Search found 77 matches

by zimm
Wed Mar 14, 2018 11:19 pm
Forum: Technical Discussion
Topic: Low volume issue
Replies: 5
Views: 622

Re: Low volume issue

Pre amp is fine running through other amp. Problem is in the power stage. I'll recheck my connections. And test some more. Thanks for helping me narrow it down.
by zimm
Wed Mar 14, 2018 3:17 am
Forum: Technical Discussion
Topic: Low volume issue
Replies: 5
Views: 622

Re: Low volume issue

I have another working build, could I hook the "pre amp out " from that to the power amp input of my defunct amp for testing purposes?

I don't have a scope anymore, but I agree this might be best diagnosed with one. I'll double check my connections too. Thanks
by zimm
Wed Mar 14, 2018 1:04 am
Forum: Technical Discussion
Topic: Low volume issue
Replies: 5
Views: 622

Low volume issue

I'm having a strange issue with low volume in a 183 d style build and was hoping someone might have some insight. Basically all my controls work as they should but the volume level at Max volume is low, like 2-3 in loudness. Channels switch, and the issue is the same wether in clean or drive. Tried ...
by zimm
Tue Jan 06, 2015 9:40 pm
Forum: Dumble Discussion
Topic: Starting point for new build
Replies: 29
Views: 5549

Re: Starting point for new build

I made a 183 clone using high voltage music man transformers and think the HB's sound the best but I have been also liking playing my SC tele through it. Wasnt #124 voiced for single coils?
by zimm
Thu Mar 08, 2012 6:20 pm
Forum: Dumble Discussion
Topic: 102 Feedback City
Replies: 264
Views: 44373

Re: 102 Feedback City

Something particular with the OT specs?
by zimm
Fri Oct 14, 2011 1:24 pm
Forum: Dumble Discussion
Topic: Building the Dumble Amp?
Replies: 25
Views: 3180

Re: Building the Dumble Amp?

You should try searching, there is a thread where some of the more notable builders describe their build sequence, I think funkalicious groove, henry, and glassman, among others, are in that thread.
by zimm
Sun Jun 19, 2011 11:32 pm
Forum: Dumble Discussion
Topic: Scott Lerner in the Hospital
Replies: 80
Views: 15123

Re: Scott Lerner in the Hospital

Best wishes for a speedy recovery!
by zimm
Fri Mar 18, 2011 4:20 pm
Forum: Dumble Discussion
Topic: Quinn 183 Preamp
Replies: 13
Views: 3264

Re: Quinn 183 Preamp

Sounds great, seems like you have a great set up!
by zimm
Fri Aug 20, 2010 5:32 pm
Forum: Dumble Discussion
Topic: How the Dumble is an instrument and not just an amp
Replies: 31
Views: 5123

Re: How the Dumble is an instrument and not just an amp

Sounds great, seriously should put something down on an album. Thanks for the inspiring tones!
by zimm
Thu Jul 22, 2010 1:35 pm
Forum: Dumble Discussion
Topic: 100w ods
Replies: 19
Views: 3126

Re: 100w ods

http://www.aikenamps.com/

click

Tech info>Advanced(Aiken)>"Where to connect the outside foil on capacitors"
by zimm
Wed Jul 21, 2010 12:19 pm
Forum: Dumble Discussion
Topic: 100w ods
Replies: 19
Views: 3126

Re: 100w ods

They are marked to show the polarity of the cap, although some are marked on two sides because I measured the caps once with a meter/foil and marked them, then read a blurb on the Aiken site about using a scope so I tried that and some of the results were different so I wound up marking them again. ...
by zimm
Tue Jul 20, 2010 9:08 pm
Forum: Dumble Discussion
Topic: 100w ods
Replies: 19
Views: 3126

Re: 100w ods

Thanks Tom, my set up is like the "bottom Left diagram", except I have paralleled two caps before putting them in series.
by zimm
Tue Jul 20, 2010 8:24 pm
Forum: Dumble Discussion
Topic: 100w ods
Replies: 19
Views: 3126

Re: 100w ods

"I didn't mean that to sound condescending" Tony, not interpreted as condescending at all, we're cool, thank you for that explanation , makes sense. Grtamp, I have a standard filter set up, I have two 100uf caps UNDER (on the opposite side of the filter board) the two in the picture. So I have two p...
by zimm
Tue Jul 20, 2010 6:28 pm
Forum: Dumble Discussion
Topic: 100w ods
Replies: 19
Views: 3126

Re: 100w ods

470ohms, yes, sorry. I do not wish to accomplish anything in particular, just have it sound the best that it can and be "right". There are some that say there is no audible difference between 1K and 470, and others who say there certainly is. In the end Ill have to try for myself because In the end ...
by zimm
Tue Jul 20, 2010 5:26 pm
Forum: Dumble Discussion
Topic: 100w ods
Replies: 19
Views: 3126

Re: 100w ods

Thanks! Good eye, that is Ampeg cloth I had laying around from an older project. The zener schemo is in this thread: http://ampgarage.com/forum/viewtopic.php?t=2818&start=0 I wasnt sure where I should put them, but I wound up placing them on the rectifier board, and copying the MM schemo for the res...