This is a LUX SQ-38D vacuum tube amplifier. Being a very old used item, it has scratches from use, please check the photos for the condition. The amplifier was previously used by a family member as a hobby, but has been stored in a warehouse for about 20 years. When connecting a PC to AUX-1 and connecting speakers to SPEAKERS L R’s 0 and 8? , sound was confirmed on R, but no sound was produced on L. When connecting a PC to AUX-2 and connecting speakers to SPEAKERS L R’s 0 and 8? , sound was produced on both L and R. When connecting a PC to TAPE and connecting speakers to SPEAKERS L R’s 0 and 8? , sound was produced from both L and R, but the sound was muffled and quite poor. Operation of PHONO 1 and 2 has not been confirmed. The MODE was tested in stereo only; other modes were not checked. The BALANCE was responsive.
Unit is in nice condition! Indicator light turns on and the tubes heat up. Unit isn’t further tested.. I couldn’t find much information on femco but I do know they made old coal mining equipment as-well. Item is in overall good condition, item may show a few signs of cosmetic wear/flaws due to storage/use. Please view and inspect each photo before purchasing. Once receiving feedback, I’ll post a positive for you also. I ALWAYS try and work with everyone to make sure you have a pleasant experience with my sales. Cost Will Be Additional For AK, HI, PR, VI & GU.
Power output: 25 watts per channel into 8? (stereo). Frequency response: 25Hz to 25kHz. Total harmonic distortion: 0.8%. Input sensitivity: 4.4mV (MM), 440mV (DIN), 280mV (line). Signal to noise ratio: 80dB (line). Channel separation: 50dB (line).
I built this amp 6 years ago, but it’s too loud for me to open it up when I play in my house. I assembled it from a kit by Boothill Amps, so the parts are high quality. You can look at his website for more information. It’s a 5-watt 5F1 “Fender Champ” circuit. The speaker is an 8-inch, 4-ohm ceramic Warehouse G8C. I bought a tube set directly from Dave at Boothill Amps because he said that a USA-made tube rectifier would be more reliable and keep the amp at the proper voltages. The newer modern production 5Y3 tubes run at higher (hotter) voltages. Keep this in mind if you plan on replacing the 5Y3 rectifier (far left tube, V3) and/or the 6V6 power tube (middle tube, V2). He sent me a USA-made RCA 5Y3 (rectifier) tube and a USA-made RCA 6V6 power tube. These are vintage tubes, but I’ve read that rectifier tubes last a long time. The V1 preamp tube (far right) is a brand new modern Russian-made TOL-SUNG AX7. I will include these three tubes with the sale. The transformers I used are now difficult to find: a USA-made ClassicTone 40-18019 (Power Transformer) and a ClassicTone 40-18115 (Output Transformer). The pine cabinet is unbranded and came with the kit. It’s well-made and covered with raw (unlacquered) tweed. See photos and video for details.
Up for sale, a 1961 Fender Vibrolux in excellent condition and in perfect working order, complete with the original footswitch. Loaded with a full vintage tube set, this narrow panel tweed-era Vibrolux amp has the coveted 5F11 circuit, offering a range of dynamic tones to match its good looks. The sound is shimmering and harmonically rich, delivering round cleans and overdriven grit and bite higher on the Volume dial, cascading into ripping tube saturation at its highest settings. The tremolo is bias-based and has a strong pulse, with a smooth waveform and plenty of intensity and present percussive chop. The circuit features the original Triad power transformer and Schumacher output transformer (dating to the 46th week of’60). The preamp has a bevy of original yellow Astron capacitors, as well as two stock CTS pots dating to 1959 and’60 (two replacement pots are from the 1980s). The power supply has been professionally recapped, along with the smaller electrolytic caps in the preamp. A modern three-prong power cable has been installed. The tube set includes all vintage valves, with a Sylvania-branded rectifier and Telefunkens in the preamp. The tube chart is intact, noting the 5F11 circuit, stamped “KA, ” which dates to January of’61. The amp is loaded with the original Jensen P10R 10 speaker which has a dark blue/green frame, ribbed cone, stock bell cover and stamp on the edge of the frame from the 48th week of’59. The amp presents extremely well, and the original lacquered tweed is only modestly ambered, paired with the original oxblood/gold stripe grillcloth. The face of the amp retains its metal Vibrolux badge, and the leather handle is a vintage-style replacement. The chassis is positively gleaming, with bright chrome plating, all of the original white silkscreen text intact, and stock chicken head knobs. The original black molded footswitch for engaging the vibrato is included.
Danelectro 1955 Supro TV Front 6V6 12 Combo Tube Amplifier Serviced.. Cabinet has been re-covered but maybe the original is still under it. They left it on the back panel.
Vintage Grommes Precision 20PATube Amp – Converted for Guitar or Harmonica. This Precision 20PA amplifier has been professionally restored and converted to a Guitar/Harp amplifier by Mad Daddy Amps. This really cool vivid red vintage amp is unique amont these vintage PA Tube amps. The Precision 20PA model offers early break up with rich harmonics and is perfect for musicians looking for a vintage sound with modern reliability. This amplifier is ideal for professionals and enthusiasts seeking a classic audio experience with top-notch build quality. It sports 2-6BQ5 tubes providing 10-17 watts of power for that early British toned, perfect as a studio amp or performing in small venues. There is a clean and dirty input which allows for clean or dirty sound for use with harp or guitar at most volume levels. Features 4, 8, and 16 ohm speaker outputs. Mad Daddy is one guy, Carl, based in Medina, Ohio. He was an electrical engineer for 50 years and in the 60′s worked on torpedo guidance systems. He’s also a guitar guy that enjoys building and rebuilding amps. He has a few signature pieces such as his Pure Daddy Combo, a skillfully reconfigured EVJ chassis and cabinet with a hand wired point to point Champ circuit. He also is extremely skilled at rebuilding vintage PA amps like this one, voiced for guitar and/or harp. Carl will also take special orders to modify or repair your amp or revoice it for your individual needs. If any of the amps we modify come to us with death caps, they are replaced with a safer circuit and all amps are outfitted with safer 3-prong electrical plugs. The new badge and labels placed on the amps are there for your convenience but are readily changed or removed at your discretion. We have other vintage amps we are working on but this is the only one of these we have. It’s unlikely we’ll find another, especially in this condition.
