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Push-pull 6A3 amp, By Ron Bales 212 mono amps by E. Billeci a b c d e f g h i j S.E. 250tl amp modified to 211, and then 845, a, 6C33CB stereo amp 845 PSE amp Stereo 845pp amp 300b stereo se (side) 211/vt-4C stereo PP amp Sato horns by E. Billeci 6BM8/SV572-10 S.E. by Chris Beck 300B mono amps by Peter de Bruyn. 6J5 - 46 (triode strapped), Tango TC160/15, plate loaded choke, - 300B - Tango 6C33 mono amp by Fabio Camorani 10Y/801 amplifier by Johannes S. Chiu "Darling" amp by Timo Christ 1626 single stage. Sowter SE02 OPT. PP 300B mono amps by Brian Day PP 845 mono amps by Daniel Dicker (circuit and power supply) S.E. VV-30 Stereo amp (417A - vv30B) by Jim Dudley / Ralph Power S.E. 801A mono amp by Thomas Dunker Copies of the Altec 816 cabinets done inside and out with furniture grade red oak veneer and plywood over MDX. By Bill Eckle EL-84 mono amp and 12AU7 preamp by Stefan Figiel 70 Watt mono Amplifiers By Rudy Godmaire of Canada. Plitron toroidal output and power transformers, double push-pull of EL-34 power tubes, ECC82/12AU7 input. Menno van der Veen designed output transformers and circuit. No feedback local or global. 30 watts triode, 70 watts ultralinear. See his site at http://www3.sympatico.ca/r.godmaire Finn Hammer's Tesla Coil 36" horns with "Iwata" curvature by Giuseppe Iannuzzi Mono PT15 AB2 amplifiers by Corne Janssen VV-30 S.E. mono amps , and 300B mono amps, by Matt Kamna S.E. 811 EC 86 front end, 6BX7 driver, SV811 power tube. No feedback. by fredlaine@wanadoo.fr 845 S.E. stereo amp. PDF schematic. By John Levreault S.E. 6B4G "Loftin-White" amp and Push-pull stereo 6B4G amp by Torbjoern Lien 212E S.E. amp, S.E. 300B mono amp, S.E. 50 stereo amp, and 6C33 OTL amp, by Mick Maloney Mono s.e. 2A3 amplifier and 300B mono amps (signal chassis shown) by L.D. Moore Stereo S.E. VV-30 amp, Stereo P-P. 6B4G and Stereo S.E. 45 by Ralph Power S.E. 845 mono amp by Stephane Puechmorel S.E. 845 mono amp, Euridice WE-437A pre-amp and S.E. 211 mono amp by Robert root 845 S.E. / 845 P.P. mono amp amp (schematic), Phono EQ, (schematic) and CD tone control mono amps (schematic)by Susumu Sakuma. "Tube Tasting" amplifier, Filament Layout By Greggo Sanguinetti ( Joking around, as usual! ) S.E. 300B mono amp (example of a current regulated filament) ( input trans.600:10K - 205F - interstage trans. 5K:5K - 300B - OPT 3K:16 ). S.E. 205D mono amp (schematic), 71A push pull mono Phono Equalizer amp (schematic) By Jun Sato. Speakers, 2-way, VIFA Drive units (93db/1W/1m) 6dB x-over. - EL-34 Single Ended Integrated Amplifier NFB, Uses 6SL7WGT, parallel wired, EL34 JJ Electronic at output. Also, MC phono stage, NFB, 12AX7, ECC83, ECC82. - SV572-10 Single Ended Power Amplifier NFB. -211 Single Ended Integrated Amplifier NFB. New! 300B SE amp By Samo Selan S.E. 300B mono amps by John Sherwood (http://www.homestead.com/sparkgap/amp.html) VV52 amp, power supply and 6SN7 pre-amp Amp topology : SE (Shunt Feed/Parallel Feed) Pover tube : VV52B (500v@135mA) Driver #2 : Sylvania 6Y6G (Triode connected) Driver #1 : Amprex 7788/E810F (Triode connected) Custom Sowter opt (2.5K) Interstage #2 : Sowter 8423 Interstage #1 : Lundahl LL1160 Plate choke : ElectraPrint (50H)*Power Supply: Power tube Rectifier : GZ37 X 2 Driver Tube Rectifier : GZ32 X 1*Preamplifier: Topology : Cathode follower, Tubes : Sylvania 6SN7W X 4 (One section of each used only) Rectifier : GZ37. I later axed the 6Y6's for RCA #46 (dual grids) by Kenneth J. Shum ( kjs@kie.com.sg) of Singapore. 'Onken style cabinet, 1 inch Marine Ply , W/ Altec 515B. HF are tar filled Altec 1005B with professional Meyer Sound compression drivers. A VT-4C is shown beside the HF horn for a size perspective. P-P 300B mono amps , and also P-P VV52's, williamson circuit, Heath W6 outputs, stainless steel chassis. Input: 6CG7 > 7119 or 6900. Soon: Lundhal 1660 interstage transformer/ 7788. By Mike Southard P-P GU32 amplifier (also called 832 in the USA) 10 watts class A1. by Rob Spigt of the Netherlands. 1625 PP stereo amp (triode wired) by Thomas Tang 71A SE Power Amp by Joel Tunnah of New York City, USA. Circuit: two cascaded choke-loaded '01A triode stages driving a single 71A. All three stages are battery biased. The "Aquaruis" speaker, by Koen Vaessen. website: www.edge.be/vaessen Horn Speaker System. 80 Hz exponential horn, 80hz horn uses 10" driver, and is 105 db@1watt to crossover. The tweeter crosssover is 1350hz, 18db. by R. Vance 6L6GC PSE stereo amp. (parallel single-end) direct coupled 6SN7 input, Output transformers are One Electron. By Mark Weaver (U.S.A.) 813 SE amp. 45 watts using 813 transmitting tubes by Robert Willis. EL-34 S.E. parallel amp by Alex Yeung If you have a contribution, send a JPG of your hand made audio and your name. A description of the circuit, country of origin. This page does not recieve regular updates. |
