Reply With QuoteGood questions, Salsg! I'm gonna bump this one to see if we have any Fretters that can help. I am not confident enough in this area to give you any advice.
Post an intro in the Fret Players forum too if you can.
Regular Fretter
Biasing a Marshall DSL50
HI, I iwll replacing my tubes in my DSL50 and would like to learn how to bias. I have a multimeter, and know the small taps near the trim pots are. ut I have several questions.
TO measure, the multimeter should be on DCv? SHould the amp be on, but on standby?
I would appreciate any help.
Thanks,
Sal
Oranges and lemons, say the bells of St. Clements...
Good questions, Salsg! I'm gonna bump this one to see if we have any Fretters that can help. I am not confident enough in this area to give you any advice.
Post an intro in the Fret Players forum too if you can.
The Law of Gravity is nonsense. No such law exists. If I think I float, and you think I float, then it happens.
Master Guitar Academy - I also teach via SKYPE.
Regular Fretter
My Jubilee needs new power tubes also and even though I do a lot of things myself I am very wary of the voltages inside amplifiers. I don't trust myself enough to attempt my own biasing even though I wish I could. I'll take mine to a tech and wait probably about a month. If someone really does know how to safely do it here I'd be willing to investigate.
Guitars/Bass - MIM Fender Classic 50s Strat, MIM Fender Standard Strat, Squier Classic Vibe 50s Tele, Gibson Les Paul Studio, Epi '56 Gold Top Les Paul, Martin DSR acoustic, Sigma Martin Auditorium electric/acoustic, Squier Jazz Bass.
Amps/Cabinets/Modelers - Model 2558 50 watt Marshall Silver Anniversary Jubilee combo w/ Celestion Vintage 30s, 4x12 Marshall cabinet w/25 watt Greenback Celestions, Fender Blues Junior w/ a couple of Billm mods, Line 6 POD 2.0, Roland Micro Cube
Pedals/Effects - Cry Baby Classic Wah, Boss TU-2, Boss NS-2, Boss RC-2 Loop Station, Ross Compressor, MXR Micro Amp, Danelectro FAB Echo, Danelectro FAB Chorus, Danelectro Chicken Salad, Marshall Guv'nor Plus, Marshall Echohead, Duhvoodooman's Zonkin' Yellow Screamer, Digitech Digiverb, Digitech Bad Monkey, Dunlop Fuzz Face, Homemade Loop Bypass pedal, Duhvoodooman's Sonic Tonic (Maxon SD-9 clone +), Voodoo Labs Superfuzz
Regular Fretter
Salsg - I was looking at the demonstration of biasing your amp over at Eurotubes. If you haven't already seen the video that they have go check it out. After reading up on your model it seems like anyone could bias theirs easily.
http://www.eurotubes.com/euro-video.htm
My Jubilee isn't made like the DSLs so I'll have to take it to a tech.
Guitars/Bass - MIM Fender Classic 50s Strat, MIM Fender Standard Strat, Squier Classic Vibe 50s Tele, Gibson Les Paul Studio, Epi '56 Gold Top Les Paul, Martin DSR acoustic, Sigma Martin Auditorium electric/acoustic, Squier Jazz Bass.
Amps/Cabinets/Modelers - Model 2558 50 watt Marshall Silver Anniversary Jubilee combo w/ Celestion Vintage 30s, 4x12 Marshall cabinet w/25 watt Greenback Celestions, Fender Blues Junior w/ a couple of Billm mods, Line 6 POD 2.0, Roland Micro Cube
Pedals/Effects - Cry Baby Classic Wah, Boss TU-2, Boss NS-2, Boss RC-2 Loop Station, Ross Compressor, MXR Micro Amp, Danelectro FAB Echo, Danelectro FAB Chorus, Danelectro Chicken Salad, Marshall Guv'nor Plus, Marshall Echohead, Duhvoodooman's Zonkin' Yellow Screamer, Digitech Digiverb, Digitech Bad Monkey, Dunlop Fuzz Face, Homemade Loop Bypass pedal, Duhvoodooman's Sonic Tonic (Maxon SD-9 clone +), Voodoo Labs Superfuzz
Luke Skyrawker
It SEEMS like it would be easy to do. I thought this too. I haven't tried it though. I'd rather try it the first time with someone qualified and experienced right beside me. I've heard the voltages stored in the caps is enough to kill you. That makes it a no-go for me. I ain't ready for the permanent Pearly Gates just yet.
