Tube Rolling w/Crack

Dr. Toobz · 1616687

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Offline Jameson

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Reply #2040 on: November 19, 2019, 05:27:31 AM
I paid about $15 per tube, so I don't feel too salty. They were transparent about what they were, I just didn't read too closely. I needed a new 6080 and the price was right ¯\_(ツ)_/¯

Jameson O'Guinn
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Offline Zarno

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Reply #2041 on: November 20, 2019, 12:55:43 AM
Thank you guys for your adequate help!!!

So I did re plug my headset correctly....still scratches when sometimes I touch the plugs!!!!

1)PC to M2Tech USB to Audiomat Tempo 2.5 Dac to Bottle Head Crack with speedball to HD 650
2)Cayin N5 or I5 to HD 580 with Alo balanced Green Cable
3) Cayin N3 to Sony Wh 1000xm3 or Buy Other Sound Equipment Sport earbuds

Offline Zarno

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Reply #2042 on: November 20, 2019, 12:58:18 AM
Tfk "positive" diamond on the 12au7.....

1)PC to M2Tech USB to Audiomat Tempo 2.5 Dac to Bottle Head Crack with speedball to HD 650
2)Cayin N5 or I5 to HD 580 with Alo balanced Green Cable
3) Cayin N3 to Sony Wh 1000xm3 or Buy Other Sound Equipment Sport earbuds

Offline Zarno

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Reply #2043 on: November 20, 2019, 01:00:31 AM
Bottom plaque.........
I need to sort out the cold joints problem!!!!
Any other advice of people using combos with telefunken NOS genuine tubes :D???

1)PC to M2Tech USB to Audiomat Tempo 2.5 Dac to Bottle Head Crack with speedball to HD 650
2)Cayin N5 or I5 to HD 580 with Alo balanced Green Cable
3) Cayin N3 to Sony Wh 1000xm3 or Buy Other Sound Equipment Sport earbuds

Offline Paul Birkeland

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Reply #2044 on: November 20, 2019, 04:19:13 AM
You're also missing some wiring on your headphone jack.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Zarno

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Reply #2045 on: November 20, 2019, 08:14:11 AM
Ok Paul...can you tell me more about what to do??

1)PC to M2Tech USB to Audiomat Tempo 2.5 Dac to Bottle Head Crack with speedball to HD 650
2)Cayin N5 or I5 to HD 580 with Alo balanced Green Cable
3) Cayin N3 to Sony Wh 1000xm3 or Buy Other Sound Equipment Sport earbuds

Offline Paul Birkeland

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Reply #2046 on: November 20, 2019, 08:22:21 AM
Refer to the manual that came with your kit and the section about wiring up the headphone jack.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Jameson

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Reply #2047 on: November 20, 2019, 09:20:09 AM
Page 44 has a section on output wiring. You should have connections on each of the headphone jack's lugs. You might want to create a new thread about it so it doesn't get lost in the shuffle of a long thread about tube rolling.

Jameson O'Guinn
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Offline diynewbie

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Reply #2048 on: November 21, 2019, 01:54:39 AM
Quote from: Zarno on November 20, 2019, 12:55:43 AM
So I did re plug my headset correctly....still scratches when sometimes I touch the plugs!!!!

If you did force the plugs in incorrectly, you may have damaged/spread the socket for the small pin.  I think this could result in a poor connection for the small pin and could give you the scratchy noise.  I would try using the headphones on another device to see if that is the issue. 


Offline Jameson

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Reply #2049 on: November 22, 2019, 05:59:22 AM
On the recommendation of this thread I got a pair of Thomson 6080WAs and that, paired with a Mullard CV4003, is my new favorite pairing for this amp.

Jameson O'Guinn
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Offline Zarno

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Reply #2050 on: November 24, 2019, 12:16:42 AM
thanks to all of you !!!
enjoy your music.....

1)PC to M2Tech USB to Audiomat Tempo 2.5 Dac to Bottle Head Crack with speedball to HD 650
2)Cayin N5 or I5 to HD 580 with Alo balanced Green Cable
3) Cayin N3 to Sony Wh 1000xm3 or Buy Other Sound Equipment Sport earbuds

Offline watonwak

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Reply #2051 on: November 27, 2019, 06:18:24 AM
Can I just double check that it is okay to use an E80CC with a Crack with the Speedball installed? I dont need to make any other modifications?

Beyerdynamic DT 1990 Pros | Crack + Speedball + Alps Blue Velvet + Panasonic PP Output Caps

Offline Paul Birkeland

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Reply #2052 on: November 27, 2019, 11:48:39 AM
There is a value change for R1 on the small PC board up front for the E80CC.  I am remembering that 470 ohms is a good choice for that position.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Tom-s

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Reply #2053 on: November 27, 2019, 07:34:07 PM
Here's the thread about optimizing the current flow with E80CC / 12BH7's in Crack.
U can use the E80CC without this mod, but it does sound better with the mod.
https://forum.bottlehead.com/index.php?topic=5989.0


Offline watonwak

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Reply #2054 on: November 27, 2019, 10:37:29 PM
Any tips for removing the resistors from the board? Just heat up the pins at the pad from the top side and pull out?

Beyerdynamic DT 1990 Pros | Crack + Speedball + Alps Blue Velvet + Panasonic PP Output Caps

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