View Full Version : Amp Technical Info
- Any way to inspect multi-section can caps?
- Marshall JCM900 2101 100 Watt-Volume Problem
- slowing down tremolo
- Good Amp Tech in Houston, TX?
- AC30 bright mod help (moved from the amp/cab thread)
- My Stupid Alnico Gold
- Blues Jr Spuuter
- SOVTEK mig-100U
- Which one is the phase inverter?
- Silverface Twin Reverb question
- Any boogie techs? Mark 3 question.
- 5751's instead of 12ax7's?
- Adjustable bias mod
- Effects loop question...
- Can a 5v4 be used in place of a 5y3?
- Can I run my SF Princeton Reverb through a 4 ohm cab?
- Will KT90's fry a KT88 amp?
- Bogen ECC83?
- getting a high-pitch whine, droning noise from my amp...
- My silverface princeton won't turn on! what gives?
- Wiring recommendations please...
- Just finished first kit - no sound - Hellllllllp PLEASE
- '94 Blues Deluxe Problem-No Sound
- Could I use THIS in my champ clone?
- Coupling cap voltage values
- Source for chassis?
- JCM800 2205 head (lotsa pics +gutshots) - help needed!!
- So, I'm being told confusing stuffs about caps
- Buzzzzzzzz Help Needed
- What's the difference btwn Mullards and
- Favorite 6V6s in tweed amps- Whats yours?
- Which reverb tank for a '74 dual showman reverb?
- Ripping sound
- Cap bridging rectifier and power tube?
- Blackfacing a 68/69 Bassman
- Goldtone gone south...
- De-soldering a huge blob on the chassis
- Tube-rectified 2204 - Oh yeah !!
- Soldering station settings
- Channel switching w/ G-System???
- 5E5A Photos?
- Marshall TSL 602, loud hum...any ideas?
- Pre amp tube tight fit?
- What would cause this noise?
- Recommend a Traynor amp tech in the SF Bay Area
- Somebody told me that larger caps (actual size) tend to be better for audio
- How easy is it to switch in additional gain stages?
- Yet another "Does the rectifier tube affect my sound" question ...
- questions for folks with vibro-champs re: vibrato and gain
- Getting some weird static/ distortion from my amp, please help.
- Weber Bias rite....do I add the readings together ???
- Coax cable: which type do you use?
- Marshall JCM800 Ground Issue
- what happens if I change the power cap values?
- Blues Junior HAM radio noise/feedback?
- Fender Princeton Reverb II
- Rec. a SoCal Amp Repair etc
- Amp Scare - Advice Needed
- Cap Job Cost?
- 6v6 tubes at 390 plate volts 17.7 and 16.9 ma bias
- 12AU7/12AY7 in Vox AC30 (PI)
- I Need Tube Knowlegde!!!!
- 5f1 mod?
- amp pre amp v.s effects pre amp??
- changing output transformer
- Hammon organ tubes: good for guitar?
- VOX AC15 problem
- Schurter 5150 Series AC Inlets
- Anyone have a Crate V33 212 all tube combo?
- Help! Amp cuts out!
- Recommend amp tech's in Chicago 'Burbs?
- Hughes & Kettner Edition Tube Noise - HELP!
- Rookie in trouble with PPIMV removal
- Mismatched tubes: 6L6 paired with 7027a
- Question about adding a tone stack
- Amp gurus please take a look at my board
- my standby switch doesn't prevent cathode stripping, apparently
- DIY idea based on the Showman
- Why different plate resistors in Marshall PI ?
- Uk & US Celestion Speakers
- correct material question
- 1971 Super Reverb AA270 questions
- Amp hum - turns down using MV - advice needed
- 5e3 suddenly blowing fuses
- Late 70's Pro Reverb - Comments needed!
- Marshall 8040 ValveState help pulllezzzz
- reverb not functioning but audible when kicking amp
- Amp is looking for 8 ohms and I have a 16 ohm cab - what should I do?
- Pre amp tube experiment!
- Long Tail PI: Later clipping
- Tweed 5e3 and humbuckers an indepth look
- Strange problem with my amp
- Reverb tank swap?
- GE Black Plate 12AX7
- Hybrid amps
- What size filter caps for '66 Fender Pro Reverb?
- Can anyone help me identify this RCA 12AX7?
- sole control
- Gilmore Jr. speaker recommendations?
- anybody seen these weird tubes-- any of them usable?
- Loud noise from Super Champ XD
- RCA Receiving Tube Manual
- New 10" speaker for modded Princeton non reverb?
- Peavey Classic 30 amp Hiss
- Do you vacuum an amp chassis after you've been inside?
- Amp Techs, Need Some Help Please.
- HELP. Schematic for GT Soul-O-45
- JCM 800 feels hotter than usual...
- Wiring a DPDT switch in a cab.
- ROHS-compliant Solder Sucks!
- Can anyone recommend an amp tech in Portland?
- Princeton reverb
- (probably) A very stupid cab design question:
- How would I go about testing tubes?
- I left my amp on all night
- Transistors for SS Acoustic amps?
- Tiny Terror PT
- speaker cab acoustics
- Fuse Holder For Music Man 112 RD 50
- Source for custom transformers?
- Books, essential reading - tube amp
- Is it easy to Fix the Reverb on a Solid-state Fender amp?