"No Tele For you." - The Tele Nazi
Ha! Tele-ish now inbound.
Regular Fretter
Spud - I've taken out the chassis on my Jube a couple of times to take out some of the dust that built up. Sprayed some contact cleaner in the pots etc. I did that very carefully too. Someone would have to bias my amp from the inside....not like Salsg's DSL50 which has the components on the back of the chassis on the outside. I wish mine were like that...my amp goes to a tech for cheap life insurance of about $60.00.
Guitars/Bass - MIM Fender Classic 50s Strat, MIM Fender Standard Strat, Squier Classic Vibe 50s Tele, Gibson Les Paul Studio, Epi '56 Gold Top Les Paul, Martin DSR acoustic, Sigma Martin Auditorium electric/acoustic, Squier Jazz Bass.
Amps/Cabinets/Modelers - Model 2558 50 watt Marshall Silver Anniversary Jubilee combo w/ Celestion Vintage 30s, 4x12 Marshall cabinet w/25 watt Greenback Celestions, Fender Blues Junior w/ a couple of Billm mods, Line 6 POD 2.0, Roland Micro Cube
Pedals/Effects - Cry Baby Classic Wah, Boss TU-2, Boss NS-2, Boss RC-2 Loop Station, Ross Compressor, MXR Micro Amp, Danelectro FAB Echo, Danelectro FAB Chorus, Danelectro Chicken Salad, Marshall Guv'nor Plus, Marshall Echohead, Duhvoodooman's Zonkin' Yellow Screamer, Digitech Digiverb, Digitech Bad Monkey, Dunlop Fuzz Face, Homemade Loop Bypass pedal, Duhvoodooman's Sonic Tonic (Maxon SD-9 clone +), Voodoo Labs Superfuzz
Regular Fretter
$60 isn't bad for a rebias.
Guitars: 2008 Gibson SG Classic, 2006 Gibson Les Paul Standard LE, 2002 Gibson SG Supreme, 2001 Gibson Les Paul Studio Plus, 1996 Les Paul Studio Gem, American Deluxe Double Fat Strat, Bluesville "Super" Strat Copy, MIK Fender "Limited Edition" Tele, JD Bluesville "Night Pilot", Yamaha AES 820, Steinberger Spirit GT Pro, Taylor 355CE, Ovation 1897 Adamas, Ovation CC057 Celebrity
Amps: Axe FX centered rack rig, Mesa 4x12 cab. Germino Club 40, Johnson JM150 Millennium, Johnson JM250 Millennium, Gibson Titan Medalist Frankenstein.
Effects: Tonebone Trimode, EH Holy Grail, Boss CH-1, Dunlop Crybaby Classic, Framptone Amp Switcher, THD Hot Plate, Yamaha AG Stomp Acoustic Processor, Boss BCB-60 Pedal Board.
Regular Fretter
Yup. Once I figure out what tubes I want then I'll take the amp to the shop. I might get another set of Groove Tubes since I've been playing those for almost the life of the amp. Medium rating. Maybe some JJs for the preamps but I do already have a new GT Mullard in V1 and it luuuvs the Marshall.Originally Posted by Plank_Spanker
Guitars/Bass - MIM Fender Classic 50s Strat, MIM Fender Standard Strat, Squier Classic Vibe 50s Tele, Gibson Les Paul Studio, Epi '56 Gold Top Les Paul, Martin DSR acoustic, Sigma Martin Auditorium electric/acoustic, Squier Jazz Bass.
Amps/Cabinets/Modelers - Model 2558 50 watt Marshall Silver Anniversary Jubilee combo w/ Celestion Vintage 30s, 4x12 Marshall cabinet w/25 watt Greenback Celestions, Fender Blues Junior w/ a couple of Billm mods, Line 6 POD 2.0, Roland Micro Cube
Pedals/Effects - Cry Baby Classic Wah, Boss TU-2, Boss NS-2, Boss RC-2 Loop Station, Ross Compressor, MXR Micro Amp, Danelectro FAB Echo, Danelectro FAB Chorus, Danelectro Chicken Salad, Marshall Guv'nor Plus, Marshall Echohead, Duhvoodooman's Zonkin' Yellow Screamer, Digitech Digiverb, Digitech Bad Monkey, Dunlop Fuzz Face, Homemade Loop Bypass pedal, Duhvoodooman's Sonic Tonic (Maxon SD-9 clone +), Voodoo Labs Superfuzz
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