Search found 261 matches

by Mr. dB
Wed Jan 31, 2024 2:56 am
Forum: Dumble Discussion
Topic: NOS NTE metal film resistors
Replies: 19
Views: 9778

Re: NOS NTE metal film resistors

Isn't NTE the "artist formerly known as Philips ECG"? And before that, Sylvania ECG?

Even in the '70s the Sylvania flame proof resistors came from multiple suppliers. We used to look for the CGW (Corning Glass Works) ones.
by Mr. dB
Mon Jan 29, 2024 12:32 am
Forum: Dumble Discussion
Topic: Where best to post about diff between Fender and Dumble?
Replies: 83
Views: 2597

Re: Where best to post about diff between Fender and Dumble?

Listening is a developed skill . Some people are operating at a different level. For example, watch Eric Johnson spend an hour biasing his Marshall, playing the same lick over and over whilst making minute turns on a trimpot, he's hearing something in the sustain, touch and texture that us mere mor...
by Mr. dB
Tue Nov 28, 2023 4:29 am
Forum: Dumble Discussion
Topic: Revisit #0183 with 5-piece chassis
Replies: 42
Views: 22398

Re: Revisit #0183 with 5-piece chassis

Very tidy
by Mr. dB
Tue Sep 12, 2023 3:03 am
Forum: Dumble Discussion
Topic: High-plate Skyline build
Replies: 46
Views: 10267

Re: High-plate Skyline build

ijedouglas wrote: Wed Sep 06, 2023 2:48 am
PXL_20230906_022350745.jpg
That looks just like the amp Randy California had.



Also, what gauge aluminum is the bottom plate?
by Mr. dB
Sun Sep 10, 2023 11:51 pm
Forum: Dumble Discussion
Topic: High-plate Skyline build
Replies: 46
Views: 10267

Re: High-plate Skyline build

Is there a known, or estimated, serial number range for the amps with bolt-up chassis?
by Mr. dB
Sat Sep 09, 2023 11:50 pm
Forum: Dumble Files
Topic: Manzamp - Revisited!
Replies: 44
Views: 59363

Re: Manzamp - Revisited!

ic-racer wrote: Wed Sep 06, 2023 11:11 pm Good to see some interest in the Manzamp. Especially since the EJ amp has surfaced. Like, what in the heck is a Manzamp preamp? My impression of the Manzamp I build was the tone was in the power amp section.


Maybe HAD recycled the name for a completely different product?
by Mr. dB
Sun Aug 27, 2023 10:46 pm
Forum: Dumble Files
Topic: #0150
Replies: 11
Views: 4306

Re: #0150

Is it normal to see twist-lok capacitors in amps built this late?
by Mr. dB
Thu Aug 17, 2023 3:30 am
Forum: Dumble Discussion
Topic: Dumble modified Fender Vibrolux Reverb
Replies: 19
Views: 3852

Re: Dumble modified Fender Vibrolux Reverb

Based on the co-ax wire used, and the discoloration of the heat shrink, I'm guessing this amp was done a long time ago, like maybe in the mid-late 1970s?

So this is three Dumble amps that Dennis Herring has sold off now.
by Mr. dB
Sat Jun 11, 2022 1:45 am
Forum: Dumble Discussion
Topic: High-plate Classic
Replies: 41
Views: 8198

Re: High-plate Classic

Does that Tandy coax use a solid copper center conductor, or is it "copperweld"?
by Mr. dB
Sun Apr 17, 2022 10:52 pm
Forum: Dumble Discussion
Topic: OD/gain pedal for ODS clone?
Replies: 23
Views: 4411

Re: OD/gain pedal for ODS clone?

A Blues Breaker clone type pedal seems to work well with a variety of amps. Analogman King of Tone and Prince of Tone are good examples of the Blues Breaker type circuit, or Wampler Pantheon.
by Mr. dB
Mon Mar 21, 2022 1:21 am
Forum: Dumble Discussion
Topic: modifying Fender Bandmaster - Ultra phonix mod
Replies: 42
Views: 8652

Re: modifying Fender Bandmaster - Ultra phonix mod

Ya never see much speculation about what's under the doghouse in a Dumble modified Fender. But dontcha suppose, based on what he did on the smaller amps that we have seen, that he probably raised the value of the filter caps?
by Mr. dB
Thu Mar 17, 2022 10:25 pm
Forum: Dumble Discussion
Topic: modifying Fender Bandmaster - Ultra phonix mod
Replies: 42
Views: 8652

Re: modifying Fender Bandmaster - Ultra phonix mod

I think just 'merging' the threads isn't a norm unless both OP's of both threads are okay with that. I can unstick either... it's just which one summarizes the Ultra phonix mods better? That's why I said "merged somehow," to capture the contributions from both in one place. I mean I could just crea...
by Mr. dB
Tue Mar 15, 2022 6:57 pm
Forum: Dumble Discussion
Topic: modifying Fender Bandmaster - Ultra phonix mod
Replies: 42
Views: 8652

Re: modifying Fender Bandmaster - Ultra phonix mod

What's the difference between Ultra Phonix and Rock Phonix?
by Mr. dB
Sat Mar 05, 2022 2:24 am
Forum: Dumble Discussion
Topic: Dumble Bargain
Replies: 34
Views: 10990

Re: Dumble Bargain

Too bad there's no gut shot of the preamp.
by Mr. dB
Sat Mar 05, 2022 2:18 am
Forum: Dumble Discussion
Topic: Slash and Dumble
Replies: 4
Views: 1340

Re: Slash and Dumble

" I thought ‘five’ meant five-hundred bucks!" :)