- Made the local Feedback Switchable... question:
- Help with SS Ampeg Head trouble....
- Earth problem in Guitar cause problems in Amp?
- is speaker cone-cry temperature dependent?
- 1940's Amp ID Help
- help with misbehaving bassman RI Ltd.
- what difference does dope make
- Help with ValveKing 212
- Fender tweeds - why short the secondary...
- Bad Sounding Plexi
- need amp tech ann arbor/detroit
- Getting more Mid control
- Orange won't turn on! Help!
- Mojo769 hookup
- More presence out of the presence control...
- Blues Jr-replacement tubes
- Super Reverb hiss
- New Production 6L6gc with largest pins?
- Power supply Question/Deluxe Reverb
- troubleshooting Fender FM 212R Guitar amp- It's a kid's amp
- Plate Voltage eluding me !
- Amp hiss...any thoughts?
- Fender Studio Bass Amp Volume Question
- Vox Custom Classic series amps/ changing speaker question
- Amp Bulb
- International 12AX7?
- Early Breakup on '95 Blues Deville
- 12AX7 DRRI question
- Variac question
- 6L6 tubes in a Deluxe Reverb
- bad cat trouble
- Matched quad = 2 pairs w/ same bias point?
- Blown vellocette transformer
- Broken Trace (Pics!)
- Dying OR120
- Suggestions for 65 Fender Champ Tubes to try
- Broken Hiwatt... Suggestions?
- So if you have an amp with 8 ohm and 4 ohm out can you use both?
- bad power in practice space
- One tube getting REALLY hot!
- Power tubes, help!!!
- 16 ohm minimum impedence question
- individual bias pots for each power tube
- Tweed Champ Has No Top End
- Ampeg Gemini sounds like a ring modulator
- really bright gibson skylark
- Output transformer & Rectifier Tube Question
- Quick dumb question about wattage
- Do you really need to bias your tubes?
- Shunting highs: What's your favorite approach
- So if I'm already faced with the issue of old wiring... (2 prong to 3)
- Bias Monitoring Question
- Reverb send & receive as an effects loop
- Vitamin T caps in Fender circuit?
- FX loop
- AC15 Heritage
- Help - Blowing Fuses!
- Best way to install adjustable bias in 5E7 bandmaster?
- Bias on a 93 Blues DeVille
- testing RCA 6l6GC tubes
- Ceria OTS schematic?
- Noisy Marshall Super Lead
- Fuse blows when amp is moved - Ideas?
- First time bias help
- Random Squealing Noise
- Can you identify this unmarked EL84 tube?
- Fender Supersonic Bias...I smoked the R140
- NEED YOUR HELP . Marshall Jcm2000 TSL 100
- I just troubleshot and fixed my amp
- help trace elliot problem
- Trouble emission testing Russian 12AX7's?
- Mexican radio on my VT-40....
- NOS Preamp Tubes VS NOS Power Tubes...
- Slower Tremolo on BF?
- Cap canister instead of cap stack ?
- TAD Tube Problems
- Tweed Princeton 5F2A questions
- New OT...
- Speaker swapping
- 100 watt head with less wattage speaker
- Champ 12 - which circuit?
- Fender Super-Sonic MODs
- Isolation transformers....
- help - creating head out of combo!!!!!
- Kustom Defender Bias Question
- 5e3 build project-need some help pls
- Marshall 1974x Transformer Hum (60 cycle hum)
- replacement for NOS Philips 7581a's
- Vintage Ampeg Repair Tech Needed - Recommendations Please?
- OHM's question
- Interesting Fender AB165 Bassman -> Express Mod
- Power Amp question
- Vp=480V on new-production 6L6es; OK?
- Oxford speaker ?
- solid state question, Fender Pro 185 problem
- issue with '66 bassman
- CALLING AC30 TBX (korg reissue) owners to council!!!
- filter caps for pcb amps
- "Out of the Dust" Tubes
- Funny what you find if you take a close look...
- Signal Generator Sucking B+??
- need the straight dope on Weber kit pots and tube sockets
- How would you go about tightening the bass response up in an amp?
- Hi, I'd like to add a bias pot to a Mesa Boogie Express.
- '68 Fender Deluxe Reverb: New Reverb Trasformer
- 68 Super Reverb: just not right....
- Changing tubes in Pro Junior
- Champ Kit
- orange ad30 htc keeps blowing main fuse, please help
- Blues Jr Speaker install
- Pot for red-knob Twin- where to find?
- 71 sf Vibrolux issue's
- Using a Y connection to use the pre amp in my head to supply sound to 2 power amps
- My combo speaker cable is too short to run my attenuator!
- Budda SD18 making crackling noise
- Gretsch 6162 reverb tank dead
- Bad Transformer
- Resistor/Cap kits available?
- Vintage HiWatt re-bias, need help
- Power rating speakers
- Replacement tubes for Blues Junior?
- Cracking in the Fender HRdeluxe
- US amps with step-down trans in Europe
- AB763 Low Humm Help
- VC30 output tranny
- Fender Super Champ XP - speaker mounting screws dimensions?
- JBL Pro 15" Model- 222OH ???
