| Search results - "amp" |
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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Bread board230 viewsHere's where I breadboarded my amp. My first attempt was a PP 6b4g using an interstage and ecc99 drivers. Well, I was less than thrilled with the sound, then I remembered reading about parafeed using a CT choke. I just happed to have a pair of MQ 17173 CT chokes and so I gave it a try.
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A pair of 6AX4GTB damper diodes117 views
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Completed AMP160 viewsJames JS9611 Power, James JS4016 Choke, MagneQuest B21 OPT, MagneQuest 17173 CT Choke, Lundahl 1660 PP Interstages and Edcor 10k:10k Input trannies. Cool smoth sound.
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Business side of the amp109 views
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JJ multisection cap132 viewsWhen I breadboarded this amp, I used big oil caps in the PSU. However, I could only squeeze the JJ in the actual amp when I started building.
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COmpleted amplifier using a chassis recoverd from my work.269 views
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Mullard 6L6GC64 viewsHere is a Mullard 6L6GC that I pulled out of a Heathkit High voltage bench power supply. There were a pair and if they test good, I plan on probably using in some sort of SE amp.
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Harmon Kardon Citation II Amp161 viewsMassive.. I purchased this amp and matching preamp from an audio buddy. Unit had several issues but does play. Issues included lots of noise. After opening it up, I discovered a few issues, fuses in the OPT cathodes, one of which was open, wrongs sized OPT cathodes resistors, wrong size and type of capacitor on the driver tube screen and a few other things. Ordered the Jim McShane power supply kit as well as the two capacitor kits.
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Citation I100 viewsThis is my Citation I preamp I acquired from an audio buddy. I plan on rebuilding using the McShane kits at a later date.
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Capacitor clamps82 viewsBecause of the tight space between the clamps, I cut down the tabs as much as possible using a grinder.
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Capacitor clamps82 viewsThere is very little room between these clamps.
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More ground buss70 viewsThe end of the buss is terminated into the terminal strip. Also, while not part of Jim's basic power supply kit, I had in my part bin, a 50x2 F&T capacitor to add to the power supply.
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Other amp291 views
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One amp246 views
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Both amps ready to solder.269 views
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Both complete amps295 views
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Other complete amp265 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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6AQ5 amp playing tunes.410 viewsHere's the amp shortly after completion playing through some full range speakers that came out of doner R2R.
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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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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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Headphone amp in my Accuphase C200 preamp.137 views
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6AX4GTB Damper Diodes45 viewsThese puppies can glow!
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6AX4GTB Damper Diodes44 viewsAll lite up!!
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Ampex OPT65 viewsOPT from Ampex two channel 6550 rack mount amplifier.
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Ampex OPT59 views
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Ampex PP 6550 Amplifier94 views
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Ampex PP 6550 Amplifier73 views
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Ampex Choke72 views
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Ampex Power Transformer89 views
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Ampex Choke68 views
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Ampex OPT91 views
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Eico ST70 and Eico Tuner64 viewsCool old Eico ST70 tube amp using 7591 tubes in push pull. Old non stereo Eico FM tuner.
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Ampex PP 6550 Amplifier109 viewsAmpex PP 6550 Amplifier
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Ampex PP 6550 Amplifier118 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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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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Finally Solved my hum (ground loop) problem39 viewsFound this "drake" 15k to 15k bridging input transformer in my parts box and decided to give it a try in effort to solve my hum (ground loop) problem. Amps were quiet with their grounds lifted. However, I never felt real safe doing the lift. Now, with the input transformer the hum is gone :)
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Under side of old AM radio4 viewsHere is the under side of the AM radio. It appears to be a single ended 6aq5 amplifier. Choke input supply. I plan to replace the caps as part of the restore.
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