UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Roberts RT7

Station X · 30th Apr 2009, 7:20 pm

Are we singing from the same hymn sheet? R27 isn't the volume control. R23 is the volume control.

As far as I can see the base bias voltage on TR6 and TR7 is governed solely by R26/27 and any base current drawn by TR6/7.

30th Apr 2009, 7:20 pm	#98
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,288	Re: Roberts RT7 - problem Are we singing from the same hymn sheet? R27 isn't the volume control. R23 is the volume control. As far as I can see the base bias voltage on TR6 and TR7 is governed solely by R26/27 and any base current drawn by TR6/7. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.