This is my latest F5 amplifier build.
Its my traditional Tower F5 amplifier so far i have built 3 of them the last one with bias indicator of each channel.
As usual it hase two big can 47 000uf Italian Kendeil capacitors plus 4pcs 10 000uf Rubycon capacitors to boost bass performance.
I powered it with 300va transformers , i use 300va transformers in all my F5 amplifier and up to now i find 300va sufficient for F5 . The amp chassis meanwhile it is the only heatsink on the amp roated on the granite bottom with 2cm tick.
It has integrated pre amplifier with two opa627 op-amp with 10dB also remote control of Sony protocol with Alps motorized potentiometer.Tower has 2 independent input you can sellect them fom remote.
the output mosfets are Toshiba 2sj201 and 2sk1530 and i find them more colorfull over irfp series.
For those who want to control his systeam with remote i offer control board or remote on eBay
here it is
Remote Volume Controll Board 4 Channels Monitor In | eBay
Also F5 pcb board avaliable in my listings on eBay.
For more bykoz diy products please visit baykoz elektronik audio & video servis
Thank you
Its my traditional Tower F5 amplifier so far i have built 3 of them the last one with bias indicator of each channel.
As usual it hase two big can 47 000uf Italian Kendeil capacitors plus 4pcs 10 000uf Rubycon capacitors to boost bass performance.
I powered it with 300va transformers , i use 300va transformers in all my F5 amplifier and up to now i find 300va sufficient for F5 . The amp chassis meanwhile it is the only heatsink on the amp roated on the granite bottom with 2cm tick.
It has integrated pre amplifier with two opa627 op-amp with 10dB also remote control of Sony protocol with Alps motorized potentiometer.Tower has 2 independent input you can sellect them fom remote.
the output mosfets are Toshiba 2sj201 and 2sk1530 and i find them more colorfull over irfp series.
For those who want to control his systeam with remote i offer control board or remote on eBay
here it is
Remote Volume Controll Board 4 Channels Monitor In | eBay
Also F5 pcb board avaliable in my listings on eBay.
For more bykoz diy products please visit baykoz elektronik audio & video servis
Thank you
Attachments
Well, guess I'll look at ur photos before they're taken down and your DIY license revoked. Of course if Nelson and the rest of the F5 thread contributors did it for you I guess its not really DIY.
I can appreciate that you built your own phono pre and the remote but you cant go selling the F5 design without permission and if you've got permission then please say so. I kinda doubt it.
I can appreciate that you built your own phono pre and the remote but you cant go selling the F5 design without permission and if you've got permission then please say so. I kinda doubt it.
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The Tower 100% diy product according to the diy acceptance in this territory.
Once the permission was asked to Mr. Pass, and his reply is you can sell the boards while anything related to Pass Labs doesnt occur on the boards.
If anything helps the diyers, we are in it,
please look at the F5 board's price , the only intention of us is to help F5 diyers Mr. udailey .Best Regards Mr. udailey
As i said mr. udailey my intention are no further than DIY , in this regards i have been helping the diyers in my country over 10years and after now i am intendet to help people in abroad.
One more again very thanks to mr. Pass for letting diyers to use his great F5 , it can compete with many tubes amp in mid range.
Sincerely
Original Pearl Phono Stage
It has been a several years since I finished my Pearl Phono Stage. I am happily still using it. I realized that I never posted any photos here.
This was built with a 'group buy' kit that fellow member Promethius organized, using an unknown brand black steel case bought from another member here, and a basic black aluminum case for the power supply. I used an Avel transformer. I originally planned to have blue LED lights for each channel to indicate power, but I never bothered.
It has been a several years since I finished my Pearl Phono Stage. I am happily still using it. I realized that I never posted any photos here.
This was built with a 'group buy' kit that fellow member Promethius organized, using an unknown brand black steel case bought from another member here, and a basic black aluminum case for the power supply. I used an Avel transformer. I originally planned to have blue LED lights for each channel to indicate power, but I never bothered.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Don't use only a fan as cooling. My Zen 9 has fairly large heat sinks, and I can only hold my hand on it for 10 seconds. It's very hot! anything bigger than my heat sinks is better.
Zen 9 - My Photo Gallery
Zen 9 - My Photo Gallery
These things are cheaply made and the failure rate is high. If the bearings don't wear out first, then dust will gum it up.
Lots of high performance computer video cards self destruct because of these fan failures.
Fit a a temperature switch to the heatsink.
Switches off the mains at set temp and stays off till the sink cools a bit usually around 10C of hysteresis.
You can "adjust" the OFF temp by locating the switch very close to the output devices, or way out at a distant corner of the heatsink, or somewhere in between.
This is an example of what Andrew describes. It's on a water block but the function is the same. This unit opens ~ 78 C and has tripped only once when the fan power (small DC transformer) was separated from mains circuit - and I forgot to turn it on
See post #105 LC Thread for more info.
There is a wide range of target temps available.
Link to MOUSER PAGE
See post #105 LC Thread for more info.
There is a wide range of target temps available.
Link to MOUSER PAGE
