Pulled from very high specification broadcast audio equipment, designed and manufactured by the infamous PKE which later morphed into Elan Audio
PKE (Poul Kirk Electronics, Perth Australia)
Model: unknown
Turns ratio: 1 - 5
Impedance: 200 Ohm - 5K Ohm
Measured DC resistance: 45 Ohm - 600 Ohm
Metal block physical construction (probably mu metal)
Dimensions: 20mm diameter x 20mm height x 20mm width
PCB mounting
4x4 pins plus two tabs for the outer case connections
Each side of the case is marked, I believe these markings indicate as follows:
PEEP - Primary - Earth - Earth - Primary
SEEC - Secondary - Earth - Earth - Common
DC tests confirm this and those Earth points are all connected together but NOT to the case
Known to be working prior to dismantling and also DC Ohm tested prior to advertising
Because I had some basic test equipment on the bench testing other transformers, I went back and confirmed some characteristics of this transformer
AWA G232 Audio Oscillator + Leader AC Millivoltmeter
100mV input @ 1Khz
Turns ratio is 1 : 5.24
Impedance ratio is 1 : 27.4
Designed and intended for low level analog audio, such as source to equipment input impedance matching.
Stored and provided in a sealed plastic bag.
It would be nice to have more detailed specificatons but I cannot find the datasheets, it would be safe to assume these will be fine up to at least 18Khz (3dB points) - PKE designed and made great, high quality components and equipment for the Australian broadcasting industry.
