Modulation Transformers

(TA) TF1A13YY

Primary: 5000 ohm - DC
Secondary: 100 ohm - DC, 90V
Current: 100mA, 81 Watts

Kenyon 811A matching transformer. Source impedance: two 811A tubes in push-pull. Hermetically sealed. 1,070 peak wv. NSN: 5950-553-3484.

(TA) 40043

14.75k Ohm Primary - 6.6k (w / 5.75k tap)
350mA DC secondary - 8kV test
Dimensions: 5-1/4" x 6-1/4" x 7-1/2"H (incl. insulators)

Removed from Wilcox transmitters, these 350 watt modulation transformers are ready for a second life. They operated plate to plate on a pair of class B, 813 valves to modulate a single 250TL RF amp. This is an auto-transformer with multiple series windings. Call for details. 5-1/4" x 6-1/4" x 7-1/2" high, including insulators. We will include a copy of the Wilcox circuit in which the transformer was used.

(TA) AX3398

Dimensions: 9-1/4" x 9-1/2" x 13"H
Manufactured by Continental Electronics
Alt. P/N: CE P/N: CE-10-07-01, L12A on schematic notation

Continental Electronics modulation transformer. No specs. Spare for Continental 420.

(TA) A3104

2k - 20k
15 watts
Dimensions: 4" x 3" x 3-1/2"H

Merit Universal modulation transformer. 15 watts, 2k - 20k. Brand new in the box.

(TA) A3110

Primary: 6 kct or 10 kct
Secondary: 4000, 5000, 7500, 10k or 12k ohm
Dimensions: 3-3/4" x 3-1/2" x 4-1/4"H

Merit 60 watt modulation transformer. New in the box.