- Marshall 1987x FX loop woes.. ;[
- Switchable Bias Resistors and Other Tweakables
- another preamp tube question.
- Amp Guru in Toronto?
- Laney LC15R and 1x12 cabinet:- bypass internal speaker defeat?
- PSU question for amp designers
- Undesirable noise from tube amp
- Adding an FX loop to Allen Old Flame?
- Amp tremelo ?
- Stand-by not really standing by
- Best New Production 6550 or ?
- Vaunted Blue Mallory Caps....
- 25 or 50 watt 12F150 in my SFDR?
- TSL 60 Volume question
- Mojave Line out?
- Standby - tube saver at shut down??
- Help diagnose hum problem
- Any good places to buy parts in Toronto or...
- EVH 5150 III change to EL34's?
- Engaging the vibrato in a BF Fender
- My first time biasing new tubes...
- Why did I wait?
- Brimar 6V6GT's or Sylvania 6V6GTY's ?
- Replacement Baffle Source?
- opening a traynor head
- So, what's the most effective way to reduce the gain in the MV section of my amp?
- What Does JAN mean regarding NOS Tubes?
- Is this a Dumb Question?
- Vox Ac15 1959/1960 schematic differences?
- Is there something wrong with my Biasrite?
- Help me with my tone stack.
- Technically, Why Does MV Get a Bad Rap?
- Amp tech ?
- Cutting an old Chassis?
- Vibrolux voltage measurements
- Univalve Issues
- Best books on Vacuum tubes?
- NOS Sprague 'black beauties' - Would they still be good?
- Fender Champ - Extension Cab suggestions?
- Strange glowing plate problem - help.
- Spray cleaner : Which for tube sockets, which for potentiometers ?
- 6V6s vs. el84s
- Reducing Volume
- 7199 to 12ax7 swap; is this possible?
- 64' Princeton Question
- Dr. Z Maz Sr. Blowing Fuses!! Help!
- Cleaning up an echoplex...
- Unwanted volume decrease
- Fender Twin Question
- 1973 Bassman 50-Potential mods?
- Why Few PPIMV in Production amps?
- Do power tubes affect tone?
- Super reverb baffle question
- '76 SFPR Way too much Bass
- Celestion Blue vs. Weber Blue Dog.....
- Scratchy Sounding Jubilee.....Help Please!
- What exactly is this piece? (ground buss?)
- What can I expect from changing the baffle?
- Bridged two Metal Can Cap prongs...what did I break?
- Tuberolling in a Vibro Champ
- Can someone recommend a good Soldering Gun?
- Reccomend me some tubes (64 Vibroverb)
- What to do with a single Sylvania 6L6GC
- Marshall rivet extraction and replacement...
- Can/should I fix...
- Finding a Bad Tube?
- Tube Getters burned up
- A few tube noise/general tech questions...
- What is the tube order in an Ampeg Gemini VI?
- What's a good EL34 for mids?
- Squealing Power Tube
- Speaker Effiency Question
- Help with a Marshall Lead & Bass 50
- Help with a Mesa Boogie Mark III
- 6V6 in my Champ has gone cold. Why?
- old filter caps and plate voltage
- how important is it to use real expensive birch in cabinet making
- Help IDing these red coated (ERIE) resistors?
- Reduce/Eliminate Power-on Pop on SS Amps?
- Why is this cap in JTM45s but not 5F6As?
- My latest creation
- Crappy Fender Amp Schematics???
- Qustion about amp chokes.
- How do I know if I have the AA864 circuit?
- Question about amp smoking
- Mesa 6L6GC,"STR 415" good? junk?
- Are power amps the same as heads, in that you have to match ohms?
- Static noise on my Hiwatt DR504... please help!
- Prefered Solder
- Draining Filter Caps Question
- 7591 Questions?
- Power Supply question, B+ and -?
- Speaker wattage
- Fuchs Lucky 7 Hiss....
- Swap 12AX7 for EF-86?
- Souping up a Marshall 2061x 20W amp ?
- what effect do LTP PI plate load resistor values have on sound?
- Point-to-point Wiring
- Ghost notes?
- Best solder iron?
- Anatomy of a Tube Question
- How to bias a 1958 Fender Super
- Standby before or after filter?
- Help with 12AX7 ID
- Mixing a 8 ohm & a 16 ohm cabinet , what setting?
- Mr. John Phillips
- Recommend a good NOS 12AY7 that won't break the bank...
- Tube ID
- Unused half of a 12ax7, what to do?
- Mesa Boogie Mojo Missing
- Ceriatone kit build thread
- Dr. Z MAz Jr. Problem
- anyone know where i can get a piece of scrap basketweave
- Speaker size and treble
- how would this be, weber 10A150 in princton
- Do amps draw power shut off?
- Gibson GA-15 RVT Phase inverter?
- Parallel on V1?
- Problem with Marshall Valvestate
- Weird overtones coming from Superlead
- How much do power supply caps matter?
- Modding an amp for more gain.
- More versatility out of a Marshall JCM 900 SL-X
- Do all amps use Slow-Blow fuses?
