[BUILD] The Rude Tube IVORY ====== Official build & support thread

[dirty1_1garry]

Hello!

Have a stereo set of Ivory.
Is it possible to find .fpd face design example?

 

[bernbrue]

There are  fpd files on the first page.
Bernd

 

[kambo]

anyone using orange caps ?

 

[kambo]

before i order:  how about sowter 3575

edit : sowter 8940 is very nice trx too...

 

[bernbrue]

Go for it!
Bernd

 

[dmp]

I just got a pair of boards - they look great!
I was looking to order pots...
Why did you spec a linear 50k for the output control? I think an audio taper would give better control.
And could it be a larger value? I'm looking for dual pots to make a stereo unit with one set of controls, and it would be easier to get a 100k.

 

[bernbrue]

Hi,
There is no reason, why a 100k pot shouldn't work.  The range of volume control might be smaller.
Bernd

 

[kambo]

Lundahl US is pretty damn fast. so i went with LL5402's... just finished,
already sounding awesome  8)
thanks again 
oh, i wired the pots wrong way round  8) ... but i am gonna leave it like that for now...

ps: STA gonna be Sowter's tho for sure.

 

[kambo]

oh boy, i am switching to double pots, and add trimmer pot for stereo balance...
fun to twist, but so  many pots on stereo CH.

i think i will fiddle with hi/lo ratio.. and gain pot... gain pot  could do wider range !?

cant wait to take it to work  ;D

 

[chris77]

Hi,

Quick question regarding the stepped lorlins and the resistor placement...in the bom step 1 isn't populated?

 

[kambo]

i am using pots...

knobs arrived, stock unit working nice
i added switchable 1uf to C1M. rolls of fizzy_ness nicely, when needed.
added 2k7 to output LL5402 too.

 

[bernbrue]

Good work, enjoy your weekend in Berlin.
Bernd

 

[zayance]

Hi,

Quick question regarding the stepped lorlins and the resistor placement...in the bom step 1 isn't populated?

If you look at the Lorlins Sheet, there are 11 resistor values, and on the PCB there is 11 Resistors.
You can't go wrong

https://docs.google.com/spreadsheets/d/1pTRApcKet2ZYTQa3BgFNJeYawWr7BqK_kzjqoicdIlg/edit?usp=sharing


Best,


T.

 

[chris77]

Thanks .......was suffering brain fog  ,here's a pic of my build so far ,have the tubetown tt-t56 toroidal and a case on the way


chris

 

[bernbrue]

Looks very good. I suppose you will go for 6,3V unregulated. That's fine, but nevertheless you'll need heatsinks for B+ and for additional  voltage.  R3 on psu doesn't look like a 3 watt resistor. For HT trim you could solder in a 470 R resistor instead of the the 1k trimmer.
Bernd

 

[chris77]

Yeah just waiting on the to-220 insulators before soldering in the heatsinks ,will use the toroidal secondary for heater,  for R3 the marking suggest 3.75w dale 470r,Mouser part no 71-CW2B-470 .


chris

 

[bernbrue]

Just looked so tiny. So you've got it right. Go ahead!
Bernd

 

[chris77]

Hi,


Almost finished , tried using 6.3 unregulated for heaters there was some  50hz hum ,so decided to use the PSU ,sounds great now  8)

 

[rmaier]

It´s in fact the slightly modified preamp stage & EQ of the Fender Blackface Champ. You can add a 6V6 tube and transformer and you´ve got a nice little guitar amp.
regards
Bernd

How exactly would one go about doing this, and has anyone here tried it yet?

Ralph

 

[bernbrue]

Here you go:

http://jalbum.com/files/attach/images/3153/237/007/df8dd855eadea74cd5ae3cb25b81009e.gif

Bernd