• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Photo Gallery

Headphone Amplifiers on Lamps

Natural marble, I make all the fixings without visible parts


Headphone Amplifiers on Lamps
 

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Last edited:
headphone tube amp

Finally got this headphone amp project done after a couple of years. I guess I had to wait for retirement to find some time. ;)
Case is made of padouk and walnut, with aluminum top plate.
Voltage regulator tubes (0D3) and 5842 triodes.
Khozmo 50k 48-step attenuator.
Really like what I'm hearing. :up:
 

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Finally got this headphone amp project done after a couple of years. I guess I had to wait for retirement to find some time. ;)
Case is made of padouk and walnut, with aluminum top plate.
Voltage regulator tubes (0D3) and 5842 triodes.
Khozmo 50k 48-step attenuator.
Really like what I'm hearing. :up:

Looks nice. One suggestion: use advantage of a jumper between pins 2 and 7 of VR tubes, to disconnect B+ if a tube is not inserted.
 
Looks nice. One suggestion: use advantage of a jumper between pins 2 and 7 of VR tubes, to disconnect B+ if a tube is not inserted.

Thanks. I'll do that next time I have a chance.
Electrical is a foreign language to me, so there is plenty to learn.

beautiful work Dave.
Glad to see you are getting good at retirement.

Hope to see you soon

thanks Scott. practice makes perfect! :D

Our audio club is having a diy show August 10th. You're welcome anytime.
Seattle/ Puget Sound DIY Show
 
Great project! I restored one a little while ago and it was very rewarding - see the thread on Restoration of Philips B6X63A valve radio from 1956

This guy is a great resource Electronics Old and New by M Caldeira - he has detailed videos on the process of restoring many of these kinds of radios - very methodical and thorough. The schematics of most of those Philips radios can be easily found on the internet.

Excellent work done ^ Congratulations El Sid

I indeed buy recently ~ 70 years old Philips BX690A in incredible clean condition. Great amazing sound quality with connected to the radio audio input TDA1541 modern DAC. It's my mono minimalistic sound system for romantic evenings in the summer , just for audiophile fun :)
 

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Another IKEA chassis and mains transformer cover.
 

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Excellent work done ^ Congratulations El Sid

I indeed buy recently ~ 70 years old Philips BX690A in incredible clean condition. Great amazing sound quality with connected to the radio audio input TDA1541 modern DAC. It's my mono minimalistic sound system for romantic evenings in the summer , just for audiophile fun :)

Nice - it’s in lovely condition! You’re lucky you didn’t have to restore it...
 
I indeed buy recently ~ 70 years old Philips BX690A in incredible clean condition. Great amazing sound quality with connected to the radio audio input TDA1541 modern DAC. It's my mono minimalistic sound system for romantic evenings in the summer , just for audiophile fun :)

Nice. Really enjoy the beautiful craftsmanship of some of the vintage things. Good to see someone with appreciation to keep it going. :)