- Anyone heard of transformerless amplifiers? Interesting alt. to an opamp?
- Weird Emplexador red plating ???
- gretsch 6162 reverb tank replacement?
- Replacing an Output Transformer
- Mini amp? or hugish pedal? I'm thinking I'm gonna build it, and see...
- Good amp tech in NW AR area ???
- Wanted: Velocette Repair Tech
- free tubes for my superchamp...
- Turn amp on and get loud hum...no sound
- Weber EF86 pre in a Deluxe kit
- Fender Tweed Amp bias?
- OHM Question... I'm Confused
- Fargen Mini-Plex Tube Swap. [Owners] Please Help
- Changing Tubes in 70s Fender Super Reverb
- what is your favorite EL84 Tube?
- Single ended 6V6 circuit ohm rating
- Turn on amp - no music comes out!
- Orange OR120 compression/clipping problem
- Vibro Champ has rising leakage?
- Top Hat Speaker Output(s)
- Biasing TAD 6L6WGC
- Tube amp hum
- Frankenstein Champ low distorted output
- Where can I get a plexi panel cover for my JTM45?
- Tube experts - interesting find.
- Question about cap types in amps
- Anyone know the specs on a crate V33 output transformer
- Fuse Question
- Tube noise.. heating/cooling?
- Bassman 70 - both channels hum
- Will this work for wiring a stereo cab?
- Took My Beam Blocker Out Today
- Neutral -> PT: Butt-splice or wind/solder/heat-shrink?
- Who sells toroidal transformers?
- Budda amps are hot -- literally
- Oscilloscope biasing
- Cathode bias, matched or unmatched tubes?
- Biasing a PRRI
- Normal Channel Hum...
- Power tube ratings
- New EL 84's Opinions
- Raytheon 7025 'Holland' yellow script
- RCA Blackplate 6L6GC's vs. JJ 6L6GC's
- Preamp tubes for Mesa Lonestar special
- Bogner XTC effects loop switch died...
- Ecc 88 what is it for?
- Different types of Master Volume?
- Help with Tubes For Super Reverb RI
- Tung-Sol EL34B
- Traynor YBA-1A mods - who's done it?
- Schematic for 1 Channel Super Reverb?
- Marshall problem
- Need help on an AA764 Vibro Champ
- Need hellp with a tone stack issue
- Good EQ pedal?
- Groove Tubes Silver Series (6L6)
- Hot smell, bright glowing tube
- can we perceive sound differences between 120v/220v/230v/240v?
- 110,120 or 130 volts?
- Which power tranny for new SE build?
- Plate Voltage for JTM45?
- fix bright switch on Super Reverb
- Switching 5881's to EL34's
- How do you calculate OT Tap impdence?
- Pre amp tube brand?
- vibro-king reverb send?
- Mercury Mod + Bitmo + Epiphone Jr
- New caps,new question!
- Modded Marshall help
- New Fender Concert Amp dead
- cathode resistor value for 6L6 in BF Champ
- Anyone know where to order power tube clamps like...
- So I've decided to build an amp...
- Can someone help me with some schematic/tube math?
- Fender Pro Jr., power fades out while playing.
- 4x12 cab wiring ???
- Need some Champ help !
- JJ E34L 25 or 30 watt?
- DMMvac vs. SCOPEpk-pk vac: Pic
- SF Princeton NR information
- I need a crate v50-112 schematic
- Power amp section questions
- Amp farting on channel 2. Please help.
- Screen grid resistor question
- FX loop trouble
- Champ Voltages
- Help an idiot with a THD hotplate and peavey c30
- Simple question: Are reverb tanks directional?
- Where can I find a tube tester without having to buy one?
- Engl Screamer Speaker Connection
- FX loop help
- Vintage 12ax7 ID Help Please
- Anyone familiar with Ceriatone OTS mods?
- which 12A_7 tube = same gain of 6SJ7?
- BlackFace Fender Vibro Champ question
- Line Out Help....
- traynor bass master
- Does a replacement 12AT7 reverb driver tube change the overall tone of an amp?
- What Speaker is this in my amp??
- Can I unplug a combo's loudspeaker & use it as a "cab" for Head
- 4x8 cab or combo?
- Matched pair vs. matched quad
- Why Do Tube Power Sections Have That "Punch?"
- Modding old Selmer for adjustable bias
- Footswitch (fender/marshall)
- Headphones
- Marshall Vintage Handwired Cab
- Help: Adding a mids control to my vibrolux
- Broken Marshall JMP -78
- '65 BF Champ getting hot quick
- Can you wire a 2xanything cab as both parrallel and series?
- Help dialing in Ceriatone 50w 1986 bass plexi
- Tone controls don't work....
- Speaker mag screws
- What's the difference between a 'line out' and the FX loop 'send'?
- Will 5881s substitute for 6L6GCs
- Tubes are 'loose' in the sockets
- Triplett tube tester score
- Mixing channels in a 2 channel amp
- Pro Jr help needed
- Which circuit in a 79 Princeton Reverb?
- Identifying Eminence Special Design Speakers
- Transformer Noise? (Splawn Quickrod)
- C30 tube 'red-out'
- Finally snipped the bright cap in my Marshall
- Fender Champ hums
- 5E3 with Baxandall pre?
- Speakers overheating ?
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