Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Wednesday, May 25th, 2022
Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

For sale is a vintage, cute. Lafayette LA-214 Tube Stereo Amplifier, EL84/6BQ5 Single-Ended, All Vintage Tubes. I tested the amp (using headphones because the speaker posts are kind of rusty and questionable). All tubes lit up OK but I only get music on LEFT channel, with cracking noise sometimes when I adjust the knobs. Sometimes the signal simply got cut off. So, the electric contacts are not very stable. I then swapped the power tubes, but only had loud hum on the right channel. I stopped my testing right there. So, I believe the amp may have all transformers fine, but needs service/repair to get it back to normal. Not sure about the tubes condition. Physical condition is fair, as you can see in the pictures: rust, discoloration, dust, etc. One screw on the top cover is missing. I have other audio equipment, like. Accuphase, Acurus, Adcom, Aragon, Arcam, Audio Research, Audioquest, Ayre, B&K, B&O, Bang Olufson, B&W, Bowers Wilkins, Bryston, California Audio Labs, Cary, Classe, Cambridge, Carver, Conrad Johnson, Creek, Denon, Dynaco, Dynaudio, Goldmund, Infinity, Jadis, JBL, Jolida, JM Lab, Kef, Kimber, Klipsch, Krell, Levinson, Lexicon, Linn, Marantz, Martin Logan, Mccormack, Mcintosh, Meridian, MIT, Musical Fidelity, Music Hall, NAD, Naim, Nakamichi, NHT, Paradigm, Parasound, Pass, Pioneer, Proceed, PS Audio, PSB, Quad, Rega, Revel, Rotel, Rowland, Sonic Frontiers, Sonus Faber, Spendor, Sunfire, Tandberg, Tannoy, Theta, Thiel, Threshold, Totem, Transparent, Vandersteen, Vmps, VPI, VTL, Velodyne. AR, Audio, Audiophile, Amplifier, Amps, Arcam, Acurus, Aragon, Adcom, ADS, Advent, Bose, Boston, Beovox, Bryston, Bedini, B&K, B&0, B&W, Bowers & Wilkins, Celestion, Counterpoint, Canton, Cello, Creek, Cerwin Vega, Dahlquist, Denon, Dcm, Dynaco, Dynaudio, Ess, Spica, Epicure, Ensemble, Electrostatic, Elite, Fisher, Fosgate, Harman kardon, Harbeth, Integra, Infinity, JBL, Jadis, Jolida, Linn, Luxman, KEF, Klipsch, KLH, Krell, Kenwood, Martin Logan, McIntosh, Mirage, Mission, Monitor Audio, Nad, Onkyo, Paradigm, Proac, Sony, Pioneer, Polk-Audio, Preamplifier, Quad, Rogers, Rotel, Rega, Stanton, Speakers, Audio, Stereo, Studio, Vandersteen,, Snell, Spendor, Thorens, Vandersteen, Wharfedale, Yamaha, Speakers, Turntable, M&K, Accuphase, Dali, Wilson Audio, Sonus Faber, Definitive Technology, PSB, NHT, Magnepan, Eminent Technology, Monitor Audio, Vienna Acoustic, Meridian, Behringer, Acoustat, Genesis, Opera, Mirage, Energy, Pinnacle, Musical Fidelity, Sonic Frontiers, Cambridge Audio, Sunfire, Velodyne, SVS, HSU Research, Audio Research, Tannoy, Subwoofer, McCormack, Meadowlark, Conrad Johnson, Parasound, Magneplanar, Audible Illusions, Mark Levinson, Vintage, REL, Revel, Nakamichi, ESS, Emotiva. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “timekinetics” and is located in this country: US. This item can be shipped worldwide.
  • Brand: SAE
  • Type: Power Amplifier
  • Model: SAE 3100

Vintage Lafayette Model KT92 Audio Tube Amplifier Circa 1970s

Thursday, May 12th, 2022
Vintage Lafayette Model KT92 Audio Tube Amplifier Circa 1970s

