High Quality ,Wide bandwidth, push pull ultralinear/cathode feedback Output transformers,60W (pair) , splitbobbin topology.
Designed for EL34, KT88,6550 (or others with similar impedance) push-pull amplifiers operating in ultralinear mode or in cathode feedback mode.
All primaries sections are terminated separately in pins giving the benefit of series or cross connection between anodes in each section of bobbin providing better coupling according to the chosen class of operation.
The transformers can be connected to give also 2k2:8R load match. An analytic connection diagram is provided with the transformers.
TECHNICAL FEATURES:
Primary Impedance: 8k7 (Anode to Anode) or 2K2 (depending on the secondary wiring connection)
Secondary Impedance: 8 Ω ultralinear taps : 25%&50% cathode feedback :12-25%
Primary Inductance Lp=165H @17Vrms/50hz
Leakage inductance : 8mH Primary
Dc resistance: 156 Ohm
Max Dc current per tube :250mA (Anode to CT)
Maximum output power : 60W Frequency Response: 3.2Hz-82Khz -3bB
core material: Top quality annealed cold roll grain oriented silicon M6 steel (19Kilogauss) made in Europe
core size : EI96 /55 partially airgaped, for better handling Idc imbalance
Lamination thickness :0.35mm dimensions :98mmx83mmx92mm
weight :3.03Kgr per transformer
Winding method :splitbobbin -layer wound
Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe, wound in Precision Multi section winding, for reduced leakage inductance, low parasitic capacitance and high dielectric strength.
Mounting: vertical or horizontal placement