Need help with 2SA1302/2SC3281 bias setting.

Amp/Preamp Asylum

Looking for a new Amp or Preamp? If you're after tubes, post over here.

I know this is predominantly a tube oriented forum but I suspect you guys are my best shot at answering my question. Thanks in advance.

I have managed to troubleshoot and repair a Kyocera R-661 Solid State receiver. I did not have a service manual for the 661 so I was using the one for the R-861 which is pretty much the same except for the output devices. In a moment of stupidity I absentmindedly set the bias current using the 881 numbers, approx 25mA. The 661 uses single matched pair Toshiba 2SA1302/2SC3281 to get 70 WRMS class AB. I'm worried the 25mA might be too low but am not sure. Anyone here able to recommend a good bias current for that pair? Thanks again,
Gary

This post is made possible by the generous support of people like you and our sponsors:

Herbie's Audio Lab

Topic - Need help with 2SA1302/2SC3281 bias setting. - GRH 11:50:22 04/10/16 (1)

RE: Need help with 2SA1302/2SC3281 bias setting. - airtime 16:12:12 04/11/16 (0)

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.