19-08-2015, 08:34 PM
The source and drain are interchangeable on these and quite a few other small signal JFETs. Somewhere I hope I still have an old (Siliconix?) FET data book with very comprehensive data on these and many other FETs.
On the subject of reversing transistors, the OC140 is a unique bipolar silicon transistor which is symmetrical. Emitter and collector can be freely interchanged. If you do this with most bipolar deivices they still work but you get very low gain. As a bonus you also get very low saturation voltage. This has (rarely) been used in some designs.
Sorry, I'm drivelling all over Yorkie's thread.
On the subject of reversing transistors, the OC140 is a unique bipolar silicon transistor which is symmetrical. Emitter and collector can be freely interchanged. If you do this with most bipolar deivices they still work but you get very low gain. As a bonus you also get very low saturation voltage. This has (rarely) been used in some designs.
Sorry, I'm drivelling all over Yorkie's thread.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
