Try this: go to www.nteinc.com,click on Semiconductor (for searching) and type in the transistor number. If there is a replacement made by NTE, it will be shown and you can look at the data sheet if it’s online. Since NTE and ECG share the same numbers, you should be able to find either NTE or ECG parts at your local electronics store. Usually these replacements will work fine. Only in very special circumstances will the replacement parts fail to work. From Jay Doyle: The best advice I could give anybody getting started in DIY effects, is to go to the Free Trade Zone and sign up: http://www.freetradezone.com/index.html You can search by part number, manufacturer and keyword. They’ve had pretty much everything that I’ve ever searched for except some obscure transistors. The search results give you every model made by each manufacturer with datasheets, applicable appnotes and has a parametric search. After that you can search their database to find the lowest price at something like 40 d