FS: (10) Ampex Beyer Input Transformers *SOLD*

[mjrippe]

This is a lot of ten Ampex part number 4580184-01 input transformers made by Beyer.  Not sure what they came out of*, but all have their mounting nut and decent length leads (the shortest ones are 2" or 5cm).  All are tested and pass audio.  Some leads have cracked insulation, so care must be taken when installing.

* SOLD *

 

[RuudNL]

What is the transformer ratio? (Impedances?)

 

[mjrippe]

What is the transformer ratio? (Impedances?)

I don't know.  One winding measures about 1.2 ohms, the other I can't get a reading on with my DMM!  They were apparently used as input transformers for the AG-100, a solid state unit, but I have not found any other info.  Thought they were tube era, so now I'm open to offers price-wise.

From http://recordist.com/ampex/ag100.html
"Input Impedance: 100,000 ohms, unbalanced. Facilities provided for balancing transformer and microphone preamp. Microphone input 50 to 200 ohms. "