Tascam 238 688 erase head 53786017 measuring the thread like top

measuring the thread like top of tooth to top of tooth is 2

if you look at your cassette unit inside it will be marked GEC and these keys it seems fit these units

This is a smaller solenoid but came from a Teac A3440

Only have the one in this condition offer a 30 day guarantee on it though reckon it will last a lot longer

Teac/Tascam reel to reel motor Model EM1542

Tascam 238 688 erase head 53786017 measuring the thread like topI have seen this head in the 238 and the 688 and it maybe will be common in others I sell these heads now only lapped and tested to insure the quality and function, they have been professionally re lapped already and good to go, comes with a test report