[AMRadio] Valliant 1

[russ dworakowski]

Al,  you can  direct replace 866s with  3B28s.  They will handle  surge FB.  
Russ


>From: ATanner283 at aol.com
>Reply-To: amradio at mailman.qth.net
>To: amradio at mailman.qth.net
>CC: johnson at mailman.qth.net
>Subject: [AMRadio] Valliant 1
>Date: Mon, 27 May 2002 13:05:21 EDT
>
>I am currently working on a Valliant 1 I am trying to get on the air. There
>was a discussion (I'm pretty sure it was one of these reflectors) about 
>using
>solid state devices for replacement of the 866 regulators. They are very
>pretty and all that, but really unreliable. I already had one short and had 
>a
>big arc under the chassis before the fuse popped. Please some info on doing
>this. I had a problem also in that the dim past some one recapped this rig
>with higher than print specs caps. Called for 15ufd and they put in 22ufd. 
>I
>believe this makes the pwr supply work harder. They also grounded one end 
>of
>the caps, and grounded the center tap of the HF xfrmr. It appears when you
>measure this leg it IS ground, however the .202 ohm resistance for the 
>plate
>meter is in there. REALLY hard to read. Any how that made the plate and mod
>meter inop. Fixed that up(have to order caps) but now cant get the plate to
>dip on 40 and lower. Also have too much plate current for drive. Have
>replaced finals and neutralized them. This helped too. Any thoughts on the 
>se
>problems??? Thanks....(rig puts out RF by the 
>way...plenty).........Al/W8FAX
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