The flexibility of Triad J Series transformers permits amplifiers to exceed broadcast standards. Although economy in construction places them in a lower price class, these units approach and closely approximate the performance characteristics of more costly hermetically sealed units.
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Item #

Item Name

Power Level

Primary Impedance

Secondary Impedance

DC Resistance (Primary)

DC Resistance (Secondary)

Overall Turns Ratio

View CAD

Quantity
A-9J N/A 32.7 Ohm Primary DC Resistance J Series Audio Transformer N/A 1 mW N/A 50 Ohm250 Ohm600 Ohm N/A 85000 Ohm N/A 32.7 Ohm N/A 3450 Ohm N/A 1:12 N/A
A-10J N/A 33.7 Ohm Primary DC Resistance J Series Audio Transformer N/A 1 mW N/A 150 Ohm600 Ohm N/A 60000 Ohm N/A 33.7 Ohm N/A 4040 Ohm N/A 1:10.5 N/A
A-11J N/A 50 Ohm Primary DC Resistance J Series Audio Transformer N/A 10 mW N/A 50 Ohm250 Ohm600 Ohm N/A 60000 Ohm N/A 50 Ohm N/A 5000 Ohm N/A 1:10 N/A
A-12J N/A 50 Ohm Primary DC Resistance J Series Audio Transformer N/A 10 mW N/A 150 Ohm600 Ohm N/A 60000 Ohm N/A 50 Ohm N/A 4920 Ohm N/A 1:10 N/A
A-13J N/A 62 Ohm Primary DC Resistance J Series Audio Transformer N/A 1 mW N/A 50 Ohm110 Ohm200 Ohm300 Ohm600 Ohm N/A 150 Ohm600 Ohm N/A 62 Ohm N/A 70 Ohm N/A 1:1 N/A
A-40J N/A 1540 Ohm Primary DC Resistance J Series Audio Transformer N/A 10 mW N/A 15000 Ohm N/A 115000 Ohm N/A 1540 Ohm N/A 4020 Ohm N/A 1:2.76 N/A
A-41J N/A 1392 Ohm Primary DC Resistance J Series Audio Transformer N/A 32 mW N/A 15000 Ohm N/A 80000 Ohm N/A 1392 Ohm N/A 8109 Ohm N/A 1:2.3 N/A
A-52J N/A 50 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 125 Ohm500 Ohm N/A 500 Ohm2000 Ohm N/A 50 Ohm N/A 200 Ohm N/A 1:2 N/A
A-55J N/A 1020 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 15000 Ohm N/A 50 Ohm250 Ohm600 Ohm N/A 1020 Ohm N/A 46 Ohm N/A 5:1 N/A
A-56J N/A 50 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 125 Ohm500 Ohm N/A 4 Ohm16 Ohm N/A 50 Ohm N/A 1.5 Ohm N/A 5.6:1 N/A
A-57J N/A 40 Ohm Primary DC Resistance J Series Audio Transformer N/A 50 mW N/A 50 Ohm250 Ohm600 Ohm N/A 50 Ohm250 Ohm600 Ohm N/A 40 Ohm N/A 44 Ohm N/A 1:1 N/A
A-58J N/A 1000 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 2500 Ohm10000 Ohm N/A 500 Ohm2000 Ohm N/A 1000 Ohm N/A 200 Ohm N/A 2.24:1 N/A
A-61J N/A 47 Ohm Primary DC Resistance J Series Audio Transformer N/A 50 mW N/A 150 Ohm600 Ohm N/A 150 Ohm600 Ohm N/A 47 Ohm N/A 40 Ohm N/A 1.4:1:1 N/A
A-64J N/A 10 Ohm Primary DC Resistance J Series Audio Transformer N/A 500 mW N/A 25 Ohm100 Ohm N/A 10 Ohm40 Ohm N/A 10 Ohm N/A 4 Ohm N/A 1.58:1 N/A
A-65J N/A 1630 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 15000 Ohm N/A 150 Ohm600 Ohm N/A 1630 Ohm N/A 73 Ohm N/A 5:1 N/A
A-66J N/A 1740 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 15000 Ohm N/A 50 Ohm250 Ohm600 Ohm N/A 1740 Ohm N/A 81.2 Ohm N/A 5:1 N/A
A-67J N/A 43.8 Ohm Primary DC Resistance J Series Audio Transformer N/A 50 mW N/A 150 Ohm600 Ohm N/A 150 Ohm600 Ohm N/A 43.8 Ohm N/A 44.1 Ohm N/A 1:1 N/A
A-68J N/A 1723 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 15000 Ohm N/A 150 Ohm600 Ohm N/A 1723 Ohm N/A 81 Ohm N/A 5:1 N/A
A-69J N/A 2500 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 6250 Ohm25000 Ohm N/A 125 Ohm500 Ohm N/A 2500 Ohm N/A 50 Ohm N/A 7.1:1 N/A
A-70J N/A 50 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 125 Ohm500 Ohm N/A 25 Ohm100 Ohm N/A 50 Ohm N/A 10 Ohm N/A 2.24:1 N/A
A-75J N/A 470 Ohm Primary DC Resistance J Series Audio Transformer N/A N/A 16 Ohm N/A N/A 470 Ohm N/A N/A N/A
A-78J N/A 112 Ohm Primary DC Resistance J Series Audio Transformer N/A 100 mW N/A 2000 Ohm N/A 150 Ohm600 Ohm N/A 112 Ohm N/A 48.5 Ohm N/A 1.82:1 N/A
A-79J N/A 302 Ohm Primary DC Resistance J Series Audio Transformer N/A 200 mW N/A 1000 Ohm N/A 50 Ohm200 Ohm N/A 302 Ohm N/A 138 Ohm N/A 2.2:1 N/A
A-80J N/A 53.4 Ohm Primary DC Resistance J Series Audio Transformer N/A 1 mW N/A 225 Ohm900 Ohm N/A 60000 Ohm N/A 53.4 Ohm N/A 4178 Ohm N/A 1:8.7 N/A
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