Tuesday Tube : 10 Raytheon 4-Pillar

Another version of 10 tube with Oxide-Coated filament.

One of the best design and supported structure.

Raytheon 4-Pillar series have special design 

that tube lovers want to keep in their collections.

Red sticker of 4-Pillar was unique and always attractive.

Less transparent when compare with mesh plate 210 

but more impact and larger scale of music instruments.

Collective item with awesome sound too ;) 

Monday Modify : Revise PreAmplifier for F2a Push Pull Amplifier

Having plan to change components for my 210 tube PreAmplifier.

Want to make more transparent to F2a Push Pull Amplifier.

Monday Modify : Continue With NEC Mono-Block Part 3

Just hear the sound from these Siemens F2a mono-block amplifiers.

After finish assembly these amplifiers. I've found the problem with "Hiss" sound 

and try to discover the main cause.

Not from ground-loop or components but I missing "Grid Stopper" 

on WE409A/6AS6 the driver tubes.

Problem's gone when install carbon composition resistors on their grids.

Waiting for spray their cover part to complete the look.

So my cat fell asleep with the sound from this amplifiers. ZZZzzz

Monday Modify : Continue With NEC Mono-Block Part 2

Already install all components into both chassis.

Waiting for some parts on the panels.

Hope to finish and hear the sound soon :)

Style Style & Style : Cool Idea from IKEA products

After finding out furnitures for my house, I just found this cool website.

http://www.ikeahackers.net/

Many smart ideas for mix and match IKEA products together.
Also adapt products to use in different applications.
And I found this exciting style too ...

http://www.ikeahackers.net/2014/05/high-end-audio-with-furutorp.html

More pictures here

http://www.holgerbarske.com/fflight2014/index.html

But I cannot found this product on my local IKEA store :(

Old School Tangential Tonearm : Rabco ST-4

After using in  fair condition for a long time. 

My Rabco ST-4 " Straight Line Tracking" turntable should be need a new plinth.

Highly recommend to use with  thick cantilever cartridge like Shure M3D/M7D 

and others in same era.

Also match with legendary Jazz & Blues.

Thanks http://wegavision.pytalhost.com/ for this rare catalog.

 

Monday Modify : Continue With NEC Mono-Block

From my previous post

http://mellowgroovy.blogspot.com/2014/03/the-lost-world-nippon-electric-company.html

It's time to start up new design amplifier project 

with original main parts of NEC Mono-Block.