This is a very high quality combo (Rec/Play) head to fit many 3 head cassette decks. It is brand new. I bought a few of these heads thirty years ago and they are extremely rare. The record head is also inserted with a block of amorphous alloy to prevent headwear, so it is beautifully made. Look at pics.Specs are as follows.
Record Head impedance:130 ohms
Playback Head impedance: 300 ohms
Bottom plate length (crossways) 22.5 mm
Hole to hole:16 - 18 mm
Head face to hole:11 mm (read note below)
The distance from the face of the Rec/Play head in respect to the mounting holes is important as this governs the head to tape contact when in play mode. Buy it now with free postage anywhere in Australia. Any questions, please feel free to contact me.