Patrick Kauffman Electronics

check in your repair here

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 first St. Brooklyn, NY 11249
646 - 462 - 3808

(Located in the back of Main Drag Music.)

Hours:

Sun & Mon: Closed
Tues - Thur: 10am - 5pm
Fri - 10am - 6pm
Sat: 11am - 7pm

Well, I’m doing a little spring cleaning and just need to take a moment to admire this Technical Material Corporation general shortwave radio. This beauty receives from the AM broadcast band up to 31.5 megahertz. Everything TMC made is legit. I

On the bench is this early 80s Jim Kelley reverb amp. These amps sound really good and use a quad of 6V6 power tubes. This needed a lot of work to make right but I’m Happy with the result. It’s fun to dive into such a rare amp.

You never know in amp repair. So This Danelectro DM25 was my clients father‘s amp and we’re bringing it back to usage. It needed some noisy resistors replaced to make it usable and an open resistor replaced to bring back the reverb. I cha

I just posted a new YouTube video on my channel. Check out this 1962 Gibson GA-78 RVT! It needed a good servicing and some cathode bypass caps replaced! These amps are pretty amazing!!!

On the bench is a HH V-S Musician 70s Head. I don’t do a lot of solid state amps these days and I can’t say I did major troubleshooting or restoration on it. A sunken input jack and two electrolytic capacitors that were lose inside are no

Sometimes in amp repair even a working amp needs a lot to make it reliable and sound the way it should. This mid 70s Laney Klipp 100 basically worked, but there were a lot of issues to address.

The plate voltage on these amps is incredibly high, abo

I love when a repair has family history, especially when it’s drenched in a bad assery.

This ‘72 Super Lead came in needing some work for sure. A two prong power cable was still on the amp. It needed some servicing and some electrolytic

❤️My son playing in the World’s Most Famous Arena!! My family together!! Everett with the save on the baseline.

One of Everett’s teams got to play a half time event at Madison Square Garden during a Knicks vs. Pelicans game.

New York

New YouTube video on my channel. Today we got a 1966 Ampeg B-15N. Apparently this amplifier has a pretty long history and was allegedly part of the original SNL backline. In the video I talk about the history of the B-15 and my own theory as to some

Awesome + underrated = Musicman. Musicman amps rule and in the last two weeks I had three small ones in the shop. A mint RD 110 fifty that needed the reverb fixed. A RD 110 fifty that needed a new speaker and last a RD 112 fifty that’s needed w

1966 Fender Vibrolux Reverb AA864 in for some basic service. The Vibrolux Reverb (35 watts) is similar to a Pro Reverb (40 watts) but has two 10s instead of two 12s. The output transformers are the same (Schumacher 125A7A) on both amps but the power

On the bench is this 1967 Fender Bassman AB165. The head came in original and roached from the road, and years of attic storage. It needed all new electrolytic caps, a deep switch, screen grids, a preamp tube that needed to be changed, noisy resistor

Here’s is a 1962 Princeton 6G2. With a 10 inch speaker and a pair of 6V6s, it delivers 12 watts twisting the night away through the 125A10B output transformer which is smaller than the other Fender push pull 6V6 amp of 1962, the Deluxe.

The D

Happy Valentine’s Day! Here is a 1964 Fender Champ. This heart stopper was humming bad because the original filter can capacitor quit its job holding charge. With a new can and some general servicing, this Champ is ready for a night out on a fu

On the bench is this stunning 1961 6G11 Brown Vibrolux. This amp came in for a lack of mids and a cold sound. The stock value .05 tone cap connecting to the bass pot and the 6.8K mid resistor were changed to .1 microfarads in both channels on this am

This 1966 Bandmaster AB763 with matching cab came in for some serious service. This head was all original, two prong plug, original electrolytic capacitors, and pots dirtier than the East River.

I replaced the electrolytic caps, put in new power tu

Telefunken V76 in for a minor repair. A bad solder joint was causing the audio to drop out. This preamp is one of the greatest pieces of audio gear ever designed. Sounds so amazing even when testing it with a mic at the bench.

This 68 Ampeg Reverbojet walked from a closet, to a school charity drop off, and then to my bench for evaluation. It’s been quite a few years since it was powered up.

The amp was made safe and right for sale to raise money. I replaced the pow