Patrick Kauffman Electronics

Repair info / check-in

120 Watt Mono Power Amplifier — hear tube audio as if tube technology kept advancing.

120 Watt Power Amplifier

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ServicING:
tube Amplifiers, Tube Hi-Fi & Radios
& Vintage Pro Audio

Guitar Amps ++ Vacuum Tube Equipment ++ Tube Hi-Fi
Vintage Pro-Audio ++ Vintage Amateur Radio Equipment

location:

50 South 1st St. Brooklyn, NY 11249
646 - 462 - 3808

(Located in the back of Main Drag Music.)

Hours:

Sun & Mon: Closed
Tues - Wed: By Appointment Only
Thurs - Fri - 10am - 6pm
Sat: 11am - 5pm

It’s not every day I have two 59 5F1 Champs in the shop but I had to hear them side by side and take some photos of the one just serviced. So simple, pure and iconic. Thanks to @precisionguitar for slaying the playing!

On the bench is a 68 Fender Bandmaster. The amp came in with a shorted filter cap and rectifier diodes. After an overhaul and burn in some plate resistors got noisy (no surprise there) so I changed them out. The client inherited the head and matchin

This 1961 Kay was brought in for service needing an isolation transformer installed for safety and the filter caps replaced. These little amps were for students and don’t meet todays safety standards. The owner is just the coolest and nicest pe

Hey guys, so from October 1st-29th I won’t be able to take in any more work. If you have previously scheduled bringing in a repair that is still ok, but I simply am out of room and can’t take in any more walk-ins. On Thursday Oct 30th fe

Ampeg SB-12 Portaflex came in with power tube issues. The client wanted to separate the head and cab so a ways back I added feet to the chassis tray and separated the tray from the cabinet top. It really is a handsome cool little amp.

On my YouTube channel, I have a new video up all about capacitors!!⚡️⚡️

Here is a beautiful 1962 Fender Super with all the original goods. It was shipped to the client and a ground buss popped up. It needed minor TLC and 4 cathode caps replaced, the rest were changed in anther state at anther time. I can’t tell you

Rarer than a blue comet on a New Jersey boardwalk is this 1961 Ampeg 625-D 2x12”. Museum example of what seems to be a custom amp. There are examples of the 625-D but not in a 2 speaker cab. This amp needed new coupling caps as the originals we

1955 Fender 5E5-A Pro in for a full restoration. A full recap, cleaning, soldering, safety upgrades and lastly the asbestos on the rear panel sealed up with polyurethane. This amp sounds so good with a 15” speaker and fixed bias pair of 6L6s.

Two cool and original amps in for service. 1961 Supro Bantam 1611 in for an isolation transformer to make it safe and get a grounded AC cable. Borrowing the circuit design from the radio world this amp doesn’t have a power transformer so the c

Love this funky little pair of Magnavox 151AA amps mounted handsomely on a custom board. These amps were originally in console radios with various setups of tuners and turntables in the late 50s to late 60s. Someone mounted these on a board but never

Two clean original 66 Bassmans AB165s. Such great iconic amps and honestly, still underrated for what they are. I did these about a month ago and wish I documented them more as both were all original getting new electrolytic caps and the usual TLC. T

When you’re being mean to me this is who you’re being mean to btw

@oldschooldads

New YouTube video up on an Ampeg V-4B. We reverse some modifications and sloppy work, bringing it all back home. We take a dive into tradition, the counterculture and also remembering music. Link in bio 💫

Here is a 1972 Benson 300H - a truly rare amp from the fascinating short lived Benson Electronics Inc (1967-1974).

This Benson is not to be confused with today’s Benson amps. The company started with Ron Benson designing and building an amp f

1969 Marshall JMP in for service! This small box model 1987 Plexi 50W head came in for blowing fuses. It needed a new set of EL34 power tubes and a service. The head already had new electrolytic caps replaced so this repair was short and sweet. I was