THANK YOU!…………………………………………

A long time customer writes:


“A funny thing happened on my way to buy a McIntosh MC-240 stereo tube amplifier.  I knew exactly where I was going to purchase my vintage tube amplifier; Classic Tube Audio.  I have been working with Pat Hickman, Head Tubeologist, at Classic Tube Audio for more than a decade with Pat bringing my C-28 Preamp to factory perfection, he then worked on my MR-78 followed by my Thorens TD-125 turntable.  While looking at the 240 I noticed there was a pair of sorry looking McIntosh MC-30’s on the floor.  My very first McIntosh system included a pair of MC-30’s and I immediately remembered the warm beautiful sound the 30’s produced.  They were in pretty bad shape but I told Pat the story of my first really good stereo.  Pat volunteered that we could switch the project to the MC-30’s and I immediately jumped on the offer.  What a wonderful decision!  Pat brought this pair of sorry looking monoblock amps to perfection.  All visible areas were addressed; transformers were expertly brought to perfection including filling in any dents or dings with Bondo, sanded, primed and painted.  The transformers were top-offed with absolutely accurate decals, the epitome of attention to details.  What turned these MC-30’s into the beautiful amps are the addition of new chrome chasis with correct decals.  They just gleam in the their perfection. Every detail to match high quality capacitors, tubes, and all new components so that the closest matches were distributed between the two amps.  This makes a tremendous sonic equality between the amps.  To sum it all up the amps are visibly and electronically equal.  Like everything Pat does these amps were returned to perfection.  They look like brand new MC-30 monoblock amplifiers.  I do have a history of McIntosh amps that include my MC-2105 to the behemoth of all amps a MC-2300 that gives me a unique outlook on sound quality.
I worked in the Audio Industry initially as the owner of Quicksilver Audio repair shop in the House Of Music in Salt Lake City, Utah.  I quickly found that with my electronic technician education (ATN) in the U.S. Navy and ability to listen well I was a formidable audio salesman.  I quickly became a top salesman and later the Manager of The House Of Music.  The pinnacle of my audio career culminated in 3 day trip to McIntosh in Binghamton, NY.  Each day we were expertly guided on the many facets of McIntosh Laboratories by Gordon Gow.  We saw manufacturing, speaker research, marketing support, got to meet Frank McIntosh and every other facet of operations.  After the guided tour the evening was spent with Gordon Gow dining on Haute Cuisine followed by nightcaps back in the hotel.  The evening nightcap sessions were the liveliest and most informative sessions of the day.
The majority of my career was spent in the Personal Computer industry ranging from retail sales, software support finalizing in my 20+ year career at Central Washington University Computer Support Services.  My computer career only heightened my appreciation for vintage audio equipment with the introduction to digital music.  While opening many technologies digital advances always came at the expense of fidelity.  The pure sound of vinyl produced by tube technology became even more important in my quest for a really good sound system.
I’ve found that the value of power output has been become extremely corrupted with systems reporting output in the thousands of watts per channel.  One only has to sit down and listen to a whopping 4.2 watts of pure sonic perfection produced by the Whammerdyne “Truth” amplifier to understand fidelity wins every time over wattage.
I know that I have ingredients to build a sonically excellent system.  I owe so much of this to the wonderful advice and mentoring Pat Hickman has provided during our personal/professional friendship.  “Glowing Tubes All in a Row perfection”
A heartfelt thank you, Lynn
Dr Tubeology

Feedback (The good kind ) !

Thanks for the great work on the Fisher 400cx2.  It has brought new definition to the Zu Definitions IV.  Following the power supply rebuild, ground scheme improvements, recapping with Super Caps, and flawless build of the Gold Point attenuator/power switch this is one of the finest vintage preamps I have ever heard.  I try to shy away from the audiophile adjectives because I have a hard time finding much meaning in them, but this baby is musical with explicit definition.  Midrange expression is phenomenal and nothing is lost at the extremes.  I would put it up against just about anything (within reason of course) and am confident it could hold its own, particularly the phono stage.  Great job, money well spent.


I really enjoy improving the performance of the classics

Dr. Tubeology


Check out the progress on our ultimate 2A3 tube amplifier!


Many years of work have come to fruition. We debuted at THE Show Newport and just showed with Zu Audio at The CAS Show in San Francisco CA. The press is taking note we have a world class performer. The “Truth” amplifier  has lived up to all of our expectations and beyond. It is the “Ultimate” 2A3 tube amplifier

Dr. Tubeology

“Truth in Audio”



Dr Tubeology saved my 54 year old amps!

A few months ago back I purchased a couple of 1959 Lafayette LA-55 mono block amps.

With no expectation other than I wanted a restoration project over the summer and I was not about to get electrocuted!

2 lafayette tube amps

Well the amps arrived separately and  I was excited to get them up and going. But that just was not what happened as one amp came up and ran beautifully on some of it’s original tubes.

But the second up came up for 5 min then died!

As you can guess I was not happy as this restoration project by me was starting out on a bad foot…

In walks our hero Dr Tubeology himself Pat Hickman. With a tip from a friend who had his McIntosh 240’s worked on by Pat and was so pleased with the outcome. I decided to drive the 201 Miles to Pat’s shop and wow was I ever surprised by Pat’s lab.

2 vintage Lafayette tube amps on the bench

2 vintage Lafayette tube amps on the bench

I am an engineer and I love anything science related but when Pat sat down and explained to me what was going on with my amps and his prompt turn around I know I was in the presence of a true audio engineer.  Pat was not only thorough but took the time to explain things to me about the circuit of my amps but some of the history of them.  Even though they are 54 year old amps

Pat treated them like they were his own children. I know a lot of us out there long for that fat tube sound from vintage audio but don’t spend your money on some cheap chi fi tube knock off when

you can buy some vintage tube audio and see Pat to get you back up and running in no time.

I figured the process would take a month or so but Pat had it ready to go in 2 weeks talk about service!

The reason for me calling him Dr Tubeology is that he has a mannerism like a doctor about to do surgery on your loved one with a good prognosis in the end.

All in all my experience with Pat and his services are 1st class all the way!

And keep watching his website in the future as you may be surprised at what you see and hear.

Thanks again Pat for your work and friendship it means so much.

Oh I almost forgot Pat’s prices are the best I have ever seen and really fair!!!


Eric Worden

[email protected]