Search found 882 matches

by Ron Worley
Fri Jan 18, 2008 8:37 pm
Forum: Trainwreck Discussion
Topic: 47pf Cap in Express PI
Replies: 11
Views: 2328

Re: 47pf Cap in Express PI

NG-

I have the 2008 catalog, that page is shrink tubing.....

Can you spare the P/N of said cap???

Thanks,

Ron
by Ron Worley
Fri Jan 18, 2008 12:22 am
Forum: Trainwreck Discussion
Topic: 47pf Cap in Express PI
Replies: 11
Views: 2328

Re: 47pf Cap in Express PI

Thanks NG..... When you look at the Mouser and Allied catalogs, there are just sooooo many ceramic caps shown...

Anybody have a solid recommendation here from their builds?? Allynmey would know, but he's tied up at NAMM at this point.

Ron (or dude, whatever works)...
by Ron Worley
Fri Jan 18, 2008 12:19 am
Forum: Trainwreck Discussion
Topic: 47pf Cap in Express PI
Replies: 11
Views: 2328

Re: 47pf Cap in Express PI

Which explains why I haven't seen it before.... I have been working on Fenders since I started messing with amps!

Thanks Jay!

Ron
by Ron Worley
Fri Jan 18, 2008 12:10 am
Forum: Trainwreck Discussion
Topic: 47pf Cap in Express PI
Replies: 11
Views: 2328

47pf Cap in Express PI

OK, dumb question time.... I obviously need to study more...

The small blue (Mica??) 47pf cap on the back side of the Phase Inverter:

-What's it's function
-Any ideas on the make / model used in Francesca? Trying to complete a BOM.. which I will share with the board for review if nothing else.

Ron
by Ron Worley
Wed Jan 16, 2008 5:33 pm
Forum: Trainwreck Discussion
Topic: Express Input Jack Grounding
Replies: 6
Views: 1593

Re: Express Input Jack Grounding

Paul-

That is my experience as well that a simple chassis ground is not sufficient or safe as well. I find it odd that KF would have done that.

I am going to add the wire, guess my Wreck won't be as faithful to the original as I first thought!

Ron
by Ron Worley
Mon Jan 14, 2008 7:01 pm
Forum: Technical Discussion
Topic: Amp Cradle
Replies: 22
Views: 5839

Re: Amp Cradle

Tim- Yeah, I thought about some kind of clamping method to allow it to rotate 360... I may still. It is designed to allow it to rotate so long as the chassis is not too deep. I literally slapped it together in a weekend, so I'm sure that it could be improved. It is very sturdy, and it's weight makes...
by Ron Worley
Mon Jan 14, 2008 6:38 pm
Forum: Trainwreck Discussion
Topic: Express Input Jack Grounding
Replies: 6
Views: 1593

Re: Express Input Jack Grounding

Tim- Thanks for the input. Part of what confused me was that this virtual center tap is no annotated on any schematic I've seen- in particular the Kelly 90 with Updates by UR12 (Dana), which is as far as I know the most accurate per the Francesca pictures. I'm trying to work up a 100% accurate BOM p...
by Ron Worley
Mon Jan 14, 2008 1:27 am
Forum: Technical Discussion
Topic: Amp Cradle
Replies: 22
Views: 5839

Re: Amp Cradle

Tom-

The foam on the arms provides enough static friction to hold the chassis, plus the angle / gravity. The Angle adjustment bolt just sets the angle, and holds the entire assembly firmly in place.

There probably are better units out there, but this is my take on it...
by Ron Worley
Sun Jan 13, 2008 11:46 pm
Forum: Technical Discussion
Topic: Amp Cradle
Replies: 22
Views: 5839

Re: Amp Cradle

Here is the unit at a level setting, which is great for playing the chassis out of the cabinet after working on it. I made it out of oak for strength, and ability to take stain. Adhesive backed foam in on the mounting surfaces to protect the wood and give it some vibration dampening. Non skid feet w...
by Ron Worley
Sun Jan 13, 2008 11:41 pm
Forum: Technical Discussion
Topic: Amp Cradle
Replies: 22
Views: 5839

Re: Amp Cradle

Unit adjusts via the bolts / knobs in the middle. Bottom unit has holes drilled along the centerline at uniform spaces to allow macro adjustment. The slot in the middle of the upper unit allows it to slide for fine adjustment. This thing works for everything from a Champ to an AC30....
by Ron Worley
Sun Jan 13, 2008 11:37 pm
Forum: Technical Discussion
Topic: Amp Cradle
Replies: 22
Views: 5839

Amp Cradle

I thought I'd share this design that I built a while back to make chassis work easier. I had been using a POS thing that I built out of 4x4 and large dowels.... not very good at all. I saw the DST Engineering cradle that Weber now sells, but really didn't want to shell out $160 for something that I ...
by Ron Worley
Sun Jan 13, 2008 11:19 pm
Forum: Trainwreck Discussion
Topic: Express Input Jack Grounding
Replies: 6
Views: 1593

Express Input Jack Grounding

New Guy to the board, with perhaps some questions that have been covered before- Pouring through the pictures of Francesca, I noted that the input jack appears to be grounded via the chassis, whereas the rest of the post and preamp board use the copper wire buss soldered to the pot backs. I would se...