Search found 8 matches

by Ampsterdoom
Thu Jan 15, 2009 8:47 pm
Forum: Dumble Discussion
Topic: sss gut shots or circuit layout
Replies: 2
Views: 970

Re: sss gut shots or circuit layout

I would like to build an SSS. Is there a schematic or any other build info available? Dr. Doom
by Ampsterdoom
Thu Dec 18, 2008 12:16 am
Forum: Garage Talk
Topic: This forum - too much attitude lately.
Replies: 21
Views: 5124

Re: This forum - too much attitude lately.

A short time ago, a newbie asked about the schematic for an amp ... and didn't "introduce himself" properly. He got ripped apart by some of the folks here. It seems he didn't offer the secret handshake or something. Currently, there is a thread in which Dave Funk seems to have stepped on a landmine...
by Ampsterdoom
Fri Oct 31, 2008 2:36 pm
Forum: Technical Discussion
Topic: AC30 build with spare parts
Replies: 15
Views: 4129

Re: AC30 build with spare parts

A big resistor is not the same as a choke. A choke has inductance, which removes AC ripple from the B+ supply. A big resistor is a simple voltage divider (reducer in this case). You need the choke to get the vibe. Even a smaller choke, maybe 5H-10H instead of the 15H would be better than no choke. ...
by Ampsterdoom
Thu Oct 16, 2008 3:50 pm
Forum: Trainwreck Discussion
Topic: R30a & R30b in the Liverpool
Replies: 12
Views: 2217

Re: R30a & R30b in the Liverpool

We are not building "Real" Trainwrecks. What we are building are Trainwreck clones. Gary Thank you Gary, We are a new generation of amp builders with materials and information that Ken Fisher didn't have. In building a Trainwreck amp he could well say the same thing about us. Ken Fishers genius was...
by Ampsterdoom
Fri Jul 11, 2008 8:12 pm
Forum: Trainwreck Discussion
Topic: Did K.F. use Mercury Mag?
Replies: 5
Views: 2163

Re: Did K.F. use Mercury Mag?

Lousyatit wrote:Is there any evidence that Mr.Fischer used Mercury Magnetics trannies in his later builds?
Talk to Patrick at Mercury Magnetics... he has many great Ken Fisher stories.

No doubt KF & MM partnered at various points.

Dr. Doom
by Ampsterdoom
Mon Jun 23, 2008 10:34 pm
Forum: Trainwreck Discussion
Topic: Cathode biased Express?
Replies: 12
Views: 2770

Re: Cathode biased Express?

Does anybody have info on what the right resistor and capacitor values are to use with 6V6 tubes?

Dr. Doom
by Ampsterdoom
Thu Jun 19, 2008 8:57 pm
Forum: Trainwreck Discussion
Topic: Building a Rocket - Layout Check for group build
Replies: 415
Views: 76565

Re: Building a Rocket - Layout Check for group build

A couple questions. Is it possible to mount the VVR pot on the back panel? I got one of Lonely Ravens nice wood front panels with my Rocket parts and I would like to leave the face panel alone. The VVR sounds like a cool idea. If it doesn't change the tone then could you just hard wire in a few spec...
by Ampsterdoom
Tue Jun 17, 2008 1:34 am
Forum: Technical Discussion
Topic: New Guy
Replies: 6
Views: 1644

New Guy

Hello Everybody. A friend told me about this forum and I am here to check it out. It looks like you have a lot of good info. I am an experienced amp builder. I learned from an old guy who was around in the golden days of tubes. I like to build my own designs, but I have learned a lot from fixing Fen...