gzook at yahoo.com
Fri Jul 6 16:57:44 EDT 2018
Such is usually a sign of a bad electrolytic in the audio output stage. Replace C-304 (20 mfd) with a 22 mfd capacitor. That capacitor is from Pin-3 of V-14B (6GW8) to ground.
From: RAY FRIESS <rayfrijr at msn.com>
To: boatanchors <boatanchors at mailman.qth.net>; "boatanchors at puck.nether.net" <boatanchors at puck.nether.net>
Sent: Friday, July 6, 2018 1:23 PM
Subject: [Boatanchors] Squeal
Heath SB101. When I turn audio gain up over one quarter of range, radio takes off into a loud squeal. RF gain or mode settings make no difference. Suggestions? Bad PCB ground maybe?
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