Is anyone building the DIY Pass F-5

Russellc · « **on:** 20 Aug 2010, 01:17 pm »

Recently finished this one, and what a gem it is. I've seen interest in the B-1 here, this is the next step. Pics this eve.

Russellc

sts9fan · « **Reply #1 on:** 20 Aug 2010, 01:34 pm »

I have all the parts. I plan to one day put it in my ZenV9 box.

poseidonsvoice · « **Reply #2 on:** 20 Aug 2010, 02:09 pm »

Quote from: sts9fan on 20 Aug 2010, 01:34 pm

I have all the parts. I plan to one day put it in my ZenV9 box.

Me too. I have Cviller's boards along with Peter Daniel's Universal PS boards. I also have the boards for the F4, Aleph 30, and Aleph J-X. My Direct Coupled B1 boards are coming and that will be built before the amps though.

The Class D SDS254 amp is currently on the soldering bench.

Too many projects and too little time.

Anand.

sts9fan · « **Reply #3 on:** 20 Aug 2010, 03:09 pm »

I have peter's boards. I wish I had the others as they are MUCH roomier. I did a bit of a board purge a few months ago. Only have the F5 and F4 left. Nobody wanted the F4 boards. I also have peters PS boards I just need to figure them out.

Kris

poseidonsvoice · « **Reply #4 on:** 20 Aug 2010, 03:29 pm »

Figuring out Peter's PS Boards is simple.

See picture below to understand the regulator portion of his PS board (just a conventional series regulator):

You can bypass the regulator section with (4) 0.47 ohm Panasonic resistors which is what I do, as
I use them as a CRC power supply. I don't use the regulator section as I am fully saturated with Paul Hynes' or Salas' shunt regulators, and I use the shunt regulator at the output of the CRC supply. Think of the CRC section as a 'pre' regulator. In one instance, like in my Katalyst power supply, I replaced the resistor with a choke for an added sonic benefit. It became a Pi filter or CLC supply then.

The board is very flexible as it can use 3 terminal diodes or conventional 2 terminal diodes. I use the MUR3060 which are 3 terminal ultrafast diodes.

Further info here.

Best,
Anand.

toxteth ogrady · « **Reply #5 on:** 20 Aug 2010, 06:09 pm »

Christ, this is addictive.

I've dabbled in diy, but never like this. I've just put together a class d amp, right after building my turntable and the resonating speakers I built before that. Yesterday I ordered dcB1 buffer boards and today I'm going to order the Lighter Note LDR kit. Now this?!?

I'll buy the boards from Peter and join in once I finish the buffer and LDR kit. Looking forward to see how this thread progresses!

sts9fan · « **Reply #6 on:** 20 Aug 2010, 06:31 pm »

I am really waiting for Nelson to put out the plans for one of the crossovers.

chlorofille · « **Reply #7 on:** 20 Aug 2010, 07:24 pm »

Hi guys,

I plan on building the F5 by point to point wiring. Current limiting circuit and thermistors will be removed too =)

Getting the matched Jfets will be tricky though.

Russellc · « **Reply #8 on:** 20 Aug 2010, 09:18 pm »

Quote from: sts9fan on 20 Aug 2010, 03:09 pm

I have peter's boards. I wish I had the others as they are MUCH roomier. I did a bit of a board purge a few months ago. Only have the F5 and F4 left. Nobody wanted the F4 boards. I also have peters PS boards I just need to figure them out.

Kris

ask away about Peter's F-5 boards, that's what I'm using and if you followed any of my build on DIY and AK, you'll see I asked about every stupid question concerning them!

Russellc

Russellc · « **Reply #9 on:** 20 Aug 2010, 09:20 pm »

Quote from: chlorofille on 20 Aug 2010, 07:24 pm

Hi guys,

I plan on building the F5 by point to point wiring. Current limiting circuit and thermistors will be removed too =)

Getting the matched Jfets will be tricky though.

Check with member Blues over on DIY.

Russellc

Russellc · « **Reply #10 on:** 20 Aug 2010, 09:24 pm »

Quote from: toxteth ogrady on 20 Aug 2010, 06:09 pm

Christ, this is addictive.

