Altec-Lansing 1570Bs...my my. Been a long time since I've seen them mentioned. Had a pair years ago, to drive some electrostatics. They sounded pretty good but they were WAY too complicated, with their transformer-coupled circuitry and something-like-1200vdc powersupply rail.
Does the 1570 use a pentode* somewhere in the voltage-gain circuitry?
*--I recall in the '80s a Tim deParavacini/EAR preamp that used 6 triode sections in parallel to decrease fono-stage noise but then a PENTODE following that.
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Does the 1570 use a pentode* somewhere in the voltage-gain circuitry?
*--I recall in the '80s a Tim deParavacini/EAR preamp that used 6 triode sections in parallel to decrease fono-stage noise but then a PENTODE following that.
.