Hi Brent,
Have a look at the switching FET's in that circuit. I don't have my
docs in front of me but I believe they are 2N5638's.
best,
Ike
Brent Punshon wrote:
Hi all,
Just wondering if anyone has seen this before? An extremely raised
broadband hiss noise floor. When stereo solo is engaged the right side
is fine.
The left solo amp is also the mono solo amp so clearly it's related. I
just swapped out all the BJTs and the JFETs in that area along with
the solo bus amp (U4). No change.
Haven't yet prodded around in situ. My back was hoping to avoid that
(but somehow I don't think it's going to). Just thought it might ring
some bells.
Thanks
Brent Punshon
Head Gap
Melbourne, Australia
Ph :+613 9480 6280
www.headgap.com.au
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Ike Zimbel
Zimbel Audio Productions Ltd.
Toronto
416-720-0887
"Studio House Calls" - Repairs and upgrades to analog audio equipment including:
Amek, Allen & Heath, Neve, Neotek, MCI, Soundcraft and more.
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