[Johnson] Invader 2000

Roy Morgan [email protected]
Mon, 26 Apr 2004 11:43:40 -0400


At 09:39 AM 4/26/2004 -0400, George Shapow wrote:
>Hi all,
>
>I have an Invader 2000 in need of finals.  It uses PL-175As but I've been
>told that 4-400s are direct substitutes.  Is that true?

George,

It may not be true. (Unless you put in a different socket, or change 
operating conditions, perhaps.)

This link shows no preferred or normal substitutes:
<http://www.nj7p.org/cgi-bin/tube?tube=PL-175A>

The PL-175A has EIA Base F86

The 4-400 has  EIA Base 5BK  (I cannot tell you the difference.)

Roy





>George Also, Does anyone
>know where I can get them at a reasonable price?
>
>Thanks
>
>George, NY2O
>
>
>_______________________________________________
>Johnson mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/johnson

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
7130 Panorama Drive, Derwood MD 20855
Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax: 301-948-6213
[email protected] --