- JAN Raytheon 6072A black plate; anyone tried them?
- 1959 Princeton Question
- Vintage Traynor combo is "popping" loudly when I turn it off. Tubes?
- JAN Phillips 12AX7 ?
- Q for the experts re: tube height
- NFB wire to.......?
- Sozo premium caps
- Blackface Champ Issue
- Help - 63 Brown Deluxe gone bad
- Allen Old Flame 60 cycle Hum issue PICS ADDED!
- Sound affected by OT taps?
- help me select new speakers for my super reverb
- How to tame the top end of newer Traynor YBA-1?
- Question about BF tonestack V1...?
- Marshall Artist 3203: Schematic and Mods?
- VHT Pittbull 45 Class A idle current question
- Opinions on Bias - Amp Builders / Techs please share
- I think I've cornered this JCM 900 fuse blowing problem. Opinions?
- Please help..My Traynor is squealing!
- Powering up amp after replacing caps
- Blocking 8Hz from Output Valves
- Negative Feedback Circut??
- eliminating hiss?
- 4X10 Deluxe Reverb ?
- Tweed Blues Deluxe crackle... HELP!
- Vox AC30 Problem
- Power tube question.
- Another Tube Bias thread...
- Two Rock problem: Crackling when PAB is on?
- 8 or 16 ohm speaker in 1 x 12?
- What makes a tone circuit work/ fail?
- When I connect speakers to both of the amp's outs, should ohm switch be changed?
- valve trouble - need reply ASAP please
- Clark Beaufort split cathode voicing...
- NOS Allen Bradley resistors? Where?
- Do tubes have "good days" and "bad days"?
- OT for '69 Dual Showman Reverb
- 1976 Silverface Twin - Blackface Conversion/ Push Pull Master
- Ceramic Vs Alnico...Twin Reverb Ri
- What impedance/ohms is a Supro Super 1606?
- amp with choke vs amp without
- Vintage Fender Amp Reverb Buzz
- Vicky 5112 NOS tubes
- 50 year old transformers leaking wax.
- Power Transformer Center Tap Standby
- AC line filter?
- Help: 'woofing' sound from my BF Super Reverb tremelo
- Is there a "Biasing 101" or "Biasing for Dummies" reference?
- Marshall JMP Plate Voltage
- I just cracked a NOS tube putting it into my tube tester!
- 6679 version of 12AT7 : Better used as phase inverter or reverb driver ?
- Help diagnose my 1959RR, she went "POP"...
- 5F6-A losing power
- SS amp symptom, no power to speaker
- Amp channel switches by itself?
- Is a 6L6GC tube amp able to use 6L6WGC or 5881 tubes ?
- Mesa Trem-O-Verb help question
- Blackheart Handsome Devil Help!
- Traynor YBA-1A Questions
- 6973 Electro-Harmonix RI vs NOS
- Marshall 2204 mv mod
- Wiring diagram for a tweed champ
- Mutual Conductance?
- ampeg reverborocket info-help me figure out what year it was made
- NOS 12ax7s: GE vs Phillips vs RCA
- HELP! Humming from Effects Loop?
- Telefunken 12AX7 with numbers-no diamond
- I'm Hoping To Get In To Building Amps
- where are the amp gurus!
- Fender SF Champ to Tweed
- using a reverb tank with a lower input ohms (deluxe reverb)
- Ampeg malfunction
- 12AX7 long plate vs. short plate?
- Heritage Colonial Fuse Type and Location
- NKT 275 terminal layout?
- Converting from Fixed Bias to Cathode Bias!
- Can you wire an output transformer like this?
- What could this noise be?
- Fender Blackface Bias Pot Question
- which amp building books are better: O'Connor or Fuchs?
- F500mAL 250V fuse equivalent to a T500L 250V one?
- JCM 900 clean channel acting overdriven problem
- Either every cap I own went bad or I'm crazy, please help!
- Helpful websites for someone trying to learn about electronics
- Need Help with Champ 5F1 Kit!!
- *sigh* another "help me ID this tube" thread
- Tremolo noise on my Tremolux
- Power tube failure in a new amp?
- Is this possible?
- External Speaker Internal Impedance Switching
- old nameless project amp transformers
- Amp crackles on "D" note.
- 64 Deluxe Help
- Swapping out 6L6's for 6v6's?
- orange micro crush
- What are the specs on this vintage Jensen?
- modern caps
- Tube QC Rant
- Tubes Question...
- I just figured out why my plexi Marshall 1987x sounded so damn harsh...
- Does anyone have a manual for a Fender Super 112 amp?...
- Gut shots of a maggie m-199-3J
- Traynor YGL-3a mkIII help! Please!
- Bad Tube!
- playing with B+ voltage in preamps
- V30 versus Gold.....what to expect
- Desperate. Need help w/ modded Blues DeVille
- Gibson Tweed GA 20 help. Fuse question
- 2x10 wiring
- amp fizzing for the first few minutes
- 3x12ax7 vs 3x12au7
- Bandmaster reverb oscillation
- One poweramp socket draws more current than the other- Should I be concerned?
- Correct impedance for ext speaker?
- Amp left on stand by over night.
- Strat - Pots, Switch, Caps & Wire ( & tone change )
- super reverb reissue losing headroom?
- anybody out there really, truly understand rectifiers?
- Attenuating with rack effect ok?
- One output tube hotter than the other? Normal?
- My JCM 800 keeps dying; any advice?
- Can a Twin Reverb II be converted to blk face specs?
