View Full Version : Amp Technical Info
- DRRI: How do I clip the bright cap?
- Tone pot value, Marshall 18
- Dual Showman Tubes
- Does anyone test tubes as a business?
- Dave Hunter, "The Guitar Amp Handbook" Online source
- A Couple Of Resistance Questions...
- Tube Amp reverb noise, no vibrato intensity, unknown model.Help please
- Need amp tech in DFW recommendation
- tube testing at home?
- 6V6:Tung Sol vs. JJ/Tesla
- 1987x plexi re-issue bright cap, how?
- Celestion Gold 12" Fizzy
- How do you deal with old house unbalanced wiring?
- vintage Jensen heat damage?
- So those Weber Copper Rectifiers..........
- Bias pot range insufficient in a Marshall
- Ouchie !
- Starting Point for Amp Info/Repair?
- Choke for 1955 Two Hole Bassman
- What to build next?
- Please help info for 1975 Fender Super Twin
- Heritage G12-65 -modded terminals!
- Triode Electronics Transformers
- Princeton Reverb Clone Problem
- Need some technical FX loop help...
- Star Grounds
- Fender Deluxe reverb w/boost schematic
- Fender amps can handle a total ohms mismatch?
- Can you run a Victoria 45410 w/ 6V6s?
- Pentode/Triode Switch for my lil Epiphone Valve Jr.
- Shiva blown fuse help please!
- Nos Kt-66 ?
- Hot Rod Deluxe crapped out. Help!!
- Ceriatone 2203 plus KT88
- Need a Schematic for Pathfinder 15R
- Fender Pro Reverb Tube Question?
- Princeton Reverb 2 Part Question
- Will an attenuator still blow low wattage speakers?
- Biasing an Allen Amp
- Speaker Change Question
- Using Only One Side of a Power Amp
- Amp problem: Ugly compressed distortion only during pick attack playing
- Demeter: Converting TGP-3 from 220V to 120V
- slow blow/fast blow fuses change tone??????
- Egnater Mod50 intermittent crackling/static
- noisy transformer? What the ....
- Reverb potentiometer questions
- Stuck Tube...Help!
- Marshall Lead 12 Owners...is this normal?
- Ohms: How important is it that the amp and speakers match?
- who can service a 30th anniversary Marshall?
- Has anyone built a ga-20?
- Help Me (tube issue)?
- Weber M45p Master Vol Question
- Cabinet Joinery
- Staple Gun for Cabinet Building
- Prefered clamps: Cabinet building
- ceriatone uses saturn magnetic transformers?
- Tubes over or under biased
- Would it be possible to make my dual showman into a dumble?
- If you change to a different brand of el34 in a Marshall jmp, do you need to rebias
- Help with Fender transformer codes from MMB amp
- No Sound From Peavey Delta Blues
- Ceriatone 5e7 Bandmaster, headroom and noisefloor
- Tweaking Tone Stacks?
- TAD 7025/E83CC Highgrade?? 12ax7a
- Electrolytic filter caps: Tone differences because of age, brand, or other factors ?
- cryo treated tubes?
- Super Reverb Vibrato Fading in/out
- Tremolux gut shots needed - new plug
- '64 Deluxe-recone or ??
- Hughes & Kettner Edition 20 ext spk'r
- (New) Rivera Chubster issue
- Got a bit behind sorting my tubes....
- SF Bassman tube recommendations?
- Tube layout of the /13 SJT 10/20 ?
- Help! Boss AC Adapters
- dumb questions about effects loops
- Thinking about building an amp (own design ish):
- Courses to Take To Be An Amp Repairman ?
- My Marshall JMP's sound changed from just sitting too long??
- Help; my amp died
- Impedance mismatch
- Gut shots of Matchless Lightning
- Using a Champion 600 as a preamp?
- What could happen if tubes are not properly biased?
- Red Tube Glow....Burning Smell
- Sylvania Tubes?
- Intermittent Amp Problem (Ga-20T)
- Bright Cap Question
- Another Bias question
- GE 6L6 GC's....what do I have here?
- What voltage rating do the caps need to be for tone stack mods?
- 71Champ three prong
- Ok tell me I'm dreaming, but...
- Quick rectifier question
- "PM" Brand EL84 Tubes, Opinions?
- The gorillas at UPS
- Problem with treble control on Matamp...
- Excellent Amp Tech alert in MA!
- School me on caps
- Loud Buzzing Issue with Amp
- mods for jcm-800
- "Singing Champ" question
- Tremolo Hum
- 1966 Ampeg GS-12-R 6V6 for 7591
- Output Transformer Stauration?
- Dr.Z crapped out
- How to remove Fender baffleboard?
- Adding an effects loop to a Twin?
- stereo amp with one 2X12
- Choke Mounting Question
- 12at7 in budda sd18 v1
- Vibrato Intensity doesn't work
- What amp kit will work for me??
- Rackwah produces constant feedback, sounds like a whammy =(
- Matsushita 12ax7 ...ID ?
- Speaker impedance confusion
- Mesa Single Rec Head speaker load...
