Soon to debut my new amplifier products!

See announcements at:




Three new models of pure SE tube 2A3 audio amplifiers at amazing price and performance levels and USA made!

$ 1800, $ 2500, $ 4500


I hope to have more pictures and concepts posted soon and from the show


Check it out,

Dr. Tubeology





The Holy Grail of Marantz Tube components (NOW SOLD)

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The Holy Grail of Marantz tube components have arrived in my shop. ( I will be taking this post down soon, this package just SOLD, January 5th 2017)

This will be sold only as a full set

(2) Marantz model 2 amplifiers (These are cosmetically mint and close serial numbers)
(2) Marantz Model 1 Consolette pre-amplifiers (These are cosmetically mint and close serial numbers)
(1) Marantz model 6 (this is the accessory unit that ties the two mono pre-amplifiers together to work as one stereo pre-amplifier (Cosmetically mint)

(2) power supplies for the Model one pre-amplifiers (MINT) not pictured

Price for package restored $ 20,000 FIRM

This is one of the nicest and most mint sets I have had in years!    serious inquiries only

The above is now sold , but I wanted to leave the post up for a while to show the fine components I get in the shop, I will be expanding this website in the year 2017 this will include an easy to see and view posted (page specific) on each component I get in and place up for sale. Please remember me when any of your vintage components need repairs or restoration too.


This Marantz set sold only as a set ( I will be taking this post down soon, this package just SOLD, Dec 23, 2016)

(1) Marantz 8B amplifier (This is close to Mint just a few very small pint nicks) functions perfect, never serviced                                                 (1) Marantz 7C pre-amplifier (This is very close to mint, note some tiny what appears to be light finger nail scratches at knob  selector areas and some very tiny (not visible a foot away) cosmetically abut a 9.5 will clean up nice. never serviced its original                                                                                                                                                                                                                                                                                                         (1) Marantz 10B tuner (This will be getting a new face dial glass, otherwise its face-plate is near mint and chassis is  not corroded it looks new) come with cabinet

This group above is being sold as a set for $ 9995.00

I will carefully pack each unit and insure via FedEx as the shipper USA shipping destination only, buyer will incur packing and shipping insurance costs

Payment only by Bank Cashiers Check or Certified Bank Check (verifiable) all funds must arrive in advance and clear before shipping out

Please contact me for any questions details and more information about these very rare Marantz Components

The above is now sold , but I wanted to leave the post up for a while to show the fine components I get in the shop, I will be expanding this website in the year 2017 this will include an easy to see and view posted (page specific) on each component I get in and place up for sale. Please remember me when any of your vintage components need repairs or restoration too.

Cheers, Dr. Tubeology




Changes on the wind………………………….

Classic Tube Audio is growing!, now gong into our 44 th year, our shop work space is busting at the seams. You know what that means ?, cleaning up and reorganizing it’s just not working anymore. So with that said a new shop is in order and in the works over the next 60 days we are constructing our dream lab.

I will be sacrificing a lot of electronics in the process, I do not wish to move all this heavy electronics audio inventory. Below is a partial list. no sane offer refused. Yes sane, do not insult me or yourself by being a low-baller. I will tell you to go pound sand.. Ha Ha. But if you are fair with me I will be in kind to you.

As we move toward the build out of the shop I will post progress reports. With the new shop comes changes with me I will be spending a lot more time on the bench so I will be expanding my offerings service wise taking in more work. Turnaround times will improve, as to quality of work no changes we already are #1 top rated in the good old USA we live and breathe vacuum tube Hi-Fi, new old in-between………

Dr Tubeology

Tube whisperer

New Arrivals, 
1)     McIntosh 2505 stereo amplifier, just serviced works perfect clean and in great condition $ 900.00

 1)     Pair Marantz Model 5 Tube mono-Block amplifiers EL 34   Tube (RARE) As-Is non restored, SOLD 8-2016

1)     McIntosh Model MC30 mono amplifier (Tube)

1)     McIntosh C8 Mono Pre-amplifier (Tube) ($ 395.00 as-is)



Very Rare Audiophile Amplifiers:


1) Futterman OTL 3 Complete (mono-bloc pair) restored and for sale (RARE) $ 2500.00 the pair (SOLD 8-2016)

(just changed the price as I installed a better set of close matched output tubes and also did a few circuit revisions, they are functioning better than new!, I was able to lower the distortion even more with some additional bypassing of the power supply)


1) Mr. Liang 845 amplifier ($ 500.00) Mint and functions perfect

2) McIntosh C20 pre-amplifier (1) sold 4/2016) (2nd one SOLD 8-2016)

1) McIntosh MR65B FM Stereo tuner (Ready to go and complete with original packing and box and documents)

1) Celestion SL600 bookshelf speakers (Pair)rough (Sold 7-2-2016)

1) Marantz 10B FM Stereo tuner (This will go into Q for full rebuild) ($ 2000.00)

1) Adcom GTP500 stereo Pre-Amplifier/Tuner/With phono (150.00)

1) Linn Basik LV X arm looks to be (new in box) with new Linn cartridge in headshell $ 600.00

1) McIntosh MC275 (to restore yet with new chassis and rebuilt electronics $ 4,000) or as is $ 2500.00 (SOLD)