- Princeton Reverb mod
- Current (no pun) Manufacture KT66's
- Dead Matchless
- GT Solid State Rectifier Plug
- noise when guitar is unplugged
- TOOOOB Questions!
- Looking for Gold hardware
- Voltage reading trouble?
- Mesa question.
- 6L6 choices are making my head spin . . .
- Which TrainWreck Kit to Buy/Build?
- Tube flash
- Reverb pan cardboard backing question...
- Heater center tap
- Do volume pots adjust current linearly?
- AC30CC2 Master volume
- Salvaging a PT...what to look for?
- BF DR external speaker out: what can you plug in there?
- Cap Terminology (stupid question)
- Tinkle, tinkle...
- Room/Ambient Temperature
- Help! I just destroyed my Pro Junior!
- speaker wattage question
- question about self biased guitar amp
- Amp Noise du Jour...
- JCM900 MKIII output transformer???
- Rivera Chubster 6L6?
- Swapping rectifiers in a cathode-biased amp.
- winged c's in a mesa express 5:50?
- know where to get a hickok 6000a serviced?
- Power tube spark, blown fuse
- Who Makes The Best New Production 6V6GT and 5AR4?
- 6v6 Id
- Differences in 6L6's?
- Tube amp sounds like "frying eggs" ???
- Capacitor Types
- 62 Bassman Tubes
- Biasing a Vox AC50
- Got an old Hammond F-100; guitar amp?
- Ceriatone Hiwatt?
- Is an added FX loop sucking tone when not used?
- Please Help! Tube Rattle
- Fender Princeton Reverb?
- Impedence matching box?
- Bias Pot/Resistor Value
- Old stock EL84 ID
- Jcm 900
- stokes mod, princeton reverb
- Pleaseeee Helpppp!!!!!
- OK FEllow Amp Gurus.... Question
- Palomino V32 bias question
- Power Filter Caps and Polarity direction w/fender
- Another Super Sonic Problem
- Power transformer mounting question *help*
- Describe the difference between a 6v6 and a 6L6
- Baring michrophonics & in refence to orignal mullard 12ax7's
- Traynor YBA-1 Bassmaster - what're some cool mods?
- Just picked up a 70's Bassman w/master vol
- Choosing an Output transformer for upgrade?
- 5881 vs el34 reliability
- Komet fast gradual fix
- Help Troubleshooting: Marshall 1959SLP
- bass control on princeton question
- Power Tube Compression
- single ended amp mods
- Need Tube ID Help Please
- Deluxe Reverb Reissue Tube question...replacement?
- Need help debugging strange noise/performance
- I just got hold a some more NOS tubes. Are the 12AV7's keepers?
- What is my amp doing?
- did my power transformer go ??
- Cleaned Tube Pins and Sockets
- Loose tube sockets...
- Fender deluxe reverb RI problem
- How can I best clean tolex and grill cloth?
- 18 watt marshall clone issue
- Tubes: 12ax7 preamp, looking for a very warm sound
- Recommend a Digital Meter for Bias
- Weak Tremolo SF Vibrolux Reverb
- What Are The Tube Manufacturer Codes?
- What controls the voltage here... (pic inside)
- Advice on how to get rid of fizz
- Looking for Bassman schematic/chasis layout
- Where can I get a 240 volt Soldano power transformer?
- Too much power filtering....
- static coming from my deluxe reverb amp
- Advice needed: '63 Vibroverb reissue
- Fender Twin Reverb extension speaker question
- Can you drive a reverb circuit with 1/2 a tube?
- Marshall 1987x woes.. STILL!
- Reducing trainwreck clone gain?
- New Tubes for a Mesa Mark III... opinions?
- Yikes! Can this be good for you?
- When is it OK to sub power tube types?
- Vishay Dale RN65 resistor max voltage @ 350v? Any Danger to use in plate loads?
- lower wattage, simplified Super Reverb: DR's power section?
- 6v6 touching speaker magnet?
- How do I raise the overal B+ voltage in a Fender?
- Can a "high" gain TR Emerald pro be modded to a "low" gain model?
- Tube ID Clarification
- Anyone here heard of "too much B+ voltage to use a SS rectifier"?
- power scaling for Laney vc15?
- Ampeg Gemini II Bias Question
- champ style build problem
- Plexi bright cap
- Moving a handle on a speaker cabinet?
- Tube Question
- What is the best filter cap for a recap on a Hiwatt DR103 ?
- DRRI Retrofit
- Never Trust a Cheap Multimeter
- Caps need replacing? (photo)
- Latest 5E8-A build and a cool simple mod for it
- Looking for amp tech NW Indiana/Chicago
- 65 BF Bandmaster Ohm? Speakers?
- Caps Questions?
- 250-500pf coupling caps: Best sounding
- TAD 6L6: Difference between big and short bottles?
- Best current production tubes?
- Please explain about transformer size
- Does Ruby make the best sounding reverb tanks?
- 2 Practically Identical Supers... one sounds different.
- think i blew my output transformer
- Best Multi Cap Can for BFPR ?
- clean chording at low volume and my Chieftain is making crackly sounds....
- Late 70's Vibrolux Bias Resistor Value
- ID a Vox re-issue please