- Pro Junior fire
- VHT Cabinet Wiring Problem
- Intro and etiqutte question
- Couple of construction questions
- Freaky sounds from my amp
- Tests and test tools
- question about Fender tone stack Cap value
- 12AT7/CV4024 in tweed phase inverter
- Modular design considerations
- Transformer help needed
- Can I Measure my Speaker Ohms?
- Tube Experimentation: On/Off Cycling & Tube Damage
- Genalex KT-66's Running a little Hot
- AC30 speaker swap ?
- AC30 reverb not working
- Mesa Boogie Triaxis Effects Loop
- Help - New Amp Build - AC Voltage on B+
- Two brand new Twins with problems
- Transformer Buzz - Even in standby
- Epiphone Blues Custom - anyone swapped speakers???
- Sacrifice to the Tube Gods...
- Amp hum - can someone point me in the right direction?
- Help me identify what to change
- schematic search....(original) Polytone MiniBrute
- Combo Buzz/Rattle ?
- The Right Filter Choke Question?
- Torres parallel loop
- Microphonic caps
- Bassman Champ ???
- Tightening Up a 5E3's Tone
- replace two prong with three prong plug?
- Cabinet is buzzy until I remove the back
- Tweed Bandmaster build
- Adding a bright cap to a 73 Fender Vibro champ
- Attenuators and wattage
- Question on wiring speakers.
- MV that works best right BEFORE PI??
- I'm at a loss (Amp Noise and Crackle)
- PPIMV - post or pre - terminology
- NOS Brimar microphonic?
- old Oxford spekaer: Which is the + terminal ?
- Beeping noise in all my amps!
- Rectifier Tube Question
- Bell Sound Pacemaker
- who sells dual, concentric pots?
- can i use the reverb section as an effects loop?
- champ 600 volume question
- Reactive / Resistive dummy load
- Storing Tubes & Extra Gain Stage.
- 6146B Tubes
- Flashing blue tubes
- Ampeg BA115HP Transformer question
- HELP!! with a VHT super 30!!
- when do you call a cap leakage
- Tube Matching Services?
- Using a Chassis Punch
- Cathode Bypass Capacitor
- Voc AC30H2
- Hiss on reverb after doing mods!!
- EL34 conversion in vibrolux
- Swap 12ay7 for 12ax7???
- ampeg R50-H specs
- Channel "Bleeding" on a Fender Bassman...
- fried egg sound
- 6V6GT bias/Matching tube question
- slower tremolo BFSR
- Fuse question
- Speaker Connection
- Is this reverb tank worth anything?
- First amp with an fx loop?
- Input Jack Sensitivity - Bluesbreaker RI
- Splitting a signal - possible impedance issue?
- EL84L...Interchangeability
- New Tung Sol EL34
- Cathodyne PI: Using other half
- so.. is it true that if you pull two power tubes from a 100W superlead
- Wavetek 25XT Explosion
- Hoqw much difference do you think a different transformer makes in a build
- How to remove tubes? Total n00b question
- Phase Inverter Tube Changes and Impacts
- Anyone know how to make a switchable inpedence 2x12 cab
- Bypass Cap on Filter cap ?
- Amp - Pedal interaction
- 12AX7 ID Question
- Tremolo too fast on 68 Super
- OT question
- CV4024 Uses?
- Good, Cheap(?) Tubes for 5E3/18watt clone
- Old Bake Lite Weller Soldergun Repair?
- 6V6 really safe to use in 50w superlead?
- fixing a broken amplifier bias pin
- differences between a DC30 & an AC30, circuit wise?
- Shortlist of Output Transformers
- Learning About Amplifier Design / Repair
- My Allen Brown Sugar Kit Build
- Standby switch wiring trick?
- In amp reverb problem?
- Best tube for Marshall?
- Triode runs on booze
- Pause before sound?
- Tube questions on a '57 Tweed Twin RI
- Divided by 13 FTR37 Tube Diagram
- My 71 Pro Reverb is blowing fuses...
- anyone have mod info for jcm-800 50 watt
- amp tech needed in KC/Lawrence area
- combine one 16ohm and one 8ohm speaker?
- 2 Prong Plugs
- amp kit: Mojotone or Marsh
- Amp Repair in Orange County.....
- 1963 Fender Brown Deluxe Speaker suggestions and other questions...
- Help With Original Vibroverb 15
- 6L6 or 6V6 in the same amp
- Tubes for Fender; Marshall
- Question for Blue Strat! or others intheknow!
- Tubes gone bad?
- Tolerances between matched tubes?
- Harvard 5F10 Kit?
- Weber speaker choice for 10x12 combo.
- '64 Fender Vibroverb Reissue question
- power lamp goes out (fender model t)
- 5E3 tech questions
- Effects Loop Volume Problems
- Is this OK ? speaker mixing, impedance question
- How do these Hiwatt DR103 Guts look?
- Need some help understanding this circuit diagram
- how hard can i drive tubes in cathode bias?
- Mixing 6v6's and 6L6's
- Push Pull pot in PCB amp possible?
- How close are the biasing guidelines for the 6550 and KT90
- transformer/6L6 silverface deluxe reverb question...
- Going from EL34s to KT66s in my '68 1986 Plexi
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