3) McIntosh MR71 (One sold 5/2016 (2nd sold 6/2016) (1) Left, its in ok condition about a 4 on the scale, $ 150.00 as is

1) Marantz Model 8b Stereo Tube Amplifier (as-is $ 1500.00)

3) McIntosh MC240’s (2 sold 03-2016)(one sold 04-2016) 3 left

4) McIntosh MC30’s (2 sold 3-2016)

1) McIntosh C20 ($ 2100.00) (Near mint) all documents Never touched as it was originally works perfect

2) McIntosh MC2505 (MINT, 10 on the scale fully 100% operating $ 1100.00) (One Sold 5/2016), One I’m servicing, last one ready to go 8-8-2016
1) McIntosh 2505 stereo amplifier, just serviced works perfect clean and in great condition $ 900.00

2) McIntosh MR67

1) McIntosh 1700 (near mint $ 700.00) SOLD 8-8-2016

3) McIntosh C24, C26, C28 (1 each) (1 c26 sold 03-2016)

1) McIntosh MR500

1) McIntosh MR78 (gets new face glass and re-aligned $ 1100.00)

2) McIntosh MR74 (Sold 6-30-16) One MR74 left condition is 7.0 works fine

1) McIntosh MR500 Stereo FM Tuner

1) McIntosh MC2155 Stereo Power Amplifier ($ 1,000.00)

2) McIntosh MR 65 FM Stereo Tuner

1) Dual (United Audio) 1015 Turntable as is not tested, clean with manual (as-is $ 120.00)

1) Linn Sondek LP-12 Turntable with Ittok IV arm and Koestu Rosewood signature cartridge ($ 3500.00)

1) Michell “Micro” Turntable with Rega RB300 arm and Sumiko nude bluepoint (1200.00)

1)     Mono Marantz model 5 tube amplifier untested EL34 Tube clean (as-is 1500.00)


In the Q for rebuild

1) McIntosh C29 pre-amplifier, now in process

 More Hi-End and Audiophile electronics

 1) Pair Zu “Omen” larger book shelf speakers (no longer using I upgraded to large Zu’s) See website for details MINT $ 900.00

1) Bi-Frost DAC (Digital to analog converter) Mint with all UBER upgrades MINT $ 550.00

1) iFi Nano USB DAC mint all boxes and materials) $ 150.00 near brand new


 Many of the components offered are used in good working condition and bench checked (Trade-in’s and upgrades) My service is personal, professional and attentive, by appointment only. Please email me and I will be happy to follow up with you and set an appointment.

 See my extensive service and repair offerings on Craig’s list: Service’s offered (Small business ads section) check me out at:

Also Facebook at:

 **Our new offering is a home grown “Ultimate” 2A3 Vacuum Tube amplifier called the Truth; please see our direct website for more about this world class amplifier:, This year’s highlights. The CAS Stereo show in SF and received accolades as one of the best sounding systems at the show, Stereophile mentioned us as one of the top sounding systems, The Audio Traveler, noted at THE Show in Newport we were a show stopper. The NY Audio show, we just received the “Gold” award for one of the best sound rooms at the show. Soon to be revealed, “Product of the Year 2105” with a full review from

an internationally recognized hi-end audio publication, Tone Audio magazine’s premiere hard copy “printed” edition 


Milestone with our Lab Beta Ultimate 2A3 amplifier, “Truth”

A milestone has been achieved in one of our two Lab amplifiers for the long term durability QC testing. Note (in the photo) the lower left hour meter, It’s close to turning 2000 run hours on the lab unit. This is one we are set up for both long term listening in the lab and other testing processes, so pardon the missing features and controls, its not pretty. Not only have we achieved a true 2000 hours of run time this has been a durability test as to power cycling, many hundreds of times long, short , in-between.

We have purposely tried to kill it. No issues nada, zilch!. how’s that for a world class tested audiophile component!. We pulled the tubes and did a full curve and test of emissions in all parameters and no detectable loss of emission or other anomalies was found.

So in summation not only do you have the worlds best sounding 2A3 amplifier (TRUE DC Coupled, No Capacitors) with the best components and engineering that exists, it can take a beating and keep on ticking!.. you deserve as the customer nothing less. It really does sound like a million bucks. We will put it up in comparison with anything we are that confident!

Head “Whammer”

for more about the most amazing 2A3 amplifier on the planet see:



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”



Marantz 7C Pre-amplifier MINT “Holy Grail”

You audio collectors and vintage classic Hi-Fi buffs and Audiophiles don’t need me to tell you much. You know what this is. Here we have a MINT, I mean MINT model 7C the king of tube pre-amps. This is all original, has the wood cabinet and all near NOS test Telefunkin 12AX7’s tubes no work has ever been performed on this, except possibly by Marantz, I see where the power supply diodes decades ago have been updated. I have run up on a variac and all capacitors are working fine and the unit functions all inputs working, its nice and quiet no hum, phono stage is working perfect, all switches and controls are noise free. I have supplied some pictures here as I opened it up. I will  ship , but due to extreme value I must have bank certified check and continental US sale and shipping only, If you make an offer it must be close to my asking price. I have not seen one this clean in 20 years at my shop.

It looks like it was in a time capsule, even the tube shield covers are bright finish still, LIKE NEW
This is the nicest one you will ever see