I've dabbled in diy, but never like this. I've just put together a class d amp, right after building my turntable and the resonating speakers I built before that. Yesterday I ordered dcB1 buffer boards and today I'm going to order the Lighter Note LDR kit. Now this?!?

I'll buy the boards from Peter and join in once I finish the buffer and LDR kit. Looking forward to see how this thread progresses!

I think I got the last of Peter's F-5 boards, but it hasnt arrived yet. I think Cviller still has some, but there in transit back to Denmark and should be available again shortly. Also the Tech-DIY store is supposed to be coming out with kits for the F-5 and a few others. It is well worth building! I also have the B-1, and have recently received boards for the DC B-1 group buy on DIY.

russellc

Russellc · « **Reply #11 on:** 20 Aug 2010, 09:25 pm »

Quote from: sts9fan on 20 Aug 2010, 06:31 pm

I am really waiting for Nelson to put out the plans for one of the crossovers.

I'm still waiting for the Pearl 2 article. Have the boards and all the matched fets, it is supposed to be released shortly.

Russellc

Russellc · « **Reply #12 on:** 20 Aug 2010, 09:28 pm »

Quote from: poseidonsvoice on 20 Aug 2010, 03:29 pm

Figuring out Peter's PS Boards is simple.

See picture below to understand the regulator portion of his PS board (just a conventional series regulator):

You can bypass the regulator section with (4) 0.47 ohm Panasonic resistors which is what I do, as
I use them as a CRC power supply. I don't use the regulator section as I am fully saturated with Paul Hynes' or Salas' shunt regulators, and I use the shunt regulator at the output of the CRC supply. Think of the CRC section as a 'pre' regulator. In one instance, like in my Katalyst power supply, I replaced the resistor with a choke for an added sonic benefit. It became a Pi filter or CLC supply then.

The board is very flexible as it can use 3 terminal diodes or conventional 2 terminal diodes. I use the also MUR3060 which are 3 terminal ultrafast diodes.

Further info here.

Best,
Anand.

On the F-5 regulators option isnt used. With the F-5, I used 16 MUR 3060 diodes, also 3 legged. They are mounted on Peter's diode boards.

Russellc

sondale · « **Reply #13 on:** 20 Aug 2010, 10:17 pm »

Hi,

I used Peters boards for my F5s removing the thermistors and the current limiting - an excellent sounding amp. At the moment I am listening to some jazz cds through a Buffalo 32 directly into the F5s - glorious.

Just make sure you do not short the speakers!!!

poseidonsvoice · « **Reply #14 on:** 21 Aug 2010, 02:07 am »

Quote from: Russellc on 20 Aug 2010, 01:17 pm

Recently finished this one, and what a gem it is. I've seen interest in the B-1 here, this is the next step. Pics this eve.

Russellc

Okay blabbermouth

, where are the pics you promised? Eager diy'ers wanna lookie

...

Anand.

Russellc · « **Reply #15 on:** 21 Aug 2010, 04:59 pm »

Quote from: poseidonsvoice on 21 Aug 2010, 02:07 am

Okay blabbermouth , where are the pics you promised? Eager diy'ers wanna lookie ...

Anand.

Sorry, we had a good little storm last night and my internet service was knocked out for some time. I'll post in just a few.

Russellc

Russellc · « **Reply #16 on:** 21 Aug 2010, 05:01 pm »

OK, I give up, how do you "manage attachments" and post pics here?

Russellc

Russellc · « **Reply #17 on:** 21 Aug 2010, 05:23 pm »

OK I made a little gallery with a few shots in it. I have pics going from bare boards and pieces of aluminum all the way to finished product. Ditto the B-1!

Russellc

wushuliu · « **Reply #18 on:** 22 Aug 2010, 02:06 am »

Quote from: Russellc on 21 Aug 2010, 05:23 pm

OK I made a little gallery with a few shots in it. I have pics going from bare boards and pieces of aluminum all the way to finished product. Ditto the B-1!

Russellc

She's puuurty. A real looker.

lonewolfny42 · « **Reply #19 on:** 22 Aug 2010, 06:17 am »

Quote

OK, I give up, how do you "manage attachments" and post pics here?

Here you go.....nice job....

DIY Pass F-5 by Russellc

Here's the insides..

Before face plate is attached...

Up and running...

Member of the family....