Re: LF: Class D current spikes

[N1BUG <paul@n1bug.com>]

Eric,

I I have always run my U3S through the W1VD doubler. Never had any
problems with blown FETs with that setup, even when I tested at 1 kW
under Part 5 license. There is apparently something different about
the U3S at end of RF envelope.

73,
Paul


On 2/26/19 12:52 PM, Chris Wilson wrote:
> 
> 
> Hello Eric,
> 
> No,  I have always run the U3S in X2 mode as far as I can remember. No
> doubler,  no squarer, just straight out of CLK0 to Pin 3 of the 74F74.
> And  no  issues  at all. Thanks. BTW, I really admire your old gear on
> your web site, awesome build standards and so nice to look at!
> 
> Tuesday, February 26, 2019, 5:35:10 PM, you wrote:
> 
>> Just to clarify... did you say previously that the U3S also worked fine
>> running at 1x and feeding a doubler, squarer, etc. also?