My Crack in Red/Gray

anson67

New member
This is my Crack that I finally completed tonight.  The base has a couple coats of Rust-Oleum Chinese Red -- I'll probably add another coat -- and the top has Rust-Oleum Gray Hammered.  The transformer bell cover has at least three coats of the red.  I had to add a couple extra coats if hammered gray to "fix" a problem that resulted in much loss of the hammered effect.  Spray paint lesson:  start the spray off the intended surface to avoid an undesirable initial blast!

So far no parts upgrades but I did add a 6.3v pilot light.  I hadn't soldered anything in years but though the result is not as nice as some of the jobs I've seen here my Crack did test within spec at the get-go!  I'm listening to some Mumford & Sons as I type this and boy do I like this Crack so far.

The Speedball upgrade is next in line.  If you are planning to add the Speedball and ordered it with the Crack kit, then I have a few suggestions:

  • This was brought up in the forum before:  Build the Crack without the Speedball first to get an idea how the Crack sounds, and it should be easier to debug problems if the PC boards aren't in the way.  I'm not going to add the Speedball for a while 'til after I get a good handle on the Crack.  I've completed the boards, but they'll just sit around until then.
  • Knowing that the stock output caps have to be bent down to accomodate the larger Speedball board, I soldered them already in a laying down fashion.  This way I avoided any issues trying to bend them down later as there isn't a lot of real estate there.  I actually soldered them angled away from tube socket B for additional clearance.
  • Install all the nylon standoffs either at the start or definitely well before finishing.  By doing this I was able to route in advance wires that might later be difficult to move out of the way, in particular those wires in and around tube socket A.
  • Knowing the plate load resistors are to be removed later, don't overly bend the resistor leads so that they are easier to remove from the terminal strip.
  • I don't know about you but the cathode resistors didn't really want to go between the two terminal strips very easily.  So knowing also that they are to be removed later, I simply soldered the connected end resting on top of terminal 3 rather than through it.  This definitely makes for easy removal later.  The other ends I soldered to 7L and 9L as instructed since that is relatively easy to do and still be easy to remove.
 

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I like it!  I had my doubts from just reading the description, but the actual execution is gorgeous!

Well done!
 
That's a great colour combination. I scuffed up the knob and painted it to match the plate on mine and thought it turned out pretty good.
 
That is a nice build and finishing.  How about a picture of the works?

Your suggestions for upgraders are excellent.  Especially the tips concerning bending the capacitors and installing the standoffs.  There is no reason to not put those as you suggest when making the stock build.
 
Here's a pic of the build.  Not the neatest in the gallery, I admit!

I did opt for the 5/6/10 revision on heater wiring.  The amp is dead quiet with no signal and no noticeable hum with 600 ohm Beyer DT880's until the volume is at 85%, far too loud for an actual audio signal.  I dial to about 60% for listening with the Beyers.  I haven't tried the hum test with my Senn HD600's but they do sound excellent at 30% volume.

 

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LOL!  Your build is very nice and tidy.  Well thought out considering the upcoming upgrades. 

My builds qualify as the ugliest builds in the Gallery but they are dead quiet and good sounding.  Of course I almost built stock first.  The "Almost" is because I had two metal boxes already and fearing noise I built both my Seduction, first kit, and Foreplay 2, second kit, with outboard power supplies.  Even with AC heaters on my FP 2 it was dead quiet when I fired it up. 

My option gives you a lot of room for final stage capacitors and upgrade capacitors that I am a great fan of.
 
Thanks.  I have seen your posts and the cap upgrades are very enticing!  Many thanks to you and others for posting your listening experiences with those upgrades in place.

Regarding the pilot light, while I'm glad I installed it, it sure is bright in a darkened room and overpowers the tube glow.  I may look at options to dampen it a bit.
 
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