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Top hat diode orientation

Posted: Tue Apr 29, 2008 12:19 am
by gtomax
Just to double check, on the metal case top hat diode, the negative side points towards the bias resistor, not the tubes right? I.E. the flat disc part towards the tubes, round hat part towards the resistor?

In the case of the image below, the resistor would be to the left and the lead on the right would go to the bias caps?

Image

Posted: Tue Apr 29, 2008 9:27 am
by Ricky Lee
The Hat goes toward the tube side, round to the bias resistor.

Re: Top hat diode orientation

Posted: Tue Apr 29, 2008 11:42 am
by Billy Batz
gtomax wrote:In the case of the image below, the resistor would be to the left and the lead on the right would go to the bias caps?
Right.

Posted: Tue Apr 29, 2008 11:46 am
by gtomax
Thanks guys. Can't be too careful. POP!

Posted: Wed Apr 30, 2008 6:57 am
by neikeel
Yes these diodes are the OPPOSITE orientation to the original Mullard diodes - sensible to check 8)

Posted: Wed May 07, 2008 11:12 pm
by Joe Popp
Yes watch out! The newer ones are backwards of the old ones. They are clearly marked. Here's mine installed in my 2204:


Image

Posted: Mon May 12, 2008 8:50 pm
by timsmcm
nice looking rikens joe popp

Posted: Mon May 19, 2008 9:12 am
by Joe Popp
Thanks Timsmcm! They cost WAY too much...

Posted: Tue May 20, 2008 12:27 am
by timsmcm
joe what do they sound like

Posted: Wed May 21, 2008 2:08 pm
by Joe Popp
It's hard to say because all of my builds are so different. I will say that every time I play live, somebody says they love the sound of my amp and they want me to build them one! I am not sure if you can get all of the Riken values needed for a complete build anymore.

Posted: Sat May 24, 2008 6:21 am
by joshwilson3
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Posted: Mon May 26, 2008 11:16 pm
by gtomax
Diodes are diodes, really. Some will disagree but it'd be hard to tell the difference. Put in what you think looks coolest.

Posted: Tue May 27, 2008 2:11 am
by joshwilson3
...

Re: Top hat diode orientation

Posted: Tue Jan 25, 2011 10:23 am
by flicker
Who can tell me where I can find this kind of top hat diode?