Vintage Lafayette Model KT92 Audio Tube Amplifier Circa 1970s

Vintage Lafayette Model KT92 Audio Tube Amplifier Circa 1970s

Vintage Lafayette Model KT92 Audio Tube Amplifier Circa 1970s. Current working condition not known. 12 volt audio output, single channel. Original listing was incorrectly labeled as Heathkit. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “dorlind-41″ and is located in this country: US. This item can be shipped to United States.
  • Brand: Heathkit
  • Type: Tube Amplifier
  • Model: Heathkit KT 92
  • Country/Region of Manufacture: United States

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Thursday, May 12th, 2022
Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

Lafayette LA-214 Tube Stereo Amplifier EL84 Single-Ended, All Vintage Tubes

For sale is a vintage, cute. Lafayette LA-214 Tube Stereo Amplifier, EL84/6BQ5 Single-Ended, All Vintage Tubes. I tested the amp (using headphones because the speaker posts are kind of rusty and questionable). All tubes lit up OK but I only get music on LEFT channel, with cracking noise sometimes when I adjust the knobs. Sometimes the signal simply got cut off. So, the electric contacts are not very stable. I then swapped the power tubes, but only had loud hum on the right channel. I stopped my testing right there. So, I believe the amp may have all transformers fine, but needs service/repair to get it back to normal. Not sure about the tubes condition. Physical condition is fair, as you can see in the pictures: rust, discoloration, dust, etc. One screw on the top cover is missing. I have other audio equipment, like. Accuphase, Acurus, Adcom, Aragon, Arcam, Audio Research, Audioquest, Ayre, B&K, B&O, Bang Olufson, B&W, Bowers Wilkins, Bryston, California Audio Labs, Cary, Classe, Cambridge, Carver, Conrad Johnson, Creek, Denon, Dynaco, Dynaudio, Goldmund, Infinity, Jadis, JBL, Jolida, JM Lab, Kef, Kimber, Klipsch, Krell, Levinson, Lexicon, Linn, Marantz, Martin Logan, Mccormack, Mcintosh, Meridian, MIT, Musical Fidelity, Music Hall, NAD, Naim, Nakamichi, NHT, Paradigm, Parasound, Pass, Pioneer, Proceed, PS Audio, PSB, Quad, Rega, Revel, Rotel, Rowland, Sonic Frontiers, Sonus Faber, Spendor, Sunfire, Tandberg, Tannoy, Theta, Thiel, Threshold, Totem, Transparent, Vandersteen, Vmps, VPI, VTL, Velodyne. AR, Audio, Audiophile, Amplifier, Amps, Arcam, Acurus, Aragon, Adcom, ADS, Advent, Bose, Boston, Beovox, Bryston, Bedini, B&K, B&0, B&W, Bowers & Wilkins, Celestion, Counterpoint, Canton, Cello, Creek, Cerwin Vega, Dahlquist, Denon, Dcm, Dynaco, Dynaudio, Ess, Spica, Epicure, Ensemble, Electrostatic, Elite, Fisher, Fosgate, Harman kardon, Harbeth, Integra, Infinity, JBL, Jadis, Jolida, Linn, Luxman, KEF, Klipsch, KLH, Krell, Kenwood, Martin Logan, McIntosh, Mirage, Mission, Monitor Audio, Nad, Onkyo, Paradigm, Proac, Sony, Pioneer, Polk-Audio, Preamplifier, Quad, Rogers, Rotel, Rega, Stanton, Speakers, Audio, Stereo, Studio, Vandersteen,, Snell, Spendor, Thorens, Vandersteen, Wharfedale, Yamaha, Speakers, Turntable, M&K, Accuphase, Dali, Wilson Audio, Sonus Faber, Definitive Technology, PSB, NHT, Magnepan, Eminent Technology, Monitor Audio, Vienna Acoustic, Meridian, Behringer, Acoustat, Genesis, Opera, Mirage, Energy, Pinnacle, Musical Fidelity, Sonic Frontiers, Cambridge Audio, Sunfire, Velodyne, SVS, HSU Research, Audio Research, Tannoy, Subwoofer, McCormack, Meadowlark, Conrad Johnson, Parasound, Magneplanar, Audible Illusions, Mark Levinson, Vintage, REL, Revel, Nakamichi, ESS, Emotiva. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “timekinetics” and is located in this country: US. This item can be shipped worldwide.
  • Brand: SAE
  • Type: Power Amplifier
  • Model: SAE 3100

