[rico]

Hello! Sorry for posting in english, but there are too few topics in english part of the forum. I've got a few questions:
1. Does someone have the second part of "switching matrix" schematic for dual rectifier 3-channel? I have all the sheets, except this one
2. If i build a copy, what power transformer should i use??? From hammonds or some other?? What about choke? Output transformer?
3. Can i substitute those two big blue 220uF 300V capacitors with 220uF 350V or voltage is critical here???
4. Do i need to have GROUND switch with 0.01uF 1000V capacitor or it's not necesarry?

Thank you!!!!

[analogman]

1. Does someone have the second part of "switching matrix" schematic for dual rectifier 3-channel? I have all the sheets, except this one

Ya got it.

2. If i build a copy, what power transformer should i use??? From hammonds or some other?? What about choke? Output transformer?

Someone else knows it, i'm sure.

3. Can i substitute those two big blue 220uF 300V capacitors with 220uF 350V or voltage is critical here???

Yes, you can always substitute Caps by others with a higher voltage rating.

4. Do i need to have GROUND switch with 0.01uF 1000V capacitor or it's not necesarry?

Its not really important to have it. The GND-Switch can reduce hum but it's also a great source for blown fuses and other ugly faults.

Bye

D!RK

[rico]

1. Send it please to me, if u got it - here's e-mail - d_konshin@mail.ru
2. I would like to speak with that "someone"
3. I really don' think so
4. What exactly this switch does?
Thanks!

[Joachim]

Hi!

I really don' think so

Maybe you don't think so, but life is hard and D!RK is absolutely right!

Good Night,
Joachim

[analogman]

 

[rico]

Well, that smile gives a REAL support, thanks

[Joachim]

Well, that smile gives a REAL support

The REAL support is D!RKs post in answer #1. Believe it or not.  And concerning your question on transformers: here are some really experienced Recto experts on the way, and the time will come, that you will get the final answer. But you opened that thread 8 hours ago, so please exercise some patience  

Joachim

[Killigrew]

I used the following once, all from Hammond.
372JX Power Transformer
1650T Output Trasformer
193J Joke

I don't know if its the perfect choice but ist works well

cu

[MetalBasti]

3. Can i substitute those two big blue 220uF 300V capacitors with 220uF 350V or voltage is critical here???
 
- Yes, you can always substitute Caps by others with a higher voltage rating.

This is of course right as long as you do not want to substitute both Caps with only one Cap.
In this case you need a Cap that is able to manage the full suppply Voltage.

[rico]

1.Does those hammond transformers have all te needed wires, or i have to modify it?
2. Shure i mean 2 caps, not one:) I just can't find 220uf 300V caps and i want to substitute them with 220uF 350V caps. If it's okay - i'm happy:)

Thanx!

[rico]

Someone?

[Killigrew]

Just look at the Datasheets and you will find any Info

mfg

[rico]

I don't have that much knowledge to determine something from datasheets. If it's not so hard for ya, please, give me some clue.

[Joachim]

Hi rico,

A transformer is not really a complex part and so the datasheets are quite easy to understand, also with low level skills. Nobody knows better than you e.g. which voltages and currents you need for your project. Compare you power requirements with the wiring data of the transformers in the datasheet and that's it.

However, you can't "modify" a transformer.

Joachim

[Killigrew]

Shure you can modify a Transformer, but you shouldn't do it