Search found 56 matches

by bmaximus
Oct 12th, '15, 17:06
Forum: Yocto v1.0 Hardware
Topic: Noise section trimmer voltage?
Replies: 81
Views: 66004

Re: Noise section trimmer voltage?

Update: I've bought a true rms multimeter. Unfortunately the result isn't changed. Then i've decided to try the new configuration contained in the service manual of the true TR-808. The results was not the best. I've got a much higher current, but hardly adjustable by trimmer, because of the curve t...
by bmaximus
Oct 5th, '15, 06:25
Forum: Yocto v1.0 Hardware
Topic: Yocto PSU
Replies: 24
Views: 20654

Re: Yocto PSU

You might have been able to remove a couple of diodes from your dc supply - making it an ac supply. I thought about it, but the switching power supplies are in welded plastic. Should be sawing the body, hoping not break anything, remove the diode bridge, paste it. So i've decided to buy another one...
by bmaximus
Oct 4th, '15, 09:20
Forum: Yocto v1.0 Hardware
Topic: Yocto PSU
Replies: 24
Views: 20654

Re: Yocto PSU

I've the same problem. Before I bought by mistake a power supply with 15VDC output, because in this forum is indicates a link of Mouser site, which is not absolutely clear about the type of power supply sold. I contacted Mouser and they confirmed that the wall power supplies aren't available with ou...
by bmaximus
Sep 30th, '15, 11:15
Forum: Yocto v1.0 Hardware
Topic: TUTO: How to get a Full Yocto v1.0 Kit
Replies: 116
Views: 228462

Re: TUTO: How to get a Full Yocto v1.0 Kit

Go to your Mouser basket and check that you get 111 parts and Check out. You can add to your basket 15VAC 1000mA wall mount AC psu if you need one too. Warning! This link take to a list of power supplies with output in VDC. I have not checked the datasheet and now i have a 15 VDC output power suppl...
by bmaximus
Sep 29th, '15, 08:17
Forum: Yocto v1.0 Hardware
Topic: Noise section trimmer voltage?
Replies: 81
Views: 66004

Re: Noise section trimmer voltage?

Hi everybody, I've started assembly of the Yocto and i've encountered a similar problem. My cheap multimeter isn't stable in metering of mV in AC. With the resistor R127 of 4.7k i read approximately 80 mV or less, so i've swapped R127 with a multiturn trimmer and, with a value of 850 ~ 1.5K i've the...
by bmaximus
Sep 28th, '15, 06:44
Forum: Yocto v1.0 Hardware
Topic: TUTO: How to get a Full Yocto v1.0 Kit
Replies: 116
Views: 228462

Re: TUTO: How to get a Full Yocto v1.0 Kit

Greetings to everybody from Rome! Let me introduce myself, my name is Massimo, I am 47 years old and this is the most challenging DIY project I've ever attempted to realize. For now, the biggest difficulty is to have all components from Mouser. I've ordered the material more than two weeks ago and s...