Monday, August 12, 2013

Bridgestone Atlantis ASP 530

My Bridgestone Atlantis is probably the rarest and most elegantly understated bike I will ever own. The model came in 2 sizes only; 56 and 53 cm. Mine is the more compact 53 cm model with 700c wheels in silver.

It appears from these links to the 1982 models that the Bridgestone model designations are ASP 530 and ASP 560 for the 700c wheeled bikes.

Links to a Japanese website Cyclotourist:

1982 model designations:

1982 model geometries and specifications:

The above are for the 1982 model year and I believe my particular bike was from 1986 based on the component dates and the bike having the later style Sugino PX cranks.

I acquired my Bridgestone Atlantis in not so bad condition considering its age. It has some light rust but no dings or cracks or any structural issues. Some of the chromed parts such as the headset, the pedals and quick releases were a bit more severely rusted but these are replaceable and not a great concern.

It still has mostly the original components. Original parts missing were the fenders and the front rack and the original seat binder bolt (replaced by a quick release by previous owner).

The first picture is of the bike when I got it and the second picture is its current configuration:

This bike is a work-in-progress as I plan to make this my main bike. I got 32mm Continental Gatorskin tires, 43mm Hammered Honjo fenders as well as the Potuguese made cork grips from Rivendell for it.

I have been looking for the correct front rack which is supported on 4 points (2 at the brake posts and 2 at the mid-fork lugs). The Nitto and Velo Orange front racks on eBay are configured to be supported on 3 points. Those though not optimal, would do and I probably will end up with one of those.

I am also thinking of having the shifter on the handlebar for easy access. However, I still have not made up my mind whether to go indexed or just use friction shifting which would cost much less and will not necessitate changing the rear freewheel and rear derailleur.

I am also toying with the idea of putting one of my Grand Bois Hetre and Velo Orange 650b wheelset on the bike paired with my Mafac Raid brake:

There is very little information about the bike on the internet and this is because this model is only marketed in Japan and there were not many made.

Here is a write-up of the same bike by Grant Petersen of Rivendell Bikes and the man responsible for making Bridgestone USA famous among bike enthusiasts during the late eighties to early nineties.

Links to a Rivendell fans site Cyclofiend:

The bike does have similarities in geometry and details to some Alex Singer (and Rene Herse) randonneuring bikes as observed by Grant Petersen.

It is also apparent that the Bridgestone X0-1 material and design has its roots in the Bridgestone Atlantis. The quad butted tubing, the investment cast fork crown, the simpler V-shaped rear dropouts (without the small triangle) are similar. The geometry is likewise not too far removed; with tweaks probably due to the wheel diameter difference (700c on the Bridgestone Atlantis and 26" on the later Bridgestone X0-1).

Owners of Rivendell Atlantis bikes who are still wondering why there is that number "2" painted on the seatpost of their bikes should wonder no more. It is there as a tribute/acknowledgement to the first bike named Atlantis.


Sunday, August 11, 2013


I recently won an eBay auction of a bike that I am really excited about to write about in my blog. 

Here are some of the pictures from the eBay listing:

The pictures are really very nicely done and really showcased the beautiful colors and condition of the bike. I really like the colors though most Yeti fans seems to favor the turquoise blue and white more associated with the Yeti bikes.

I am not familiar with Yeti bikes but became interested in them from from perusing various bike forums such as Retrobike in the UK  and the Vintage Retro Classic sub forum of MTBR where I saw similar models being rebuilt and restored. 

Sunday, April 15, 2012


Here are a few schematics I got from other sources and also schematics I made myself. I plan to add more schematics that are of interest to me in the future:

Seymour Duncan 84-50 Tube Amp and the Quadratone Footswitch:



Jester Oahu JU-28 Tube Amp:

Note: I tried my best to do this accurately but I give no guarantees for accuracy. The cap value in blue is a best guess on my part because I could not see the markings on the cap itself. I saw a schematic of a similar amp with that same value.


Teisco Tube Amp Model 62:


Sunday, February 27, 2011

Fulltone Clyde Deluxe Wah

Fulltone Clyde Deluxe Wah
Serial No. 10877

The Fulltone Clyde Deluxe Wah is an excellent sounding, well-designed and ruggedly built wah pedal.

The most important components, i.e., the case (including the toe/heel pivot mechanism), the pot and the inductor were custom designed/manufactured by Fulltone to differentiate it from the various crybaby wah derivative products in the market.

Additional features such as 3 selectable voicings and a 10-step input gain level selector distinguishes the Deluxe from the basic Clyde Wah.

Electro Harmonix Deluxe Memory Man

Electro-Harmonix Deluxe Memory Man
1990's Reissue with Wooden Box

I got a new to me EHX DMM in very good condition. I am not familiar with the different variations of this pedal.

I got the 90's reissue that were distributed packed in a nice wooden box instead of the garden variety carton box. Mine has the external power supply adapter and the vintage style knobs. It is also nice as it is not the later true bypass model.

This one appears to have seen little use and still has the manufacturers papers in the box.

Many users pay money to have their non-true bypass DMM modded for true-bypass.

There are other users however who believe that the buffer of the DMM is one of its desirable features vs. the later reissue big box model with the relay true-bypass circuitry.

Thursday, February 24, 2011

Analogman Sunlion

Analogman Sunlion
Serial No. 178
November 2006

The Analogman Sunlion is a Sunface Fuzz and Beano Boost in one pedal housing. This specific pedal has all White Dot NKT-275 transistors.

These are based on two classic circuits (Fuzz Face and Rangemaster Treble Booster) that are excellent as individual stand alone pedals. Combined as in the Analogman Sunlion, they provide a 3rd entity that is similar in gain character to the classic 3-transistor Vox Tone Bender circuit.

Having the Analogman Sunlion is like having a Rangemaster Treble Booster (Beano Boost) an expertly-tuned Arbiter Fuzz Face (Sunface) and a 3-transistor Vox Tone Bender (Sunlion).

The Beano Boost compliments the Sunface very well. It functions as a boost and an adjustable tone filter that helps concentrate the fuzzed signal into a more focused and cutting tone.

The gain code letters on the NKT-275 in the sunface are 'J' and 'Q'.