Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: daveyajd on May 29, 2019, 11:02:14 pm

Title: What are these parts?
Post by: daveyajd on May 29, 2019, 11:02:14 pm

Looking at this Ceriatone layout for their Lightning I see these diodes on the rectifier socket. What should I use for these? Also I haven’t come across any other layouts or schematics that have that 3kv cap, why is it there on this one?


Aaron

Title: Re: What are these parts?
Post by: bmccowan on May 30, 2019, 08:19:30 am

I know there are past discussions of this on the Forum. If you search, I think you will find them. The diodes are added protection against a failed rectifier tube as far as my understanding. I do not install them on my builds, but that does not mean you should not.

Title: Re: What are these parts?
Post by: daveyajd on May 30, 2019, 09:21:31 am

Thank you. I went hunting and turned up this thread:
http://el34world.com/Forum/index.php?topic=13736.0 (http://el34world.com/Forum/index.php?topic=13736.0)


As you said, the diodes are protection and it seems the cap is to eliminate any noise caused by them.


Aaron