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Circuit from the Hashimoto Site1550 viewsHere is a circuit of a SE 6AQ5 amp using a 6AU6 driver and Hashimoto transformers.
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JELabs 300B circuit1351 viewsHere is the circuit as found on Angela Instruments web site under the HOWTO: section.
Angela Site
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Sony Stereocorder 6AQ5 amp1201 viewsSchematic for sony tc521 6aq5 based r2r.
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109 0946993 viewsMan, I just love the way these sound.
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Radiotronics 1955 4.5 SE 6AQ5 amp pdf981 viewsPDF from Radiotronics 1955 for building a 4.5 watt SE amp using 6au6 and 6aq5
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119 1998844 viewsEvery thing comes out the front on the 846B's. So first lay speaker on its back. Taking care to use a spacer board near top to keep the attenuator off the floor.
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109 0948832 views
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120 2001822 viewsThe crossover. While I had the speaker apart, I decided to clean the attenuator.
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Ole NUmber 3 Circuit806 viewsThis is a schematic that I drew using notes made during building and benching this amp. Hopefully there are no major errors. Will draw up the PS next.
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109 0947793 views
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Parts790 viewsWelborne chassis, Hammond 1627 OPT, Angela Power tranny, PIO coupling caps, Hammond chokes and ASC oil capacitors.
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Sony Stereocorder 6AQ5 amp780 viewsHere is the schematic for the sony tc521 R2R. Used the OPTs and power transformers for my project.
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743 viewsFisher X-100-A Schematic 1 of 2
*Note* It has been pointed out that this may actually be schematic for an X-101-C. Compare schematic to your unit carefully.
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119 1999733 viewsThe 811 horn
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616 viewsFisher X-100-A Schematic 2 of 2
*Note* It has been pointed out that this may actually be schematic for an X-101-C. Compare schematic to your unit carefully.
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120 2003615 viewsAttenuator Exposed!!
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Another underside shot578 viewsAnother shot of the underside
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565 views
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120 2002555 viewsNow remove the metal cover over the attenuator by gently bending back the little metal tabs.
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6AQ5 amp at work532 viewsHere is a shot of my 6AQ5 amp at work. Unit now sports a nice new knob on a nice new pot. Found some nos RCA 6aq5 tubes and fisher 6AU6 tubes. Unit is using a MAC with itunes as a source. All software is loaded on MAC using Apples Lossless compression. Am using a small pair of Entergy speakers on stands.
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522 views
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120 2004518 viewsGently rub down the coil. I used contact cleaner and a Q-Tip. Rotate the attenuator back and forth vigorously after cleaning.
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516 views
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MX5050 Service Manual508 viewsWarning 14Meg in size
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499 views
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6AQ5 underside464 viewsHere is a shot of hte 6aq5 amp under construction. Kinda confined, but everything fit.
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463 views
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Marcel & Clovis457 viewsHere is the Valve artical on the Marcel & Clovis PP45 amp. If I should not be posting this PDF, then please contact me via AudioAsylum under the ID of Ciscokid and I will remove this artical from my site.
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Soldering done on one monoblock451 views
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443 views
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6AQ5 amp440 views6AQ5 amp shortly after completion. Have since replaced the pot and put in some heat shielding around the PSU resistor.
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After all holes are cut438 viewsAll holes are cut and sockets are mounted to one top plate.
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436 views
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Hashimoto OPT429 viewsPicked up a pair of Hashimoto output transformers while in Tokyo for the express purpose of replacing the Hammond trannies I had built my monoblocks with.
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Up close to PSU caps428 viewsHere is an upclose shot of the PSU. I have since installed a heat shield between the power resistor and power capacitor.
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Cutting426 viewsCutting big hole with adjustable hole cutter.
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425 views
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Top plate with mounted components423 views
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Hashimoto H-20-3.5U OPT420 viewsHashimoto H-20-3.5U OPT installed on one of my monoblocks
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Alps blue414 viewsNote, not only did I wire this wrong. Should be Input, output and ground. But I discovered later that the unshelded red wire would come back to haunt me. Always use shielded signal wire.
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