audio-talk

Posted: **Mon Jul 26, 2021 10:59 pm**

RhythMick wrote: ↑Mon Jul 26, 2021 9:32 pm Ok I see ... But there wasn't a blocking cap in the test circuit, either before or after the D3a.

How do you think the AC/DC input switch on the scope is done? I assumed you weren’t putting 150v or so into the scope input with it set to DC.

Posted: **Tue Jul 27, 2021 7:27 pm**

Nick wrote: ↑Mon Jul 26, 2021 10:59 pm
RhythMick wrote: ↑Mon Jul 26, 2021 9:32 pm Ok I see ... But there wasn't a blocking cap in the test circuit, either before or after the D3a.
How do you think the AC/DC input switch on the scope is done? I assumed you weren’t putting 150v or so into the scope input with it set to DC.

Doh

Posted: **Wed Jul 28, 2021 9:29 pm**

Sure I've been caught out by similar in the past.

audio-talk

D3a Triode Square Wave shows HF boost

#16 Re: D3a Triode Square Wave shows HF boost

#17 Re: D3a Triode Square Wave shows HF boost

#18 Re: D3a Triode Square Wave shows HF boost