Search found 907 matches

by gearhead
Wed Feb 12, 2014 3:59 pm
Forum: Technical Discussion
Topic: learning about tube amps
Replies: 7
Views: 1865

Re: Reading Material on Steroids

Read this thread: http://ampgarage.com/forum/viewtopic.php?t=9023 Lots of great recommendations. Start with simple schematics like the tweed champ, read, use the search function here, ask questions, build something! Gosh, I remember that thread now. If you want to understand how tubes work, highly ...
by gearhead
Wed Aug 01, 2012 9:41 pm
Forum: Trainwreck Discussion
Topic: Stato17 to the white courtesy phone please . . .
Replies: 0
Views: 1467

Stato17 to the white courtesy phone please . . .

Heh Strato, PM sent.

Thanks!
by gearhead
Fri Jun 08, 2012 10:42 pm
Forum: Trainwreck Discussion
Topic: Before I buy alnicos
Replies: 25
Views: 7095

Re: Before I buy alnicos

Fave setup for my Express is a 4x12 loaded with Eminence Governors. Go figure.
by gearhead
Fri Jun 08, 2012 10:38 pm
Forum: Trainwreck Discussion
Topic: This clip rocks!
Replies: 36
Views: 10130

Re: This clip rocks!

I apologize for deleting the files... Someone sent me a message on youtube, supposedly from the Fisher family, threatening legal action for calling my amps "trainwreck clones" and demanded that I remove them. Rather then trying to see if it was legitimate, I just deleted them. Has anyone else had e...
by gearhead
Sat May 19, 2012 12:34 am
Forum: Trainwreck Discussion
Topic: Mil Spec PEC pots?
Replies: 32
Views: 15229

Re: Mil Spec PEC pots?

look at the pec website. the coding is actually pretty simple now... Link in my post from 3 years ago in this thread is kaput, so here's the new PEC one: http://www.precisionelectronics.com/0-40a-010c.html It's actually a milspec numbering system mandated by DoD. HIGHLY recommend TDSS for the PECs....
by gearhead
Fri Apr 06, 2012 10:23 pm
Forum: Technical Discussion
Topic: 2Watt Sub Miniature Plexi
Replies: 245
Views: 60505

Re: 2Watt Sub Miniature Plexi

I'd like a production plexi when available. Too much on my plate to do a good test build.
by gearhead
Tue Feb 07, 2012 11:38 pm
Forum: Technical Discussion
Topic: Dabeck amps
Replies: 5
Views: 2330

Re: Dabeck amps

Dave Smith = Dabeck amps (wifes name is Becky). He worked for a number of companies (Motorola, etc) as electronics engineer/tech; can fix about anything. Dave is an outstanding guy; really nice to deal with. I've got a Dabeck amp. Sounds GREAT. It's probaby the one pictured above. Amazing build; two...
by gearhead
Fri Jan 13, 2012 6:42 pm
Forum: Trainwreck Discussion
Topic: That 1K-25 watt resistor...
Replies: 6
Views: 2314

Re: That 1K-25 watt resistor...

Discussion about that 1k 25w resistor has been around the track quite a few times.

http://ampgarage.com/forum/viewtopic.php?t=2379

10 watters appear to get too hot. AC transients (when actually played) outstrip the steady-state DC rating.
by gearhead
Fri Jan 06, 2012 6:51 pm
Forum: Technical Discussion
Topic: Calculations and the bias supply circuit
Replies: 9
Views: 3212

Re: Calculations and the bias supply circuit

Yeah, I was in basic stages of EE program 30 years ago myself. Spent the first quarter on semiconductor calculations out to the third digit ( .XXX). No credit if not exact. When we finally hit the labs the next quarter, I was pretty furious. Variance in manufacturing gets you +/- a lot. Crickee.
by gearhead
Thu Jan 05, 2012 5:03 pm
Forum: Trainwreck Discussion
Topic: Express vs. Concorde
Replies: 14
Views: 8219

Re: Express vs. Concorde

The Concorde is a lot louder and the distortion is more "modern" sounding I guess you'd call it. The Express has that high mid peak in the tone that sort of dominates it's sound. The concorde not so much. I love the concorde but find the express less demanding and a bit easier to play and work with...
by gearhead
Thu Jan 05, 2012 4:59 pm
Forum: Trainwreck Discussion
Topic: Express vs. Concorde
Replies: 14
Views: 8219

Re: Express vs. Concorde

His parts website is ampbuildersparts.com

http://ampbuildersparts.com/store/index ... contact_us
by gearhead
Tue Jan 03, 2012 3:55 pm
Forum: Trainwreck Discussion
Topic: New Build - Z Wreck Style
Replies: 85
Views: 39066

Re: New Build - Z Wreck Style

Hi steve, the labeling is silk screened on the chassis. I had the sheet metal chassis fabricated, and they also did the textured black powder and the silk screening. If you have any other questions, please let me know. Steve Where'd you get the chassis done? Approx cost, if you don't mind sharing.
by gearhead
Tue Dec 06, 2011 4:50 pm
Forum: Technical Discussion
Topic: Preamp Current Draw
Replies: 9
Views: 2230

Re: Preamp Current Draw

Just to be esoteric, signal inversion is a function of the specific circuit hooked up to a preamp tube, and not the tube itself.
by gearhead
Fri Dec 02, 2011 4:00 pm
Forum: Trainwreck Discussion
Topic: Wreck update
Replies: 9
Views: 2770

Re: Wreck update

So, metal film? Interesting.

BTW, what wood is that? Gorgeous!
by gearhead
Fri Nov 04, 2011 10:54 pm
Forum: Technical Discussion
Topic: 2Watt Sub Miniature Plexi
Replies: 245
Views: 60505

Re: 2Watt Sub Miniature Plexi

Yahoo!