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Crack;Bottlehead OTL - Page 169

post #2521 of 6029

Maxxximum CAPacity Crack --- a cautionary tale.

 

 

 

[Note: the Mullard 12AU7 flashes. tongue.gif]

post #2522 of 6029
Quote:
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.

 

 

 

[Note: the Mullard 12AU7 flashes. tongue.gif]

 

Great bedtime story, amcananey!!

 

You've got me thinking about upgrading the power supply caps now... The Icar caps are what you used to replace the power supply electrolytics, yes?

post #2523 of 6029

There are three 220uf 250V electrolytics in the power supply. The first two stick up straight. The last one is on the far left when looking at the underside of the Crack and sticks out horizontally. I used two Icar caps to replace the first two electrolytics, and I used two of the TEMCo oil-filled caps wired in parallel (to get a total of 200uf capacitance) for the last electrolytic. Of course, there is no reason you couldn't use 3 of the Icar caps, or 6 of the TEMCo caps, if you were so inclined.

 

Best regards,

Adam

post #2524 of 6029
Quote:
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.

 

 

 

[Note: the Mullard 12AU7 flashes. tongue.gif]

You have created a monster.  The caps are bigger than the amp....I bet it sounds amazing but OH GOODNESS evil_smiley.gif

post #2525 of 6029
It sounds incredible. biggrin.gif

Vote on its looks here.
post #2526 of 6029
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.

 

Good lord, man.. that thing is frightening (to look at.. but probably sounds amazing).  Only thing left for it to do is creep into your bedroom in the middle of the night and choke you with its cold, dead hands butt cheeks.

 

BTW.. my Tesla ECC802S flashes on start-up, too.

post #2527 of 6029
Quote:
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.

 

 

 

[Note: the Mullard 12AU7 flashes. tongue.gif]

 



It is...huge blink.gif

 

I bet this is gonna take you to heaven when you listen to it biggrin.gif

 

Fantastic work, Adam!

 

Enjoy your 'lovely' Crack! tongue.gif

Kratos.

post #2528 of 6029
Quote:
Originally Posted by palmfish View Post


OK, I need to find one of these. i dont care what they sound like, I just want a tube that flashes!

Amperex, Mullard's, pretty much any non low class British tube will flash. Though not all. All Mullard dual triode's (12xxx family) with a CV code in front will flash on powerup. 

 

Quote:
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.

 

 

 

[Note: the Mullard 12AU7 flashes. tongue.gif]

WTF? LOL! Hardcore. You Sir have taken the extreme to the extreme.

post #2529 of 6029
post #2530 of 6029
Quote:
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.

 

 

As much as I am a fan of DIY as a chance to go a bit nutty, thus goes well beyond even the remotest common sense. Exposed HV terminals is *such* a terrible idea.

post #2531 of 6029
Yeah, I'm going to cover those with shrink tubing. Didn't plan on leaving those that way long-term.
post #2532 of 6029

I've become disenchanted with my Little Dot MKIV/SE .... it's also an OTL amp .....

 

Has anyone had an opportunity to compare the MkIV with the  Bottlehead Crack with Speedball?  Do these OTL amps go head to head?

 

Please forgive me if this has already been discussed within this thread.  My search didn't find any mention of the LD MKIV.

post #2533 of 6029

Lol nice avatar with those big blue butt cheeks Adam! tongue.gif

post #2534 of 6029
Quote:
Originally Posted by amcananey View Post

Maxxximum CAPacity Crack --- a cautionary tale.



[Note: the Mullard 12AU7 flashes. tongue.gif
]

I love it!
post #2535 of 6029
Quote:
Originally Posted by gikigill View Post

Not the SEX thread but wanted to ask if this attenuator would be suitable for the SEX,

 

http://www.ebay.com.au/itm/VALAB-23-Step-Attenuator-Potentiometer-10K-Stereo-Log-/300537542974?pt=AU_Electronics_Audio_Amplifiers&hash=item45f96ef93e
 

No you need a 100k one but the same seller on ebay has one that is 100k as well so yes that will work very well.  Also another upgrade would be a alps blue pot.  

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