View Full Version : Tubes / Valves
- output transformer 9030/3
- Dynaco MKIII: new power cord
- 50C5 add-on amp
- Finished my stereo amp!!
- spl for 300b, kt88
- 2A3 tube review
- Audio Transformer Query
- Lafayette Phono preamp.
- Power transformer help
- EL84 SE question
- Pop/crackle in one channel
- 6GM8 Operating Point
- Propper grounding.
- EL34 plate glowing?
- wavlength audio cardinal
- help for tube noob
- Placing the powertransformer
- Tube audio periodicals
- PSU Question
- AudioInnovation 400
- c3g connections
- 6c33c-b Se
- tube preamp distortion
- What do you guys use to drill holes on chassis??
- S.E Problem.Urgent help Please!
- 6CA7, El34 or 5881?
- svetlana tubes
- 18C51 tube help!
- Power Tubes
- OTL PS question!!
- suggestions for the "lowest noise" pentode
- drd c3g/300b - help needed
- tubecad is back
- Happy birthday to tubes. Happy birthday to tubes. !
- Anyone used...gulp...kitparts.com?
- Grounding the Decware Se84sc
- Rogers Cadet III Schematics
- OTL amp help
- most simple design
- modify eagle el84 for guitar
- Please verify this circuit, is correct??
- EL509 vs EL519
- Heathkit AA-181 schematic needed
- EF 91 / Z77 Amp? help needed for newbie
- buzzing ST-70...plea for help
- Zen se-84cs question............
- Help with transformer
- 211 or EL34Triode?
- bootstrapping two SE transformers into a pp one?
- Gary Pimm's battery biased mosfet cccs
- PSU for SRPP - Voltage or Current Regulator?
- MC-30 rebuild, any ideas?
- ls-37 MM/MC RIAA Phono Amp from diyclub.biz
- Amorphous core transformers only work above 20KHz?
- Help with component layout?
- Output Transformer Sizing?
- PSU worries...
- 6BL7 as output tube for low power SE amp?
- advice for 6L6GC P-P amp
- need some info in a UTC s-16? anyone!
- 2A3 power supply transformer
- Hi-Bass button
- Searching for my first tube amp
- Which phono preamp ?
- potted transformers
- chokes and power supplies
- Heathkit A7 ?
- Best tweeter amp
- Should I use a cathode capacitor in my SE amp?
- Help, Just Starting Out
- JJ Tesla ECC99 spice model
- Newbie to tubes, what can they handle?
- Quicksilver rectifier
- SE amp question
- yaqin mc10k
- Hello again, plus a couple of Q`s.
- My first home audio amp.
- Boostrapping?
- KT88 budget- Sovtek, Valve Art, EH?
- Tube Bass Amp Schematic
- looking for schematic with 6em7 as a driver or...
- Multi-Channel Contol Unit
- TAD-EL84-STR experience?
- OTL question
- Good SET for newbie
- 6n1p simpl(ish) design
- Short list of DIY tube amps with PCBs available...
- Parallel feed (choke load) in output stage
- Few general question for starter?
- winding a simple PP output transformer
- Cats prefer 12E1's
- Tube vicinity heat problems(maybe?)
- Help me design pre-amp PS
- Power Amplifier With EL 34
- psu design problem
- Anyone have info about Jukka Tolonen?
- What do you think about this hybrid amp?
- Power supplies in mic tube preamps
- Hammond 1629SE
- 41 Valve Amp? vs 45
- DeWald M-1200
- Jansen Bassman 50
- Pilot AA-903B Tube Amp
- MC225 schematic needed
- Can you make a +/- supply with valve rectification ?
- Audio Innovations Series 500 problems
- Big, Heavy, Tube regulated Lambda Power supply
- Audio Note DAC Output Transformer Hookup
- Got some tubes, help me properly evaluate them
- current flow, which direction?
- Tube flashes upon turn on, why?
- Odd hum problem
- DHT and resistors in parallel w/ heater
- Presenting the "Fartbottle" deluxe.
- amp mod
- Need info about rare Siemens Cf "post tube"
- Tube defect - What is the problem.
- el84 amp
- VIETA A-215 Schematics
- 6AR6/6098 ultralinear
- Tube kit for beginner
- earthing!!!!!!!!!!
- Heating only one half of a double triode
- Quick question regarding PSU Designer II
- calculate +B in EL34 SE triode conect
- Help with driver transformer
- Tube buffer for a cd player
- VSE riaa equalizer phono stage
- AC or DC Heater?
