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- Test circuit for 35W plate dissipation on KT88
- Test circuit for 35W plate dissipation on KT88
- SE topology
- Hammond A series PP OT
- Craftsmen C550 Sell Mine Buy Yours
- Vellman tube kits
- Need to buy good coupling,by-pass caps, & resistors
- Kenyon transformer S-510426
- SE Output Transformer winding questions
- New audio transformer manufacturer
- SE OPT rewound secondary -- part II of the story
- Gilbert Cell AM modulator and demodulator.
- Using two taps of OT secondary
- Re: 8051 Microcontroller
- AM generator with 3 transistors and tuned RF transformer.
- Self Split Output Stage
- I-177 Tester Data
- HP 606A mystery attenuator fine adjustment figured out.
- Re: 7591A tubes
- Re: Distortion reduction in diode+C+R detectors
- Help identify connector
- Diode detector R and C value calculations.
- Free Online Calculators for Engineers - Electrical, Mechanical, Electronics
- HP 333A schematic wanted.
- HP333A examination and impressions
- Disappointment with Audio by Van Alstine
- Brown base RCA 5692's?
- Brown base RCA 5692's?
- L/C tester recommendations
- Lord Valve
- Hitachi (Marantz) 50TB1 CRT testing/specs
- Hitachi (Marantz) 50TB1 CRT testing/specs
- MBT fitness shoes can pamper your feet
- Fred Nachbaur's website
- The Joys of the New Year
- Pioneer SM-B200A
- New Year's Resolution -- Working on my draft
- Toroids, Plitron and Bryston... a Canadian nexus
- Yamaha YTS-875EX Custom Tenor Saxophone.....$900usd
- Tube amp "singing" when no output hooked up.
- jobangebote , personalvermittlung , Asphaltbauer Asphaltbauerin , arbeiten im ausland irland , außendienstmitarbeiter , arbeiten im ausland berlin , Winzer Winzerin , it job ausland , jobboerse im ausland , Brieftraeger Brieftraegerin , + + + +++
- Audio Research VM220 and VT200 amps have serious design shortcomings......
- Hammond OPT - information wanted
- 6j7 driving WE91 type amplfier
- Those WERE Hammond days!
- Re: FA: 92 lbs integr. Tube Amp with Phono MM/MC * LUA Sinfinia
- HT Delay Switch
- Looking for speakers for a vintage Pilot stereo
- Replace projector globe with resistor?
- Low Cost Constant Current Solution for Low Resistance Measurements
- How The Ancients Measured Small Electrical Resistances
- Small Fully Integrated Amplifier
- I have never made a transfomer
- Bootstrapped Driver
- Bootstrapped driver? PFB? stabilty?
- Determination of Maximum Positive Feedback in Bootstrapped Driver
- 6LU8 SET or SEUL Amp
- parallel chokes in a power supply
- Bootstrapped Driver- More
- Some Notes on Heater Surge Current
- The Inverted Triode...for the curious & others
- WTB: Looking for 6DA6/EF89 tubes -- Need 4
- fixed bias circuits and pot wipers
- Distortion products
- Re: Distortion products
- Re: Distortion products
- Re: Distortion products
- Cheap B+ boost
- More On The B+ Mod
- Re: Cheap B+ boost
- Tube replacements for Icon Audio MB 845
- Re: Some Notes on Heater Surge Current [Long - really HIGH power tubes]
- Valve Rolling Myth?
- Re: Some Notes on Heater Surge Current [Long - really HIGH power tubes]
- Re: Valve Rolling Myth?
- Bad wire
- Re: Valve Rolling Myth?
- Let me introduce myself (tube related).
- Re: Bad wire
- Capacitor soakage and PIO caps
- Do People Ever Collect Tubes?
- Re: Bad wire
- Gamma Rhythm amp valves
- Re: Some Notes on Heater Surge Current‏
- Why are vacuum tubes still used in audio amplifiers instead of solid-state transistor
- Some Applications of Skin Effect at Power Frequencies
- Re: Why are vacuum tubes still used in audio amplifiers instead ofsolid-state transistor
- sylvainia 6ca7 WTB: two pairs
- Guitar Amps without Isolation Transformer
- Which amp to restore next?
- Re: sylvainia 6ca7 WTB: two pairs
- Re: Why are vacuum tubes still used in audio amplifiers instead ofsolid-state transistor
- NFB windings, was there a US style and UK style?
- Re: NFB windings, was there a US style and UK style?
- Re: NFB windings, was there a US style and UK style?
- Re: NFB windings, was there a US style and UK style?
- Re: NFB windings, was there a US style and UK style?
- Choosing a fuse
- Best tap for NFB?
- Re: Choosing a fuse
- Inrush Surge pics
- Acoustical/QUAD's Bean Counters?
- Market for Used Tubes?
- A Hill of Beans
- The QUAD I amplifier
- Re: The QUAD I amplifier
- Re: Newbie Question about Replacing Tubes
- The QUAD system
- John Byrns Phono Oscillator Hum Problems
- QUAD [1] Original booklet reproduced at Jute on Amps
- QUAD Modes
- QUAD-II OPT core&winding details.
- VLF stability in Williamson-type amplifiers
- Fisher X-101 repair and restoration?
- Patrick T's recent post on NFB in AA5s
- Lets Improve John Byrns 25L6 Amplifier
- Fixing a hum loop in a WA-P2 pre-amp hook-up to a power amplifier
- Someone raves about 50 grand....
