Search found 2285 matches

by jelle
Tue Mar 26, 2024 12:58 pm
Forum: Garage Talk
Topic: What're you listening to right now??
Replies: 1172
Views: 336122

Re: What're you listening to right now??

WhopperPlate wrote: Thu Nov 16, 2023 11:07 pm
jelle wrote: Tue Apr 30, 2013 11:42 pm Malmsteen in about one hour at Irving Plaza. 8)
How the heck was that ?!
Freaking amazing, lots of notes though. And Marshall stacks, smoke and hair.
by jelle
Tue Mar 26, 2024 12:55 pm
Forum: Dumble Discussion
Topic: Signal resistor type
Replies: 6
Views: 252

Re: Signal resistor type

Hillsborough? You are very very local. Long time no see, last time was at Greg Buchalski's Ampfest. I sent a PM
by jelle
Sat Feb 24, 2024 7:08 pm
Forum: Garage Talk
Topic: Help, is this a Pacific Tranny?
Replies: 2
Views: 153

Re: Help, is this a Pacific Tranny?

Yes, pacific, jelle
by jelle
Thu Feb 01, 2024 6:26 pm
Forum: Garage Talk
Topic: F*cking clients
Replies: 23
Views: 1153

Re: F*cking clients

Me: I should not have let you leave with your amp. This is where you screwed yourself. Learn, move on. We have all learned this lesson..... :oops: In terms of going forward, here is what i suggest; tell him to send the amp back in, if the repair you did actually failed, you will fix it. If its a new...
by jelle
Sun Jan 21, 2024 7:12 pm
Forum: Dumble Discussion
Topic: SSS 002 revisited and lessons learned
Replies: 10
Views: 507

Re: SSS 002 revisited and lessons learned

Alpha is 15% taper, jelle
by jelle
Fri Jan 19, 2024 4:17 pm
Forum: Garage Talk
Topic: New admin. New members!
Replies: 16
Views: 12452

Re: New admin. New members!

Hi, thank you for taking up this task :-)

Are you up to date with letting members in? I got an email today from someone who wants to join but is awaiting approval.

Jelle
by jelle
Fri Jan 12, 2024 9:33 pm
Forum: Dumble Discussion
Topic: NOS NTE metal film resistors
Replies: 19
Views: 9798

Re: NOS NTE metal film resistors

Hi Mike, I have Dralorics, and I messaged you, Jelle
by jelle
Fri Jan 12, 2024 3:04 am
Forum: Dumble Discussion
Topic: Double SSS Preamp (inspired by 004&005)
Replies: 25
Views: 5425

Re: Double SSS Preamp (inspired by 004&005)

Sweet build!
by jelle
Wed Dec 20, 2023 11:29 pm
Forum: Dumble Discussion
Topic: 183(ish) build
Replies: 24
Views: 10111

Re: 183(ish) build

Be careful with this here, the resistor will short once the conformal coating gives out. I would move it away from the nut. jelle
by jelle
Wed Dec 20, 2023 11:26 pm
Forum: Dumble Discussion
Topic: 183(ish) build
Replies: 24
Views: 10111

Re: 183(ish) build

I got a few today and will do tests. They may be the same, jelle
by jelle
Tue Nov 28, 2023 3:14 pm
Forum: Dumble Discussion
Topic: Question on the #124 builds???
Replies: 3
Views: 1429

Re: Question on the #124 builds???

Yea, simply use 20uF caps for each preamp node. My guess was that the dual 10uF cap was available, and Dumble used it. It works, but a single 20uF works and is what one would normally see. Other amps had dual 40uF for clean and OD. Maybe that's what he had available that day. 20uF works well. have f...
by jelle
Mon Nov 27, 2023 5:45 pm
Forum: Dumble Discussion
Topic: ODS #020 for sale on Reverb
Replies: 21
Views: 11918

Re: ODS #020 for sale on Reverb

3 preamp tubes: this means either no: Cleans, OD, PI or loop. Take your pick, lol
by jelle
Fri Nov 17, 2023 12:25 am
Forum: Dumble Discussion
Topic: First D-style (102) build opinions solicited & build thread:
Replies: 305
Views: 138517

Re: First D-style (102) build opinions solicited & build thread:

The 100W ODS documented here (102, 124, and 183) all use 4k7 and 390 from the 4 ohm tap. A 50W adaptation would reduce the 4k7 to 3k3, or move the FB source the to the 8 ohm tap. Either way you will get the same level of NFB as the 100W. The resistor change results from using the calculation I post...
by jelle
Fri Nov 17, 2023 12:24 am
Forum: Dumble Discussion
Topic: First D-style (102) build opinions solicited & build thread:
Replies: 305
Views: 138517

Re: First D-style (102) build opinions solicited & build thread:

So if I’m following this correctly for the sake of understanding the math; the presence cap would go from 2.2uf to 1.5uf? Also, what I’m gathering is that using what I already have - all I’d need to do is run the wire from the 4k7 off the board to the 8ohm tab on the impedance switch rather than th...
by jelle
Thu Nov 16, 2023 9:01 pm
Forum: Dumble Discussion
Topic: First D-style (102) build opinions solicited & build thread:
Replies: 305
Views: 138517

Re: First D-style (102) build opinions solicited & build thread:

The 100W ODS documented here (102, 124, and 183) all use 4k7 and 390 from the 4 ohm tap. A 50W adaptation would reduce the 4k7 to 3k3, or move the FB source the to the 8 ohm tap. Either way you will get the same level of NFB as the 100W. The resistor change results from using the calculation I post...