Vintage Mardis A3D426 Ultra Shielded 1:1 Can Input Transformer For DIY, Etc. IT

Used, vintage Mardfis A3D426 Ultra Shielded 1:1 Can Input Transformer For DIY, Etc.. These are excellent quality input transformers that were used on the Dolby 361, 362, and other models. They have excellent, flat response with deep low end extension. They are extremely well shielded, making them a great choice for projects where the input transformer cannot be installed very far away from the power transformer. I tested these transformers with large transformers in close proximity and was amazed to see that they picked up no hum or EMF at all. They are used and tested, in great condition. Manufactured in the U.K.

Maximum undistorted output level at 20 Hz. is +23
Frequency response is 20 Hz to 25 kHz +/- 1/2 db
Primary/Secondary ratio is 1:1
Designed for load impedance of 10k on transformer secondary, For higher impedance loads, a termination resistor of approx. 10k is advised.
Output impedance is 10k
Input impedance is 10k or lower
Includes external connection for electrostatic shield.
Outside dimensions of can are 1.75 (45mm) long, 1.25 (32mm) diameter. Threaded stud mount requires 5/16 (8mm) round mounting hole.

Transformers are in excellent condition. A wiring diagram will included.