Last night tested the tubes in my B&K 707 and found slightly weak

V7 6EH5 the AF output but speaker sounds good
V8 6HS6     Premixer
V1  6BZ6 RF Amp

All of these tubes test slightly weak but would this cause a sudden
loss of muting ability?



Message: 1
Date: Tue, 15 Feb 2011 14:02:26 -0500
From: Paul Gerhardt <phgerha...@gmail.com>
To: drakelist@zerobeat.net
Subject: [Drakelist] R4B No Standby or Mute
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My B-line has been working but today that after hooking it back up
(was working on a TR-4) I noticed that the R-4b was not muting or
going into Standby.

In standby or ext mute (w/o short in RCA Mute)audio is distorted
RF Gain only raises S Meter to 20 over or so.

Something seems to have changed since I used it last a few weeks ago.

Could this be a tube failing or ??

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