[Hallicrafters] 12at7

[Edward B Richards]

Jack;

I have not found the 12AT7 more failure prone than other tubes.

73 from Ed Richards K6UUZ
Simi Valley, CA. Home of Air 
Force 1 pavallion

On Mon, 05 Mar 2007 19:51:53 -0500 "Jack Schrader" <w1jhs at verizon.net>
writes:
> 
> Lately I seem to have found a bunch of 12AT7 that test bad or just 
> marginal on my B&K 700 tube tester but I also have many that test 
> ok. I have not tried to switch them in and out of a good operating 
> receiver but 'am wondering if this tube
> is prone to failure or is it maybe the B&K tester or even the 
> operator.
> 
> Would appreciate any thoughts you might have.
> 
> 73   Jack
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