- looking for a good valve amp to fix
- Best operating point for 7044 and 5687
- S&B TX102 and preamplier stages
- I need help
- 6AS7 Mono Block's
- Filter/Regulator for B+ Supply
- Ecf 83
- cheap but good SET amplifier?
- DRD calculator
- Luxkit A1020 need help!!!
- Sophia Electric™ 300B 2.5V Mesh Plate Tubes
- benifits of auto bias
- KR Enterprice
- Preamp Boards From Hong Kong
- earthing
- Best sounding medium priced EL34 tube?
- 6CA5 Rectifier - B2Spice Model
- Help needed for a 6L6 Push pull amp
- constant current filament regs
- 6SN7 Basics (Newbie)
- Anyone tried the EH fat bottle 6CA7?
- TJ Tubes
- My tubes are going down. HELP !!!!
- Tino Zottola...where are you ?
- Lilliput amp
- filament rails
- Ss Diodes??
- Tube mic preamp
- CCS Filament Regulators for split filaments
- Quicksilver 8417 power supply caps?
- Audio Research LS7
- simple valve preamp
- valve preamp
- stand by switch or not?
- Omega Grand 6 and which amp?
- Line amp to speakers
- a bit more bass?
- Output transformer application help please.
- 5687 pre...some problems
- Recommendations needed for designs of PP pentode strapped as Triode
- KT88 push pull noob questions (sry)
- Need help identifying Stromberg Carlson Amp
- help needed diagnosing Grounded Grid power supply
- Building a tube Model????
- EL34 best for triode strapping ?
- Subwoofer amp
- Replacing Valves
- help me on 845 scheme....
- Help valve newb salvage some old TV tubes
- Cathode follower distortion results
- Bullet Proof 6L6GC Recommendation PLEASE
- newbie recomendations please
- NOS Tubes
- Audio Research CA-50 tube rolling
- OT on Decaware SE84C-S
- Change PP Amp Into Phono Pre?
- pl84 ore el84
- VTL Compact 100 Monoblock x 2.
- Battery bias a 6SU7 in the 300b billies
- Speaker impedance roughly 6 ohms, 2A3 SET...
- B2 Spice SE tranformer parameters
- Determining cap values (old radio)
- thoughts on 300b operating points with 3k output
- Grounded Grid wiring question
- PP-Triode , PP-UL , PP-Pentode-strapped-as-Triode
- Found some EC8010
- SE PX4 or PX25 amp, anyone built one????????
- HAL-O Damping Instruments
- An intriguing 6S45P direct coupled 300B amplifier
- difference between Cayin and Jolida
- 417a line preamp help
- kenwood trio el84 push pull schematic
- Any comments on this design?
- Amp for speaker testing
- Shielding preamp power supply
- Troubleshooting EL34 push pull amp
- amp input volume
- What Mullard 12AX7 is better?
- Universal audio / Avalon mic pre schematics
- Since transconductance amps has become so popular lately...
- Mecanical PSU hum
- help i.d. this amplifier
- Question about a hybrid PSU design
- 35Z5GT half-wave rectifier
- Riviera 725 guitar tubes amp
- Best place to use 2 Jupiter Bee caps in tube amp?
- what rating for diode of 450Volts DC
- Telefunken 6L6GC ???????
- Why are my amps doing this?
- How to calculate the gain of an input-driver stage?
- 6L6 vs EL34
- protect your amps
- Snap Ring Octal Sockets
- Suitable operating point for 6SN7 as a differential driver ?
- Suitable rectifier
- 6N1P & SV83 mu stage driving 845?
- Has anyone built a transformer coupled preamp?
- Circuit diagram for RCA vintage 6BQ5 amplifier?
- Driver valve discussion
- Help to choose the tubes!
- Why hum in one channel only?
- DC heater noise WORSE than AC
- Rdh 4
- 900v B+ Silly time.
- tube rectifier arrangement
- Matrix Amp?
- Dynaco Stereo 70 amplifier
- Ultimate power switch?
- AC or DC current for 300B and 2A3 tube filaments ?
- 0.1uF @ 3000V Ceramic?
- Power Triodes in current production
- Anyone in the world identify eico trans?
- Mullard 5-20 in triode mode
- THX certification, or integrated near THX Quality,
- Feedback resistor on Baxandall tone stack?
- SE Pentode or PP Triode ?
- how does one "voice" a tube amp
- Musical fidelity Nu-Vista
- Tube substitutions in Heathkit W5M
- PSUD2 question
- 6L6 class A P-P CFB amp