that where a common OT has something like 120-CT-130 ohms dc resistance, these both show 120-CT-0 primary
and 0.9 ohms secondary . does that imply that these are two single-ended amp channels, using two el-84 tubes in parallel? i was aware of single ended amps that use multiple tubes, but i thought it was typically used in RF transmission .
the amp was mostly gutted when i bought it .and i can find no schematic of this particular design. the third primary wire doesn't seem to do anything. no resistance or apparent inductance.
is there a common amp topography here?
Comment