1950′s Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

Saturday, April 16th, 2022
1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

Vintage 1957 Lafayette LA-57 Mono Integrated Amplifier Original. 12AX7 12AT7 Black Plates Westinghouse. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “greengirl613″ and is located in this country: US. This item can be shipped worldwide.
  • Brand: Lafayette
  • Type: Integrated Amplifier

1950′s Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

Thursday, March 31st, 2022
1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

Vintage 1957 Lafayette LA-57 Mono Integrated Amplifier Original. 12AX7 12AT7 Black Plates Westinghouse. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “greengirl613″ and is located in this country: US. This item can be shipped worldwide.
  • Brand: Lafayette
  • Type: Integrated Amplifier

1950′s Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

Friday, March 25th, 2022
1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

1950's Vintage Lafayette LA-57 Mono Integrated Amplifier Vacuum Tubes

Vintage 1957 Lafayette LA-57 Mono Integrated Amplifier Original. 12AX7 12AT7 Black Plates Westinghouse. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “greengirl613″ and is located in this country: US. This item can be shipped worldwide.
  • Brand: Lafayette
  • Type: Integrated Amplifier

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Monday, January 10th, 2022
Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Vintage Lafayette LRE Monaural Preamplifier 99-0138

Lafayette LRE Monaural Preamplifier 99-0138. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “north-shore-vintage” and is located in this country: US. This item can be shipped worldwide.
  • Model: 99-0138
  • Country/Region of Manufacture: Japan
  • Type: Tube Amplifier
  • Brand: Lafayette

Vintage Lafayette U-50 Lead Tube Guitar Amp Head Amplifier Made by Univox As-Is

Tuesday, October 26th, 2021
Vintage Lafayette U-50 Lead Tube Guitar Amp Head Amplifier Made by Univox As-Is

Vintage Lafayette U-50 Lead Tube Guitar Amp Head Amplifier Made by Univox As-Is

Vintage Lafayette U-50 Lead Tube Guitar Amp Head Amplifier Made by Univox As-Is

Late 60′s or early 70′s Lafayette tube amp head, made in the USA by Univox. Missing it’s 2-6L6 and 1-12AX7 tubes and has a blown fuse. Inside looks clean with no obvious burnt parts. The item “Vintage Lafayette U-50 Lead Tube Guitar Amp Head Amplifier Made by Univox As-Is” is in sale since Thursday, October 21, 2021. This item is in the category “Musical Instruments & Gear\Vintage Musical Instruments\Vintage Guitars & Basses\Guitar Amplifiers”. The seller is “drums-n-strums” and is located in Kunkletown, Pennsylvania. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.
  • Modified Item: No
  • Country/Region of Manufacture: Unknown
  • Custom Bundle: No
  • Brand: Lafayette

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Sunday, October 24th, 2021
Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase

Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase. This is a Lafayette Stereo 224 with a full set of tubes and original operating manual with schematic. The AC power wire has been cut and it cannot be tested. It is in good cosmetic shape with all four original feet. The Manual is a little dirty and the treble knob is hard to turn. The item “Vintage Lafayette Stereo 224 Integrated Stereo TUBE Amplifier Phono Mono Phase” is in sale since Monday, October 11, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “forasong123″ and is located in Longmeadow, Massachusetts. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.
  • Model: 224
  • Country/Region of Manufacture: Japan
  • Featured Refinements: Vintage Stereo Amplifier
  • Type: Tube Amplifier
  • MPN: 224
  • Brand: Lafayette

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Saturday, September 25th, 2021
Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored

