Vintage Tube Amp

Up for sale, a 1963 Ampeg B-15N Portaflex fliptop amp combo in excellent condition, freshly serviced and loaded with a JBL D140F speaker. The B-15N is one of the most recorded and highly regarded tube bass amp circuits of all time, and this early (third year) example has just been given a clean bill of health from our techs here at Mike and Mike’s Guitar Bar. As the amp that defined the Motown bass sound and a must-have for studios worldwide, the B-15N is the undisputed king of vintage studio bass tone, with a thumpy sound that is round, detailed, and versatile, bringing out the best in your instrument’s natural tonal characteristics. The two channels each have a unique voice, with Channel One being a bit more mellow and smooth, while Channel Two has a touch more grit and bite, also making it an excellent choice for guitar (diming this channel out delivers a particularly nice overdriven roar with a humbucker or P-90 equipped instrument). The circuit retains the original transformer pair, with a fully recapped power supply and a couple new Sprague caps in the preamp. All but one of the original CTS pots are present, with visible date codes from the 6th week of’63. The original plexiglass Ampeg badge is present, illuminating as it should when the amp powers on. The head and cab still connect via the original multi-pin connector, and the amp has been upgraded with a three-prong power cable. The tube complement includes a matched pair of Tung Sol 5881 power tubes, a vintage Westinghouse rectifier, and the original trio of Ampeg by Sylvania 6SL7 preamp tubes. The speaker is a vintage JBL D140F 15 alnico magnet driver. While Ampeg would include a CTS speaker with the B-15N from the factory (or in some cases an Altec for an upcharge), this JBL is arguably a better option, offering the ideal blend of dynamism, headroom and overall efficiency for a tube-driven bass signal. The original tube chart is intact inside the cab, with the stamped serial number dating to 1963. This is a well-kept example, with bright chrome plating on the chassis, white silkscreen text, and all of the original knobs present. The original latches are present and the plastic handle for the head tray is MIA. The original blue diamond covering is notably clean throughout, while the trolley is a modern replacement.

Marshall Lead 12 Watt Combo Guitar Amplifier for parts or repair. The pots were scratchy and tried to pull off the knobs to clean them and one of the shafts from the pot came off. I never did clean the scratchy pots. The Marshall Lead 12 is a highly regarded 12 watt solid state amplifier produced between 1984 and 1991 as part of the JCM800 series. Despite its compact size and transistor-based design, it is famous for capturing the “Marshall growl” and iconic British overdrive usually associated with larger tube amps. Check Out Our Other Items For Sale, For More Great Stuff! International Buyers – Please Note. We do not mark merchandise values below value or mark items as “gifts” – US and International government regulations prohibit such behavior. We will try and make it right.

Description: Vintage Admiral 5T4A mono-block tube amp with a push-pull pair of 6BQ5 / EL84 output tubes. Solid platform for a low-watt guitar amp build or recording amp. Strong transformers and a clean push-pull EL84 layout make this an excellent foundation for a great-sounding low-watt guitar amp. Powers up and plays well with strong, clean output. Serviced in the past (electrolytic & coupling capacitors replaced). See under-chassis photos for details. Push-pull EL84 / 6BQ5 output stage. Console pull / mono block format. For Guitar Use: Great candidate for a custom build. As with most console amps, you’ll likely want to modify the input, tone controls, and grounding depending on your setup. Good iron and straightforward layout make it a strong platform. Sams Photofact (schematic + parts list). Vintage electronics – may need additional service depending on use. Photos are part of the description.

Vintage Triad R-200A power transformer, tested and working. Rated 115V primary, 400V C. At 400mA, plus two 6.3V 3A windings. Shows normal cosmetic wear from previous use.

Great looking vintage amp. The amp has been fully tested recently and works as normal. Comes with original foot pedal. Amp weighs 44 pounds.

Offered is a rare pair of vintage Pioneer PAX-30G 15-inch coaxial speakers housed in substantial custom-built cabinets. Both speakers have been fully tested and are in good working condition with clear, balanced sound. The Pioneer PAX-30G is one of Pioneer’s classic vintage full-range coaxial drivers, highly regarded by collectors and tube amplifier enthusiasts for its smooth, efficient sound. Genuine Pioneer PAX-30G 15 coaxial drivers. Tested and fully functional. Heavy custom-built speaker cabinets. Adjustable side-mounted level controls. Vintage horn-loaded/ported cabinet design. Great addition to any vintage hi-fi collection. Approximate Cabinet Dimensions (each). Weight: Approximately 34 lbs each. Both speakers are fully operational. Cabinets show normal cosmetic wear from age, including scratches, scuffs, and small finish imperfections consistent with decades of use. Please review all photos carefully as they are considered part of the description. They will be packed with great care to help ensure safe arrival.

For sale is a matching vintage Lafayette tube audio pair consisting of an LT-80A FM tuner and LA-55 mono integrated amplifier. Both units have been fully restored, serviced, and tested. They are operating properly and sound excellent. The LT-80A has strong FM sensitivity and receives weaker stations well, even with a very basic antenna. The AFC functions correctly and keeps stations locked in once the tuner has warmed up. As is typical with vintage tube FM equipment, there may be a small amount of warm-up drift with AFC switched off. The LA-55 amplifier plays clearly and strongly with no significant hum or operational issues. Controls, switches, and functions have been checked. Cosmetically, both pieces are in nice overall condition for their age. They present well as a matching set, though they are not museum-perfect and show some normal age-related wear. Please review the photos carefully for exact cosmetic condition. This is a great opportunity to own a restored matching Lafayette tube tuner and amplifier set that is ready to use, rather than an untested project.

This 60W toroidal tube output transformer is newly made for high-end Push Pull audio amplifiers. It is an improve version to work with most of the common output tubes. 4 & 8 ohm. 0.1 & 0.2 ohm. 6146B, 6550B, EL34, & KT88.

Vintage Philco and MajesticType 45 vacuum tubes. Which is a celebrated directly heated power triode introduced in 1929. It was extensively utilized in the audio output stages of 1930s console radios and is highly sought after by modern audiophiles for its exceptionally clean and musical single-ended audio amplification. These were an estate find. According to historical data sheets like the Tung-Sol 45 Manual, the standard operating parameters include. Filament Voltage: 2.5 V (AC or DC). Filament Current: 1.5 A. Maximum Plate Voltage: 275 V. Average Plate Current: 36 mA. Amplification Factor (Gain): 3.5. Maximum Power Output: 1.6 to 2.0 Watts. The base features a standard UX-4 4-pin arrangement. When looking directly at the bottom of the base with the two larger pins pointing toward you. Filament Pins: The two larger/thicker pins (Pins 1 and 4) carry the 2.5V filament supply. Plate Pin: One of the thinner pins (typically Pin 2) connects to the high-voltage anode. Grid Pin: The remaining thin pin (typically Pin 3) serves as the signal input grid. The handwritten text “FIL OK” on the glass bulb indicates that the filament has been tested for electrical continuity and is not broken. I didn’t test it, but I believe it’s in good working condition. Please view photos for more details.

Earliest example on the market. Low serial number from first year of production. Untested/As-Is due to age. Any questions please ask. Will be glad to take more photos and videos for serious potential buyers. Came from estate of original owner.