how is Quickie easy to build?

[4krow]

  I agree, too much 'reigning in' can get in the way of a good time. It can be difficult to stay on topic sometimes when interesting is introduced. Of course there are those things that lead to off topic discussions more than others, like 'What size resistor should I use?" compared to "What do you think about the solid state stuff from the 70's?" One invariably down an old memory lane.

 

[Grainger49]

Follow these instructions and you will have a working first kit:

1) Read the instructions before starting, collect the needed tools (see my sticky post in Tech Tools).

2) Take your time, look closely at each picture, measure the resistance of each resistor before installing it.

3) First make a good crimped connection then solder.

4) Don't build it at night, do it during the day on the weekend.  Be refreshed.

Enjoy the music!

 

[adamct]

4) Don't build it at night, do it during the day on the weekend.

Spoken like someone who either (a) doesn't have children, or (b) has grown children!  ;D 

 

[4krow]

  Grainger,
  All of your advise applies, but I say that #3, crimping a good connection is one I try to follow in everything I do electrically. It ALWAYS takes me longer than others for my projects.

 

[Grainger49]

Adam,

It is (a).

Greg,

I got to be pretty efficient at Habitat (house electrician) crimping my #12 wires around the screws before tightening them down.  They were not coming off unless someone used needle nosed pliers like I did attaching the wires.

 

[4krow]

heh heh, yah, sometimes I cuss myself when I have re-enter an electrical job that I've done. I do the same thing, and I learned that with outlets, you tighten twice, once making the connection, and again just before it goes into it's hole.

 

[adamct]

Greg, your "SELF PORTRAIT" is freaking me out...


Adam

 

[4krow]

  Look outside your window, in the bushes. No, not there, that's OJ, a little to the right.

 

[adamct]

That made me laugh...

 

[charger]

today my Q will be here and i will begin to work on it !!

 

[charger]

it's here !! with pearl white top, beautyful !!!

 

[earwaxxer]

Bon chance!

 

[charger]

it works !!!!  but there is a little bit hum  what depends about? 

 

[Grainger49]

Hum is often caused by poor filtering of the AC in the power supply.  In the case of the Quickie that is impossible.  The power supply has nothing to do with AC.

So it is more likely either induced hum or ground loop/grounding hum.  Induced means it sits too close to something radiating a strong AC field.  This is easy to check, move it 2 feet from any other piece of equipment.  If you can't hear the hum being reduced as you move the Quickie it is not induced hum.

This leaves a bad interconnect or loose grounding wire on the ground reference wiring in the Quickie.  Start at the two RCA input jacks.  Touch up the ground wires there, the outer connection, not the center one.  Follow those wires and touch up all the solder joints that are "grounded."  Of course they are not grounded in the Quickie, it doesn't have a power cord that brings in the ground.  The ground is in the other components.

 

[Bonzo]

Quickie isn't shelded, so you have to pay some attention with grounding issues (only one item in the audio chain grounded usuallt solves the problem) and with EMF (try put the Quickie away from other PSU/wallwart).
I follow these steps and solved my hum problems.

PS: Post some pics of your beauty if you can!

Ciao!

 

[charger]

i solved, I resoldered all negatives joints now no hum!!  I will post picture as well my next will be replace 2,2 mf capacitors

 

[charger]

What an amazing sound !!! natural , wide, clear with deep bass and i suppose changing valves it can be even better

 

[Grainger49]

I guess this answers the question of how easy the Quickie is to build.

It is a simple, yet elegant circuit.  A great starting place for a new hobby.

 

[Bonzo]

What an amazing sound !!! natural , wide, clear with deep bass and i suppose changing valves it can be even better

I tried mixing PIO and teflon caps as bypass...really improved overall definition and bass... But first listen to it for 50 hours or so, letting everything settle down and be familiar with the sound.
After cap and tube rollings... choke or pjccs? 

Ciao!

 

[charger]

i don't know what is choke