Clone Goldmund Amplifier

[tcqanh]

You lot forget that the case of the Telos 1000 is the heatsink.
~10,000 square centimeters of surface (aka ~600 sq in.)

V1 here also use the case is heatsink. and I can feel big heat of front panel after 1-2 hours running.

maybe only V2 heatsink is larger than 2 V1 heatsinks together ?

V2 heatsink is isolated or connected to chasiss ?

 

[henryluu]

Using the case as heatsink is a good idea for V2. Since V2 is equipped with a remote control volume and selector, users will not likely to touch the case anyway. Also, it would be nice for a warm touch

 

[datjblvietnam]

Do you have more photos of inside of this original amp?

yea , i have , you can see

 

[oDoh5]

Hi Hien,
Using Panasonic FC Cap to boost the mid-low and ROE Cap in power supply to boost the mid-high.

 

[trinhanhtu]

Oh... VietNam???

 

[tommy1000]

yea , i have , you can see

Thank you. What is the gray large component in the picture?
Do you have close up pictures of the PCBs?

 

[mlloyd1]

looks like relays

mlloyd1

Thank you. What is the gray large component in the picture?
Do you have close up pictures of the PCBs?

 

[jacco vermeulen]

Relays, same ones as used in the 600 Telos.

 

[HDaudio]

OH.! So beautiful!
Good luck to Hien !

 

[fortheking]

... so many "chân gỗ" ...

 

[cfan]

Hi bazouka

I try to use components on the circuit is the best.
The price of this amplifier is not very high

I can not buy MOSFET Goldmund 10N20 and 10P20, but instead I found with 2SK2221 and 2SJ352
Power diode: I use STTH6002, it differs Goldmund
Opam:I used AD 811,AD797,AD706J-SMD,AD586JN,OPA134,OPA2134,...
BJT: 2N5551,2N5565,FZT857,FZT957,...
Capacitor: Philips BC, Vishay BC,Wima,...
Resistor: Dale, SMD-MF(Panasonic).
Mosfet 8 pcs/1 chanel
Power transformer: 1000W
....


Have you checked here for the MOSFET:

Lateral Mosfet

 

[datjblvietnam]

I not think this is relays , this is Current sensor , this is parts CSNP661-002 ,you can see picture and datasheet and connect on PCB
CSNP661-002 - Tìm với Google

 

[datjblvietnam]

I not think this is relays , this is Current sensor , this is parts CSNP6621-002 ,you can see picture and datasheet and connect on PCB

 

[tommy1000]

I not think this is relays , this is Current sensor , this is parts CSNP6621-002 ,you can see picture and datasheet and connect on PCB

Thank you very much. I have never seen this type before. Can you e-mail or PM me the complete schematic of this amp please?

 

[cfan]

This is the link of the MOSFET you are looking for:

"http://www.profusionplc.com/pro/gex/prodGen.html?prdtyp=lateral%20mosfet"

 

[jacco vermeulen]

CSNP661-002

Cool, me figured it had to be a solid state relay, but using a hall effect sensor instead as part of a peak current protection is a pretty smart idea.
Really fast, and leaves the PS output impedance intact, just make me wonder what part does switch off the current (big fckr MOSFET next to it ?) .

 

[hien.t.nguyen]

V2 pictures.

 

[princenk007]

very nice finish. . . . .

 

[princenk007]

hien.t.nguyen, which is the Goldmund amplifier model , you clone in the beginning of this thread?

 

[hien.t.nguyen]

Power Supply for V2