bypass caps

[2wo]

for 3 bucks, go for it. Satisfy your curiosity, (and ours).
I am talking about the cathode bypass cap here.

If you decide to make changes. Before you put a new cap in, play it with no cap at all. That will give you a sense of what it does and its effect on the sound...John
 

 

[aragorn723]

If i'm looking at the schematic correctly, there are 1k resistors in parallel with the 150uf caps, so this would eliminate the need to add a jumper when running the Quickie without the cap.  Could it damage something by not having the cap? 

Dave

 

[mcandmar]

The voltage is reading 1.5V.  Wish I had changed these before putting in the k75's, would have been much easier  :

Just resurrected my PJCCS quickie and i'm seeing ~1.75v across the caps so it seems comfortably below the 4v rating.  Let us know what you think when you get them fitted..

 

[aragorn723]

Should be interesting.  The blackgates have a big following, some think they are the best caps ever made.  Would changing these make a big difference in sound?  Might have to order a set of these tonight.

Dave

 

[aragorn723]

They were changed to 150uf in the Quickie v1.1.  From memory it only sees 2-3v in normal operation, Partsconnexion list 220uf 4v Blackgate caps for $3 each which i always wanted to try in that position, though somehow i seem to forget about it every time i place an order.

Do they normally take a few days to fill orders?  I place an order with partsconnexion Monday, and got a confirmation..  No word on shipping yet.

Dave

 

[mcandmar]

I have no idea, i'm in Ireland so anywhere i order from takes a month to get here, hence i pay no attention to processing/shipping times

 

[aragorn723]

I guess a few days to fill the order isn't bad for something that is out of production.  Just got an email that they shipped.  For the money, it should be a fun experiment!  How long do these take to break in?

Dave

 

[Grainger49]

Dave,

I agree, PCX has an odd procedure.  They acknowledge your order.  Sometimes ask for verification, then ship a few days later.  But I believe it is a small operation.  I have always gotten good service from them.

 

[aragorn723]

Hi everyone,

Just wanted to say I got the black gates in!  The Quickie improved somewhat without the bypass caps-it opened up the treble/detail, but it sounded grainy.  With the black gates in, the effect was similar, but the sound is very smooth.  There are some moments when the guitars sound reallly goood, can't wait to try that out more.  The details are a lot more defined, and the edges of fine detail sounds really good too.  Overall, it is a very noticable improvement over stock. 

Dave