Safe to powerup without Speaker?

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Safe to powerup without Speaker?

Steve Davis
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Posts: 1,419
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Joined: Oct 2007
City: Linn Creek, MO

#2

12-25-2014, 06:38 PM

It's not a good idea to power a radio up without a speaker connected. The B+ will go high and possibly damage the filter capacitors. Also, the screen grid in the output tube will draw a large current and get red hot.

Steve

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Messages In This Thread

Safe to powerup without Speaker? - by keith49vj3 - 12-25-2014, 05:00 PM

RE: Safe to powerup without Speaker? - by Steve Davis - 12-25-2014, 06:38 PM

RE: Safe to powerup without Speaker? - by David - 12-25-2014, 09:37 PM

RE: Safe to powerup without Speaker? - by OZ4 - 12-25-2014, 09:56 PM

RE: Safe to powerup without Speaker? - by morzh - 12-25-2014, 10:02 PM

RE: Safe to powerup without Speaker? - by keith49vj3 - 12-26-2014, 12:07 AM

RE: Safe to powerup without Speaker? - by morzh - 12-26-2014, 12:54 AM

RE: Safe to powerup without Speaker? - by joejoe - 12-27-2014, 12:36 AM

RE: Safe to powerup without Speaker? - by thirtiesradio - 12-27-2014, 05:54 AM

RE: Safe to powerup without Speaker? - by keith49vj3 - 12-27-2014, 03:40 PM

RE: Safe to powerup without Speaker? - by morzh - 12-27-2014, 05:14 PM

RE: Safe to powerup without Speaker? - by OZ4 - 12-27-2014, 05:22 PM

RE: Safe to powerup without Speaker? - by Warren - 12-27-2014, 06:11 PM

RE: Safe to powerup without Speaker? - by keith49vj3 - 12-27-2014, 07:04 PM

RE: Safe to powerup without Speaker? - by keith49vj3 - 12-28-2014, 05:00 PM

RE: Safe to powerup without Speaker? - by morzh - 12-28-2014, 05:14 PM

RE: Safe to powerup without Speaker? - by keith49vj3 - 12-28-2014, 05:24 PM

RE: Safe to powerup without Speaker? - by Ron Ramirez - 12-28-2014, 05:37 PM

RE: Safe to powerup without Speaker? - by keith49vj3 - 12-28-2014, 06:16 PM

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