Zen V9 with Peter Daniel & Veteran boards

[sts9fan]

Can somebody explain C5 in the PS for me? I have the boards and all the parts but this cap does not seem to be on the schematic from veteran.

Thanks

 

[thomaseliot]

Can somebody explain C5 in the PS for me? I have the boards and all the parts but this cap does not seem to be on the schematic from veteran.
Thanks

Hi,

I found the cap in one part list from GEWA. It is not in Veteran's schematic, but on PS board there is a symbol of a cap on output side.

I used this because usually, in PS, there is always a small 0.1uF cap to filter hi-freq.


Neil,

sumptuous objects in your site. I'm sure you'll be really impressed with Zen+Jordans. Where can I find those nice VUmeters?

 

[dviswa]

Hi Guys,

I am planning on using FRED diodes (DIGIKEY DSEI30-06A-ND) for the supply. Can somebody who has used descrete diodes (TO-247) please tell me if the they need heat sink.

Thanks,
Dinesh

 

[sandstorm33]

Hi-Anybody have spare boards for the ZV9??? Have money or toroids for trade!!! #1 2x28vac 1.68amps #2 2x22vac 1.28amp #3 2x18vac (hafler d110) All are new with washers and mtg discs. Also 20uf polypro's .

 

[meanman1964]

What toroid do I need for my ZV9?What't the max-Ac-voltage that I could use?

 

[thomaseliot]

An externally hosted image should be here but it was not working when we last tested it.

TRANSFO "R" 500VA 2X36V

This is what I would have bought. Discovered too late...

 

[doggy]

Transformer

I have a plitron trans. from a 4780 gainclone, what range of power supply voltage can be used for this amp? and what is a workable va rating?

Thanks, Looking for a new project, just finished an A30

 

[thomaseliot]

Re: Transformer

I have a plitron trans. from a 4780 gainclone, what range of power supply voltage can be used for this amp? and what is a workable va rating?

Everybody used a 50VDC PS with 150VA to 300VA for each channel.

 

[meanman1964]

Everybody used a 50VDC PS with 150VA to 300VA for each channel

I have 2 toroids of 2x30V/300VA,are those suitable to use?

 

[thomaseliot]

Re: Everybody used a 50VDC PS with 150VA to 300VA for each channel

I have 2 toroids of 2x30V/300VA,are those suitable to use?

You get ~20% less than max ZV9 power that is 14W.

 

[farl]

Can i use 15000uf for C1 (output caps) instead of 10000uf. I have this one from my Marantz receiver power supply and I want to use it. It is Elna for audio 15000uf 63V.

Thanks

 

[vatofale]

/snip

TRANSFO "R" 500VA 2X36V

This is what I would have bought. Discovered too late...

That looks like a very nice transformer, any idea who makes them - I need a 240V version

 

[thomaseliot]

That looks like a very nice transformer, any idea who makes them - I need a 240V version

Just click on the blue link in your post.

Here are manufacturers


http://www.kitamura-kiden.co.jp/english/products_e.html

http://www.custommag.com/products/r-core.shtml

http://www.rn-core.com/english/products/sort285.asp

Can i use 15000uf for C1 (output caps) instead of 10000uf. I have this one from my Marantz receiver power supply and I want to use it. It is Elna for audio 15000uf 63V.

I remember somebody have used 15.000uF.

 

[meanman1964]

I've a question about Q5(ZTX450)what replacement can I use without changing values of other components but when it's needed what need to be changed?

 

[Babowana]

I've a question about Q5(ZTX450)what replacement can I use without changing values of other components but when it's needed what need to be changed?

Any small signal npn tr satisfying the followings is useful:

• The same leg marks (ref. to the attached figure)
• Max. Vceo rating greater than 30V
• Max. power dissipation rating greater than 600mW
• Min. dc current gain of 25 or greater (min hFE of ZTX450=100)
• Similar physical size as ZTX450
• The black-color body

I have used KSP42 with success.

Cheers,

 

[meanman1964]

Do the output fets need to be matched?

 

[twitchie]

Any small signal npn tr satisfying the followings is useful:

• The same leg marks (ref. to the attached figure)
• Max. Vceo rating greater than 30V
• Max. power dissipation rating greater than 600mW
• Min. dc current gain of 25 or greater (min hFE of ZTX450=100)
• Similar physical size as ZTX450
• The black-color body

I have used KSP42 with success.

Cheers,

Thanks for this information Babo. I always feel ripped of for whatever reason when I use ZTX450 and ZTX550, so if I can use 2N5088 (npn and fits all the criteria you mentioned) I'll try it.

ZTX450 is about 8-10x more money than the 2N5088 at digikey

Thanks and good to see you up and about