[ARC5] BC-221 and LM Solid State Conversion

[Roy Morgan]

On Sep 30, 2009, at 2:21 PM, J. Forster wrote:

> Are these conversions essentially building a FET transistor  
> equivalent for
> the tubes into old tube bases, with no soldering mods required?

YEs, as I remember that article, you break the original tubes  
(NOOOOO!!!) and put FET's into the bases.. then give the set  
appropriate ECC voltage.  You may short around the dropping resistor  
that feeds the neon lamp regulator.

Roy

PS: Robert, I'd love to get a scan of that article.  I am pretty sure  
I have it on paper only deep in some file.
Thanks.


Roy Morgan
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