- Gretsch 6149 Reverb Schematic?
- JCM 800 won't bias
- Biasing NOS Philips ECG 7581A (6L6 variant)
- Fender 1962 Deluxe Wiring
- Two Tubes Redplating (See Inside for Free Bonus Symptoms!)
- Id tube from etch code ?
- Princeton Reverb Problem
- Allen Accomplice: Pre-amp or Power Tube Suggestions?
- Power Tranny for Bassman (sort of...)
- Bassman Rectifier tube. Which one?
- Partial Ceriatone OTS schematic
- Removing a reverb spring???
- Art of Vacuum Tube Fabrication
- Need Help! BFSR with blue glow on power tubes
- Switching between filter caps
- Which High gain pre amp tubes
- Pedal/Amp problem 60Hz B~U~Z~Z
- Need Tech Help
- Selmer Treble & Bass issue
- In search of input jacks for Fender "The Twin"
- Converting a Marshall 9100 for EL-34s
- Combo and Cab Ohm Question
- Using the different inputs in LTP inverter?
- JCM 800 boosts when volume at 7?
- Recommend me an iron for doing chassis grounds
- Troubleshooting help needed - Fender DRRI
- Problem biasing KT88s
- Egnater Tourmaster Footswitch Jack Replacement
- EF86 Vox/Marshall Clone Issues
- Fender Prosonic Combo Reverb Hum
- +B voltage of the Drake 789-87 PT
- out of phase??
- Hiwatt PI
- Tube Suggestions - V3
- 4x10 ohm questions
- Blackface Princeton Reverb Cabinet Plan/Dimensions
- Does dropping plate vt affect line level fx loop
- need Ampeg B-15 layout or picture
- Bias Tools. Today I decide.....
- 10uf 450V caps?
- Issues with Sovtek MIG 50
- "Splatty" sound in ODS-style amp?
- Marshall JCM 900 Dual Reverb questions
- Volume fluctuations - two amps doing this.
- New to 7591's - how should they look when running?
- Mesa Nomad 55/ Transformer Upgrade?
- Wattage Question concerning the Peavey JSX
- blue flame- 6973 tube!
- strange reverb hum ab763.amp has been sent twice to tech
- SDGvintage kit experience?
- 65' TRRI. Reverb humming.
- 5F4 Super questions
- Attenuation of a 15R speaker
- Unity Gain?
- Wiring a reverse phase speaker cable
- Help! '65 Ampeg Rocket2 began to 'hum' today?
- Bias isn't high enough, but the pot won't go higher
- Reverb problem on Gibson Falcon
- Power tube ?
- Caps needing to be powered up how frequently?
- Biasrite issues
- Changing plate resistors on preamp tubes
- Mystery box of Tung Sols...
- Hum on the FX RETURN on my Budda SDII ??
- The Use of an unknown Transformer??
- Bias problem
- Static from Deluxe Reverb
- New discussion site and webzine (Old School Guitar)!
- Thinkin' about having someone do a build ala Fender
- best new GZ34
- Bluesbreaker re-issue suggestions?
- Reverb tank issue on my Matamp
- JCM 800 Volume Issue
- Yet another fuse question
- Dealing with the screens on a 5E7 (a question or two)
- Bassman 59 ltd help
- Fargen Blackbird blows fuses.
- dumb speaker question
- Marshall JTM-60 squealing, and NoVA amp techs?
- Advice on Low Priced (defective) PA Head?
- Biasing my Marshall messes with my mind...
- 3 Prong Plug in Europe
- Resistor Question
- Deluxe Reverb Volume Problem
- SS Rectifier plug in Bluesbreaker re-issue?
- Brown deluxe bias issue
- MIJ Raytheons???
- 1/2 blown OT? Just confirming
- Anyone have any experience with the Raytheon 12AT7?
- Pro Jr Issue, advice?
- Tube amps can kill you!! I understand...
- Tiny Terror help---again
- PA Question
- Question on screen grid resistors
- Parkhead Marshall Mod does it work?
- My Marshall is in trouble.
- Marshall OEM 12ax7-what are they?
- Safe to run an old deluxe reverb transformer at 4 ohms?
- Mackie 808S mixer/amp question
- components coming loose?
- Vox question - Power Switch and question - AC15CC
- Ampeg Rocket Octal Preamp Tube Replacements
- HRDx power tubes
- Tube swap question
- amp intermittently cuts out
- has anyone measured/charted the temp. characteristics of CC resistors?
- Vintage amp repair anywhere
- Is it possible to get 50 watts out of 2 el84s?
- Allen Old Flame Dies Suddenly
- Master volume not working question.
- Help please: identify speaker?
- blues jr issues
- Sensitivity of Vintage Jensens?
- Burn in: What do you do??
- Where would you look first?
- Full winding - MM in Low powered Twin
- Out of Control Model Train Sound from amp...
- LED Wiring Guidance for Single Button FSwitch
- Can Power tubes go microphonic?
- Bassman 1964 blonde what has been replaiced?
- Convert 8ohm speaker to 16???
- Preamp tube change-outs
- Reverb bag & tank installation help