- Fracking is hated in Oz.
- relays for B+
- Overvoltage protection
- the greater important is actually
- British vs. US amplifiers, articles?
- AM detector, part 1
- AM detector, part 2
- AM detector part 3, 4, 5, 6, 7, 8, etc.
- Compansated AM Detector, for the Faithful
- Hewlett Packard Journal Link
- AM detector, part 3
- Phase Locked Loop with vacuum tubes.
- FS: RCA 580-D 400ma tube regulated HV supply
- DC Link film caps in power supplies
- AM synchrodyne radio with PLLexplained.
- Is Choky still around in this forum?
- I will KILL AMERICAN CHRISTIAN TERRORISTS George Bush Jr, Dick Cheney et al
- Is Choky still around in this forum? (no text)
- Is Choky still here?
- Re: Oddball Raytheon Subminiature QF-721 tubes
- Europe as investors fretted about a key
- Re: The AM varicap
- Re: VT 105 ( ML6 ) ( AMPLIFIER )
- Anode dissipation formula for AB amps
- Replacement of IRF730 for Sonic Frontiers SFL-1
- anyone know this old portable mic audio amp [RCA TA-125]
- FA: Gryphon Guideline MK2 * Pure LC Silver Cable By Siltech
- OT Is magnetic extra magnetic shielding required inside computer?
- 'Twin Triode' AM Transmitter
- Re: 'Twin Triode' AM Transmiter
- Re: Good as gold tube!
- 1st try kt88 amp
- 2nd try kt88 amp
- H.H.Scott of audio fame
- H.H.Scott of audio fame
- 3rd try kt88 amp
- Restored Antique Radios FS
- Checkin in. So how's my problem child doing these days?
- Can someone help to identify this prewar capacitor?
- Isolating bench test equipment
- Single ECH35 Synchronous AM Detector
- woodside radford
- Monobloc pre-set gain pot value
- Eico 902 Distortin Analyzer Manual Needed
- HP 201C Audio Osc coupling cap .5 900vdc
- Brook 10C's
- looking for realistic 33-1085 mike manual
- KT90EH review and relability.
- Sun to set on valve era
- Need catalog Lord Valve
- Re: Is this really true-Ebay Claims
- Sun to set on valve era, 'Twin Triode' AM Transmiter Nexus
- IBM Radio?
- ³Twin Triode² transmitter background information
- Building a new shortwave tube radio
- The finest interconnect money can buy - and it's not that expensive!
- Brook 10C.
- Hammond 1682 OPT for 4 x 807's?
- Brook 10c servo bias
- Micamold capacitor
- Restored Antique Radios FS
- Jones's servo bias
- Re: Sure, pal!
- Bartolomeo Aloia BA211
- Bringing up my hifi after 3 year storage
- scans available of GEC application notes
- Question about Circlotron output section
- Anyone know tube like that?
- E130L or 7534 tube
- The Ether
- Circlotron
- Re: On the late William Z. Johnson
- Fun with Gort
- What's in a name? Changed!
- McIntosh MAC-1500
- What are the differences between DRD and Loftin White?
- Re: Once upon a midnight clear...
- New email Address
- Re: Audio Precision System One Dual Domain Measurement Systems
- Western Electric 300B Matched Pair
- Next Project
- My take on the Brook 10C Auto Bias
- FM Transmitter
- KT120
- Remembering Fred Nachbaur
- Williamson Resources:
- 7377 tube also known as QQE04-5-what was it for?
- Which KT88 PP should I go for?
- GEC 400W UL, what a high power design??
- parafeed or series SE output
- Anyone familiar With Jensen A640 T220 Crossovers?
- Using thyratrons for an amplifier
- EL156 SE
- Ping: CHOKY? Are you here?
- High power guitar amps are a dead issue
- "Dollar Days" FM Transmitter
- The best AM receiver
- KT120 tests, compared to 6550.
- Audio Classics Is Not A Good Sport
- 300B for driver??
- The unity coupled McIntosh circuit
- New driver board for toob amp
- God The Father 9-4-72
- KT120, more test results.
- 829B like audio amplifier?
- Sources
- 6DW5 vs. 6BQ5/EL84
- Triplett 3413-B
- Voltage Swing of D3a??
- Valves rule! (So do tubes!)
- Are any Repub Candid Ates into tubes?
- EICO HF12 amplifier component
- Well, Mr. Marshall, are you happy now?
- FA: UTC HA-107 AUDIO INTERSTAGE TRANSFORMER (Fully-Tested)
- SE output transformer with no air gap and low flux??
- Placement of components in parafeed......
- EL84/6BQ5 type?
- 1,500 vacuum tubes for the first electronic computer.
- heater transformer for 5R4
- IBM in 1953
- Re: Are any Repub Candid Ates into tubes?
- EL84/6BQ5 failure
- PV JSX Guitar Amp
- Regen
- FA: 3 SPRAGUE 600v .22uf BLACK BEAUTY Tube Amp Capacitors **NOS**
- Croatian Triode Festival 2012 Bjelovar 11-13.05.
- Tube database gone?
- Restored Antique Radios FS
- Also can be found in classified
- Life In The Australian Army
- New member, pentode g2 operation question.
- http://www.nj7p.org/Tube.php is back!
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