[ARC5] [BoatAnchors] TCS: Better Speaker "Ear Popping" Cure.

[don davis]

With no blocking diodes (power diodes), the zeners in parallel will look like normal pn diodes across the load.  I think Dave is trying to clip at some higher voltage th .7 volts?

73 de don ad6pb

-----Original Message-----
From: BoatAnchors [mailto:boatanchors-bounces at theporch.com] On Behalf Of Arden Allen via BoatAnchors
Sent: Thursday, February 11, 2016 9:44 AM
To: David Stinson <arc5 at ix.netcom.com>; Old Tube Radios (new) <boatanchors at minime.theporch.com>
Subject: Re: [BoatAnchors] TCS: Better Speaker "Ear Popping" Cure.

> ............The power diodes steer the current so the zeners work.
The clipping level should now be Vzn plus the power diode Vfb drop, though I haven't scoped it yet.  ..........

David, you don't need the power diodes, just connect the zeners back to back.  The zeners are normal diodes when conducting in forward direction. 
Zeners in series will soften the clipping knee.  You could also try connecting an incandescent bulb in series to soften the zener knee instead. 
Or a combination.

Arden Allen
KB6NAX