I'm using the BYV27's, but not with any snubber since I don't know how to calculate an RC-link.

The caps are: 2x2200uF Panasonic FC + 2x2200uF Vishay BC. Diodes are BYV27-150 soft recovery incl those protecting the LM317T. Fuse is 800mA slowblow. Electrolytes decoupled by one 0,22uF and one 0,1Uf for each cap except for the 10uF cap that's deoupled by a single 0,1uF. Decoupling and...

Done with it now except for casing. Bottom view: Side view: Other side, you can see the Supra LoRad 3x2,5 mainschord. Simple setup so I can listen, this is clearly one of the greatest improvements since I started modifying the Btech

Quick question, since there's no room in the box I bought anyway...would it be beneficial to put 2 Panasonic FC 470uF after the Panasonic FC 2200uF? Or would it be better to add two of my other low ESR 2200uF? Also I've heard a million times about the benefits of putting 0,1uF Wima's over the...

Quote: http://tangentsoft.net/elec/tread/ Thanks for the tip! However I think I'm doing allright with experimentboards and hardwiring. /Mayday

The resistor values seems to up the wall, I used an online calculator at : http://www.unisonus.com/projects/sim_supply.htm the values I got from that might not work in this circuit. Yes they will, nothing wrong with it, just me being stupid. R1 = 220ohm, R2 = 3Kohm gives 18,3V....I've...

Will this work? R1 = 220ohm, R2 = 2.2Kohm for +16Vdc Can I use MKT's for C-in and C-out , and an electrolytic for C-adj? What size does the resistors have to be? I've got 1/4W, 1W and 3W 1% metalfilm

Side view with the casing I'm not going to fit it in, have to find something else. Top view, crappy photo.

I have now soldered the transformer, diodes(UF4007) and 2 Panasonic FC 2200uF. Measured Voltage on the last cap(before I placed the bleeder that's in the picture), and I got +24Vdc without load. As you can see I haven't cut off the leads yet, wanted to test it first.

Forgot, I also have 1N4148 fast recovery diodes, and 1N5819 Schottky diodes.

error401: Thank, I'll look at that when my head isn't full of cotton due to a nasty flue. Still I've actually started soldering it today.

I think I've done all that I can on the BT928 itself, so now I'm building a stabilized PSU for it. Actually I'm thinking of giving the BT928 a bit more than 15V, maybe around 16-20V. Anyways this is what I've collected so far. Transformer 2x15V~ 20VA LM317T regulator Diodes: 1N4007...

Ok, thanks! =)

With the power on the secondarys at 25V~ MUR820IR should be fine right?

I have a little project going on the side that requires 32 pcs of MUR860 diodes, however I can't seem to find any here in Sweden... Does anyone know a good substitue for these that will fit a PCB made for MUR860's. Any help appreciated! /Mayday

Quote: Originally Posted by Nisbeth Elfa has Elna RJH as well (not too many values though). They'll do just fine in a pinch /U. Just checked in my box of caps, and I have 2 x 2200uF/35 Elna RJH. So now I have even more to try out.

I've got a few UF4007 coming, these are a ultra fast version of 1N4007 I was told. Are they pherhaps the best choice? /Mayday

Quote: Originally Posted by Pars I'd use Schottky's, something like 11DQ10 or 31DQ10 depending upon voltage/current requirements. The 11DQ10s work quite nicely in stuff like CDPs, etc. and the 31DQ10s for preamps, etc. (I used these in my Dynalo). Digikey carries these. With Schottky's...

Any recommendations on a good rectifier bridge then?

I'm going to build a 15V stabilised PSU for my B-Tech BT928. I've got the trafo, caps and regulator sorted, but I can't decide on what type of diodes to use as rectifiers...I've got: BYV-27 soft recovery diode 1N4007 rectifier diode 1N4148 fast recovery diode 1N5819 Schottky diode What...

Yes they are, and no too expensive. /mayday

Found some interesting Panasonic FM's on farnell. Thanks! /Mayday

Quote: Originally Posted by Yen Farnell has big range of Os-cons too, but not over 30V. Is there 50V oscons? I honestly don't know.

Hi! Yes, but not in the values I'm looking for....maybe the don't make for ex 470uF/50Vmin.?

What are your thoughts on these caps? I've read some good things about them and I found them at a reasonable price att a Swedish webshop. I've had no luck finding Panasonic FM caps(supposed to be good right?). Also I was wondering where I could find a supplier that has OS-CONS in a wide...