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Old 11th December 2012, 07:38 AM   #2081
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omg ...Greek patento again ...Way to go Nikos

I presume that you expect drivers to blow every now and then so that is why you have a quick lock on the heatsink and replacing is going to be done fast ....
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Old 11th December 2012, 08:23 AM   #2082
freax is offline freax  Australia
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Originally Posted by nikosokey View Post
Small heatsink for cold sites like Switzerland.
You must choose VAS stage 72 -75 degrees Celsius OR VAS stage 52-56 degrees Celsius.Temperature room 31 degrees Celsius. (Greece Summer edition )

Nice PCB design, what software did you use in the design of this board?
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Old 11th December 2012, 08:40 AM   #2083
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Default Golmund clone

For order pcb post 1491
pcb design member ALEX MM post 1500
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Old 11th December 2012, 08:42 AM   #2084
freax is offline freax  Australia
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Originally Posted by nikosokey View Post
For order pcb post 1491
pcb design member ALEX MM post 1500
Thank you very much
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Old 11th December 2012, 09:02 AM   #2085
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Default Golmund clone

Post 1884-1889 how make changes to improve the amp
This is a very good amplifier.
What I have in mind as my question is to listen the amplifier with authentic transistors 2SK134 -175 , 2SJ49 . there is any difference?
Also never found the original data sheet mimesis 9.2 and the power supply .

Last edited by nikosokey; 11th December 2012 at 09:18 AM.
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Old 11th December 2012, 12:29 PM   #2086
RS232 is offline RS232  United Kingdom
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Humm, 2SK135/2SJ50...
Nice, but the problem is were to get them
How about a transformer with 1500VA and 2x55V ?

Last edited by RS232; 11th December 2012 at 12:32 PM.
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Old 14th December 2012, 07:40 PM   #2087
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Originally Posted by RS232 View Post
Humm, 2SK135/2SJ50...
Nice, but the problem is were to get them
How about a transformer with 1500VA and 2x55V ?
Use 10N20 and 10P20 instead.
You buy them here:http://www.profusionplc.com/pro/gex/...teral%20mosfet
Some £5,- each or so. You gain just a few pennies with the 160V edition.

Nice size for transformer.
Much cheaper is this: VTX-146-625-155 - MULTICOMP - TRANSFORMER, 625VA, 2X 55V | Farnell Norge

As two of theese will make You a nice dual mono amp.
And for the price of just £33.20 for each, it's a killer.
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Old 15th December 2012, 09:46 AM   #2088
AndrewT is online now AndrewT  Scotland
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out of stock.
It's an attention grabbing headline price.
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Old 15th December 2012, 10:25 AM   #2089
RS232 is offline RS232  United Kingdom
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No problems with the transistors I have about 18 pairs of 2SK135/2SJ50.
The same for the transformer I got it for free, it only weighs around 9Kg.
I'm only looking for options, the plan is to use the components that I have in my parts bin without spending a small fortune.
I'm almost done with the chassis and will post pictures in a couple of days

Ric
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Old 15th December 2012, 04:24 PM   #2090
loek is offline loek  Netherlands
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out of stock.
It's an attention grabbing headline price.
If you check delivery:
* 29 will be available for delivery on 17 Jan, 2013
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