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Dark Voice 339 - Page 61

post #901 of 2364

You, sir, are on a roll :)
 

post #902 of 2364

X2!!!!

Could you post a picture of the rewiring scheme. Was this hard, could someone with modest soldering skills be able to do this?

post #903 of 2364

And what did you do the the volume pots, I missed that one!

post #904 of 2364

Yeah I thought they looked huge, but maybe it's optics

post #905 of 2364

Its aftermarket knob, just choose whatever you like it is standard size knobs! They are cheap, I may even put gold plated knobs if the moods strikes in!

 

Yes wiring easy if you solder with supple wire, but with hardwire it is very time consuming! I did it with solid copper gold plated and it was a real bitch because using standard plier would marr  the gold plating, I resort this problem by putting heatshrink tubing over my plier!

I am almost over with the mods, I just wait for the caddock resistor to arrive with yellow heatsink!

 

And all the wire will be change to gold plated copper.

 

The Seta resistors (green ones) weren't non inductive so I went all out and choose the caddock to replace them. I will post picks of the wiring of course, but for now some listenning pleasure with Zakir Hussain, John McLaughlin and some Mahler!

 

I am testing carbon comp bradleys resistors in the grid position to test, but I will change them to standard metal film later if the sound is too noisy.

 

Here are shots I use are reference to the mods:


NB: heater filaments are the same 2-7pin.

6SJ7 pinout

6sj7_so.png

_DSC2323.jpg

Here pin 1-7-8 are connected to ground. Cathode resistor is pin 5. Imput signal pin 4.

 

 

6C5 pinouts

oc78_g_2.gif

d5e00472_2099.jpg

Here only pin 1-2 are connected to ground. Cathode resistor is pin 8. Imput signal pin 5.

 

The grounding is different and that forbid the use of a simple adapter to use both tubes... I was thinking about doing an array of switch but the grid resistor must have very short lead so I cannot do that either!


Edited by telecaster - 6/21/12 at 3:51am
post #906 of 2364
Quote:
Originally Posted by Ultrainferno View Post

You, sir, are on a roll :)
 


Thanks m8!

post #907 of 2364
Quote:
Originally Posted by sluker View Post

Yeah I thought they looked huge, but maybe it's optics


They are 30mm diameter almost like stock, I use a wide angle lens!

_DSC2419.jpg


Edited by telecaster - 6/20/12 at 2:38pm
post #908 of 2364

Hi,All what has happened to http://yuking09.com/ web site does not seem to be there any more?

post #909 of 2364
Quote:
Originally Posted by redcat2 View Post

Hi,All what has happened to http://yuking09.com/ web site does not seem to be there any more?

 

Hmm, will check with Keph!

post #910 of 2364

Website was up... 5 days ago or so.  I was going through this thread and browsing the site.

post #911 of 2364
Quote:
Originally Posted by brainbucket View Post

Website was up... 5 days ago or so.  I was going through this thread and browsing the site.

 

You killed it!! ;)

post #912 of 2364
Quote:
Originally Posted by Ultrainferno View Post

 

You killed it!! ;)

I hope not haha, beautiful amps like his should not go unnoticed

post #913 of 2364

Site is back up!
 

post #914 of 2364

Yes it is, good!!

post #915 of 2364
Does anyone have both the 339 and Bottlehead Crack w/ Speedball upgrade for a comparative mini-review (especially in regards to Senn HD650 and Audeze LCD-2.

Tx,
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