Hi everybody.
Recently I had the chance to buy a B&K 700 Dynamic Mutual Conductance Tube Tester in very nice shape (a nice addition to my...
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by caesparzaYesterday, 08:25 PM
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by glebertDon't know if everyone but me already knew this, but I was struggling to do this and got a good tip and it works well, so thought I would share. I have been...Today, 12:56 AM
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by RandallI just got a FB text and photos from a guy with two broken amps, a Crate and a Marshall. First question he asks me is do I have any idea what is wrong with...04-17-2021, 11:51 PM
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by redkurnI’ve been trying to work on and repair this amp for nearly a month, I had some help stating it’s usually the output stage and told to check the...03-28-2021, 07:42 AM
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by miltownI have a Boss TU-2 that puts out a high pitched noise , not a buzz but more of a ring . It doesn't matter if it is off or on , plugged into bypass or output....
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Channel: Guitar Effects
04-16-2021, 02:06 PM -
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by TomCarlosFriends....
I have another amp that I will be evaluating for my friends estate sale. This one is the Fender 75 tube amp. From afar, the amp...04-16-2021, 04:00 AM -
by RandallThis is an Atomic reactor FR amp that I have never heard of. The pre/PI stage puzzles me. I assume Q1 is a clean gain stage, and that it passes through C2,...
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Channel: Theory & Design
04-14-2021, 12:45 AM -
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by almavagueI'm relatively new to electronics and I'm trying to troubleshoot my Electro Harmonix Metal Muff. When the unit is on bypass, there's no sound. When it's...
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Channel: Guitar Effects
Yesterday, 09:29 PM -
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by tdlunsfoI have this newish Laney on the bench with a blown HT fuse. Fuse doesn't look too bad with an open right in the middle, so I can tell it isn't defective and...04-14-2021, 07:52 PM
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by Sea ChiefHi chaps- got a reverb gremlin in my AC15 TB I wonder if anyone can shed some light.
I get the reverb happen 1 strum in 30 lets say. So its on,...04-15-2021, 12:47 PM -
by ca7922303No power on this one. Wasn't able to locate a schematic. I believe I remember it had some voltage readings from transformer. Would appreciate some help getting...04-12-2021, 12:05 AM
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by ca7922303Powers on, no output. Old project. Recall tracing voltage from input. Not able to find where it stops?04-11-2021, 11:59 PM
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by tigerzillyI did it again. A relapse. I picked up this Silvertone 1300. Apparently 1949, but I haven't looked close enough to verify the date. Here are some pics....
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Channel: Vintage Amps
04-15-2021, 02:26 PM -
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by TomCarlosMEF members...
Anyone have a schematic for the Randall Switchmaster 150, AKA "RSM-150"?
This is a two channel amp. Both...-
Channel: Schematic Requests
04-16-2021, 10:41 PM -
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by tigerzillyIt's big. It's heavy. It has lots of tubes. It was cheap. I understand it's a 200 watt bass amp. Any love for these?...
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Channel: Vintage Amps
04-15-2021, 03:10 PM -
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by AlbatrossHello, I am new to making humbuckers. I've made maybe 5 or 6 so far. I just need some peace of mind that I'm wiring them correctly.
They aren't sounding...-
Channel: Beginner/ Hobbyist
04-16-2021, 01:46 PM -
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by Mr_bibbleshttps://elektrotanya.com/gallien-kru.../download.html
Hey y'all,
Got a GK RB1001MK II with no output, but also...-
Channel: Music Electronics
04-15-2021, 08:13 PM -
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Hi chaps
the good news is that my rebuild of the BS ht-60 is virtually finished. Everything is working.
the only remaining issue...Yesterday, 07:00 PM -
by The JonaldHello all,
I'm having an issue with a humming Vox AC30 6TB. It's one of the reissues from the 90s with a tube rectifier and vib-trem switch....04-03-2021, 05:13 PM -
by Drummer4gcI'm working on a Peavey Bass 300 from the early 70s. It seems stable when turned on and no load is connected - on a bulb limiter, I've got a stable dim glow...2 Photos01-24-2021, 04:08 PM
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by PixelI have a Baldwin chassis with power and output transformer. It originally had four 12AX7, four 6BQ5 and a 5U4GB. It also had two output channels but I have...
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Channel: Conversion Projects
04-15-2021, 05:08 PM -