[R-390] Lankford 2 diode agc mod problem

[Bob Camp]

Hi

You are dealing with fairly high voltages in the circuit. Depending on 
the diodes you use this may be an issue. It's probably easier to just 
use diodes rated high enough to withstand the transient than to monkey 
with more parts in the radio.

	Take Care

		Bob Camp
		KB8TQ


On Mar 14, 2005, at 4:02 AM, Brad Huff wrote:

> Has anyone experienced failure of one of the ssb diodes used in the 
> Lankford mod when switching between Med and Slow positions of the agc 
> switch? I saw a reference to this on a web site that suggested this 
> possibility and recommended placing either a mov or back to back zener 
> diodes in the circuit. I've never heard of this before, any 
> thoughts?-Brad
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