Specs from the original manual. Power Output : 50 watts per channel continuous RMS from 20-20k cps; 100 watts monophonic operation. Frequency Response : 14-45k cps at +/- 1dB at 50 watts. 2-100k cps +/- 1dB at 1 watt. Harmonic Distortion : Less than 0.5% at 1000 cycles at 50 watts each channel; 0.75% from 20-10k at 50 watts each channel. IM Distortion : Less than 0.5% at 50 watts equivalent sine wave power, 60 and 7k cps; 4:1 ratio; less than 0.15% at 10 watts equivalent sine wave. Sensitivity : 1.0 volt RMS input fro 50 watt ouput. Hum and Noise : Better than 90db below 50watts/. Damping factor: 15 at 1 KC – 16ohms. Feedback : Over 50dB in six multiple loops. Output Impedance : 4, 8, and 16 ohms per channel. Controls : 4 bias controls; 2 AC balance controls; Meter selector switch; Power on/off switch. Tube complement: (Total of 10) 4 – 7027A, 2 – 6BR8A, 4 – 6CL6, plus 5 silicon diodes. Dimensions : 17″ wide x 12-1/2″ deep x 8-1/2 hgihg. Power Consumption : 350 watts at 117 volts, 50-60 cps AC. The KT-550 was legendary engineer Stu Hegeman’s last work for Lafayette before he moved to Harmon Kardon. The circuit of the KT-550 is the direct predecessor of the HK Citation II, and is extremely similar. I have had this example for about 1 1/2 years now. I found it in original and very dusty condition at a neighbor’s garage sale, gave it a very thorough cleaning, and performed a full electrical restoration with the parts and values recommended by Jim McShane. The only passive components that have not been replaced are six of the wire wound resistors that measured in spec. The power supply now uses 1000 PIV fast/low noise UF5408 diodes for rectification and higher value capacitors from JJ, F&T, and Nichicon. Film capacitors are Solen PPE, Russain paper-in-oil K40Y-P, Cornell Dubillier “orange drops”, and Panasonic. Small-value caps are Cornell Dubillier silver mica. Resistors are all very high quality units from of Precisions Resistive Products, Vishay-Dale, Mills, KOA Speer, Allen Bradley, etc. 221 screen stopper resistors were also added on the power tubes. A full parts list is available on request. The 6CL6s and 6BR8As are the strong-testing vintage units that were in the amp when I got it. The 7027As are reissue Tung Sols with approximately 100 hrs on them. Input jacks have been replaced with modern gold-plated jacks, and a three-prong power cord was installed in place of the original non-polarized cord, with earth ground tied to the chassis for safety. The bias meter works perfectly, meaning that setting it to the indicated mark does in fact result in the correct current through the power tubes. The AC balance setting does not work. However this is moot since the original method of measurement didn’t reliably have better results than just setting the pots in the center. The AC balance has been set for the current tubes, however, by matching the signals at the power tube grids of each section as closely as possible with a dual channel oscilloscope. Actual power output at the onset of clipping is around 40wpc. I can provide 1kH and 10kHZ square wave samples as well if that tickles your fancy. The paint on the transformers and chassis has its share of scrapes and scratches, as seen in the photos, but it’s still a very handsome piece with a nice patina. Internally, some of the potting material from the power transformer has liquified and oozed down through the hole in the chassis. This doesn’t affect anything, but in case you’re curious what the black blob above the choke in the 5th photo is, there’s your answer. The amp will come with a copy of the original assembly and operating manual as well as all of the original components that were replaced. The amplifier works as expected, and sounds incredible. It’s been a labor of love and I’ve enjoyed it thoroughly, but I’ve found I prefer the sound of other topologies, so I’ve decided it’s time to pass this along to someone who will use it. Please let me know if you have any questions or would like additional pictures of anything. The item “Lafayette KT-550 Vintage Tube 50WPC Power Amplifier Fully Restored” is in sale since Saturday, August 28, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “aaron.talcott” and is located in Livingston, Montana. This item can be shipped worldwide.
  • Brand: Lafayette
  • Type: Power Amplifier
  • Model: KT-550