Modified SX-100

[Larry Roohr]

Joe,

I seem to remember a similar tube substitution and conversion to product
detection for a National 183d an issue of Electric Radio. You could
check one of the ER indexes online for the issue, or I'll see if I can
find it when I get home.

Larry



joe wrote:

>  Under restoration, my SX-100 has had V7 changed to a 6BA7. From preliminary tracing this tube is acting as a product detector and the ANL circuit has been taken over by diodes.  Is anyone familar with a mod or circuit using this circuit?  Someone came up with it somewhere!  Thanks, Joe k7mks
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