I have heard that a GS35B is a good sub for a 8877? I know that a 8877 is 5v fil. Where the GS35B is 12.6 V Can I change the volts and use this tube in an amp that use a 8877? Will the same socket work? ku4uk@aol.com --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html ---