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Another aqusition a Model 20
Radioroslyn
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Posts: 7,301
Threads: 269
Joined: Dec 2009
City: Roslyn Pa
#9

03-01-2011, 11:01 PM
Had a few minutes to play radio. Rebuild the filter bank and did a little cleaning. Wired it all up and she's making music on the bench. I ran out of a couple of the larger bypass caps the .25 @600v so I haven't replaced those yet. I think one of them is leaky 'cause the BC resister gets pretty hot. It also has an odd speaker problem. The output transformer and the voice coil show a low resistance but the speaker doesn't work. Hooked a replacement speaker to the output transformer and it work fine. Voice coil must be shorted. Darn thing plays pretty loud with the 71A's in the output. Bet the model 21 with the 45's is going to be really loud!
Off to find some caps
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
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Messages In This Thread
Another aqusition a Model 20 - by 7estatdef - 02-26-2011, 07:00 PM
Re: Another aqusition - by TA Forbes - 02-27-2011, 01:00 AM
Re: Another aqusition - by 7estatdef - 02-27-2011, 09:31 AM
Re: Another aqusition - by TA Forbes - 02-27-2011, 02:07 PM
Re: Another aqusition - by 7estatdef - 02-27-2011, 03:26 PM
Re: Another aqusition - by 7estatdef - 02-28-2011, 09:15 PM
Re: Another aqusition - by 7estatdef - 02-28-2011, 10:22 PM
Re: Another aqusition - by 7estatdef - 03-01-2011, 09:22 AM
Re: Another aqusition - by 7estatdef - 03-01-2011, 11:01 PM
Re: Another aqusition a Model 20 - by 7estatdef - 03-02-2011, 11:06 PM
Re: Another aqusition a Model 20 - by Ron Ramirez - 03-03-2011, 08:48 AM
Re: Another aqusition a Model 20 - by 7estatdef - 03-17-2011, 05:51 PM
Re: Another aqusition a Model 20 - by codefox1 - 03-18-2011, 10:36 AM
Re: Another aqusition a Model 20 - by 7estatdef - 03-18-2011, 05:44 PM
Re: Another aqusition a Model 20 - by 7estatdef - 03-18-2011, 07:04 PM



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