GB for F6 Convertible Clone boards - Page 11

PKI · 30th January 2013, 07:22 PM

There are not many resistors in the amp, so we can try some nice parts, I guess. At least I would try PRP and these naked TX2575(but I do not like the idea of a resistor without a casing, though :-).

It would be great to make GB for SumR's and resistors, you can count on me, Buzz! Thanks :-)

gmant123 · 1st February 2013, 12:43 AM

GB for power transformer here:

Primrose(SumR Audio) Toroid GB

For F6 stereo 400VA is ok..

Thank you Buzz!!

cjkpkg · 1st February 2013, 01:12 AM

Got my boards and they are beauties!!!

My cinemags shipped this week too. I have a nice new quad of irfp240 and the jfets.

Time to place another mouser order and get soldering.

Tea-Bag · 3rd February 2013, 07:57 PM

Good day all. It's superbowl Sunday, a national holiday almost here.

All of the paid F6Convertible board payed orders have been sent.
If you did not recieve a stamps dot com email notification, let me know - so I can confirm it is sent.

I do have additional boards available as well if anyone is interested.

Tea.

Ryssen · 3rd February 2013, 08:21 PM

Got my boards.

Marra · 6th February 2013, 05:19 PM

Thanks Mike my boards arrived this morning

PKI · 6th February 2013, 05:28 PM

Just to show how cool the boards are:

:-)

cjkpkg · 6th February 2013, 08:24 PM

I am psyched!!! My Cinemags arrived on Monday and I ordered all the stuff from Mouser yesterday...should be delivered tomorrow.

Just need to tap some holes in the sinks and I should be good to go.

Only major issue is that I am using a PSU designed for a different amp. Currently it runs at 32V running at about 150mA per channel. Jacked up to 1.5A per channel I suspect around 28V according to PSUD.

I have enough jfets to run cascoded, 28V will be pushing it for the 2sj's.

buzzforb · 6th February 2013, 08:27 PM

What is the VA rating of your toroid? 28v wil not hurt the FE Jfets at all, assuming you degenerate them.

Tea-Bag · 6th February 2013, 08:34 PM

Maybe run two pairs parrallel and degenrate them. But I would not let the voltage be the limiting factor.
Just bias lower to start.

Quote:

Originally Posted by cjkpkg

I am psyched!!! My Cinemags arrived on Monday and I ordered all the stuff from Mouser yesterday...should be delivered tomorrow.

Just need to tap some holes in the sinks and I should be good to go.

Only major issue is that I am using a PSU designed for a different amp. Currently it runs at 32V running at about 150mA per channel. Jacked up to 1.5A per channel I suspect around 28V according to PSUD.

I have enough jfets to run cascoded, 28V will be pushing it for the 2sj's.

Quote:

Originally Posted by buzzforb

What is the VA rating of your toroid? 28v wil not hurt the FE Jfets at all, assuming you degenerate them.

1st February 2013, 12:43 AM	#102
gmant123 diyAudio Member Join Date: Dec 2009	GB for power transformer here: Primrose(SumR Audio) Toroid GB For F6 stereo 400VA is ok.. Thank you Buzz!! __________________ Analog as the sound of the nature....

3rd February 2013, 07:57 PM	#104
Tea-Bag not politcally affiliated diyAudio Member Join Date: Feb 2006 Location: Kennebunk Blog Entries: 7	Good day all. It's superbowl Sunday, a national holiday almost here. All of the paid F6Convertible board payed orders have been sent. If you did not recieve a stamps dot com email notification, let me know - so I can confirm it is sent. I do have additional boards available as well if anyone is interested. Tea. __________________ Salas Boards 2013 #2 CLICK HERE \| F6 Covertible PCB GB Boards Available \|DCB1 boards and KITS available PM\|SemiSouth R125, R100, R100A Available CLICK HERE \|F5TC Boards Sign UP CLICK HERE

3rd February 2013, 08:21 PM	#105
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Got my boards. __________________ Regards Åke

6th February 2013, 08:27 PM	#109
buzzforb diyAudio Member Join Date: Oct 2010 Location: Burlington, NC	What is the VA rating of your toroid? 28v wil not hurt the FE Jfets at all, assuming you degenerate them. __________________ \|F6 Kit/Trasnformer GB Sign up sheet Closed,\|Primrose GB Sign Up sheetClick Here ...Shape the sound , Man!

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30th January 2013, 07:22 PM	#101
PKI diyAudio Member Join Date: Aug 2011	There are not many resistors in the amp, so we can try some nice parts, I guess. At least I would try PRP and these naked TX2575(but I do not like the idea of a resistor without a casing, though :-). It would be great to make GB for SumR's and resistors, you can count on me, Buzz! Thanks :-)

1st February 2013, 01:12 AM	#103
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	Got my boards and they are beauties!!! My cinemags shipped this week too. I have a nice new quad of irfp240 and the jfets. Time to place another mouser order and get soldering.

6th February 2013, 05:19 PM	#106
Marra diyAudio Member Join Date: Nov 2009 Location: Near Lincoln	Thanks Mike my boards arrived this morning

6th February 2013, 05:28 PM	#107
PKI diyAudio Member Join Date: Aug 2011	Just to show how cool the boards are: :-)

6th February 2013, 08:24 PM	#108
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	I am psyched!!! My Cinemags arrived on Monday and I ordered all the stuff from Mouser yesterday...should be delivered tomorrow. Just need to tap some holes in the sinks and I should be good to go. Only major issue is that I am using a PSU designed for a different amp. Currently it runs at 32V running at about 150mA per channel. Jacked up to 1.5A per channel I suspect around 28V according to PSUD. I have enough jfets to run cascoded, 28V will be pushing it for the 2sj's.

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