[AMRadio] Question: What rigs used the 4-400A ?

[Eddy Swynar]

On 2013-04-02, at 3:09 PM, John Hensley wrote:

> Does anyone have a list of ham radios that used the 4-400A tube?
> 


Hi John,

I do believe that the E.F. Johnson 500 was one that used it...

~73~ de Eddy VE3CUI - VE3XZ