- I'm red plating
- Source of Amp components
- why do most Fenders use 0.1uF Phase inverter coupling caps to output tube grids?
- Peavey Classic 30... ARGGHHHHH!!!!
- EL-34 blue flaming... is this a sign of impending doom?
- tube amp volume does weird things....
- correct way to wire a multi-tap output transformer?
- Third P/I in 2 months. Ideas?
- Are there tonal disadvantages to cathode-biased amps?
- Valve jr recurring voltage fluctuation issue
- Alnico or Ceramic or both?
- Any experience with the RFT EF86 tube
- Effects Loop Problem
- Treble swell on BF Super Reverb
- Best Amp repair in Cuyahoga County
- Need help decifering PT taps...
- So...I may have found the culprit
- VOX AC15 - Fizzy sound
- JCM900 output impedance q
- Did real Tesla 12AX7s have a solid disc
- fuchs ods 50
- fuchs ods 50
- '64 Champ - Is my OT shot?
- Way different electrolytic cap (physical) sizes?
- EZ81 and EZ90
- 6L6 GC International Service Master U.S.S.R
- Pre amp/Power amp concepts...
- Fender Super 112 making strange intermittent buzz?...
- Very low and harsh overtones when I play....need help ASAP
- Input Resistor Question
- brownface rectifier
- '96 Fender Blues Deluxe -- popping weirdly
- Marshall mavens help out an old altar boy
- Marshall Valvestate Footswitch Mod Bi Amping
- Did I damage my Lonestar Classic?
- I fried my matchless little monster
- Custom Tube Amp Help
- recommend a multimeter...
- Deluxe Reverb Killing Power Tubes!
- Blowing fuses
- SF Fender Bandmaster: Solid metal-shaft pot ok? Or only nylon/plastic?
- Rivera Venus 6 112 combo...
- Strange bias observation in my Fender Deluxe
- 1979Silverface Princton non reverb inverter circut mod
- Ceriatone OTS loop question?
- Just purchased new caps for my Bluesbreaker RI...what can I expect
- Where would you place NOS Brimar and Tung Sol tubes as to level of quality
- Sylvania Tubes
- Can You ID This Amp?
- Tube Guru's help please!
- Who Made These 6L6GCs?
- 12AX7 subs: 12DF7 and 12DT7
- Need help with crazy noise on my 1966 Maganatone M10A
- Voltage Reg. Necessary?
- Differences between Smooth Plate and Ribbed
- Distortion on decay with NOS Blues Jr.
- Tubeworld?
- Princeton Reverb Bias Question
- Soldano SLO Question
- Fender Twin AB763/ Super AB763 schematic
- Bandmaster / rack effects combo???
- Tube Amp Repairs/Building for a Noob
- What type of speaker is this?
- Super Reverb help
- Super reverb gut shots. Why does this one sound so good?
- Traynor TS-25 Help Needed
- Cascading Octal preamp tube gain stages??
- How to Bias a Bassman
- Jumping two amps w/ Dumbleator
- Looking for pics or layout of split cathode mod for Marshall 2061x...
- Marshall 2061x Reissue - When Did the Fix the OT?
- Installing a passive crossover in a bass cab
- Verb on Vox AC 30 not working
- Loud footswitch pop
- Ringing sound????
- 1/2" or 3/4" ply for 1x12 construction?
- speaker...impedance....amp head.....burning...GAH!
- Best GZ34 Rect Tube?
- fuse problem
- Where is V1 on my PRRI?
- Speaker Cable for Combo amp
- Help with Prosonic?
- EL34's in a Bluesbreaker Reissue?
- AA764 Blackface
- installing a tube without the orientation tab
- Harmony h-305A
- School me on build your own amp kits.
- Does this sound like a dead reverb pan?
- Heritage colonial problem!!!!!!
- Anybody know where Todd Shock is?
- 2x12 wiring--'series' or 'parallel'?
- Biasing a 64 Showman
- Switching tubes and blowing fuses
- To change tubes in Badger 18 head
- Fender Blues Deville options
- Channel jumping options for 4-input Marshall?
- Amp Repairs in CT HELP!!
- Marshall Lead 100 Question?
- Kelley attenuator
- Fix for a broken octal tube key
- Amp died at a gig last night - blown fuse; need info
- Suhr Badger hissing like a witch
- Marshall Bluesbreaker Reissue Tremolo Question
- Basic electronics build help for a noob
- 12DW7 Brown Deluxe
- Mod Help (Champion 600) NO SOUND
- Electronic Honking Noise time to change tubes?
- Philco radio to desktop guitar amp?
- Best 12ax7 for cathode follower?
- what ohms should speaker read on an ohmeter?
- Need info on modding Crate Vintage Club 20
- Can overdrive pedal damage amplifier circuitry?
- '68 Plexi Clone: Crackle when I knock on the chassis
- Quick question: Mullard CV4024 heater "flashes" on power-up...
- 5751 tube in my TT is noisy in V1, but not in V2
- What's the minimum speaker impedance for a Fender Princeton Chorus?
- Reverse Polarity Speaker Cables and an Attenuator?
- Tiny Terror Retubing Advice Needed
- Need a New Input Jack for My Marshall Valvestate 8080
- Strange Speaker Ohmage Question
- resistor values in a fixed tone stack
- What is done to a speaker to determine its impedance?
- A Shout-out to THD
- 5E3 Power Tube Bias
- What do these tube measurements mean?
- Larger speakers in a Champ and Princeton
- Idiotic Cab Question Alert !!!
- Vibrolux reverb baffle with 12" and 10" speaker ?