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Old 26th January 2013, 09:31 PM   #71
Telstar is offline Telstar  Italy
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Quote:
Originally Posted by Leakstereo20 View Post
I am perhaps too late out because the number of DIY electronic girls and boys has plummeted during the last two decades.
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"The total harmonic distortion is not a measure of the degree of distastefulness to the listener and it is recommended that its use should be discontinued." D. Masa, 1938
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Old 27th January 2013, 11:32 AM   #72
Gudmund is offline Gudmund  Iceland
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Default The End mk.3.1 modules

The End mk.3.1 main PCB 60mm x 107mm at TUBEAMP

Picasa Web Albums - vbkolsen - The End mk. 3...
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Old 30th January 2013, 02:09 PM   #73
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Default Price estimate

L.C. Audio is looking for material used to The End mk.3.1 ....alternatively Millennium.

Is there still files and material for the two DC amplifiers, they try to return with a price estimate.
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Old 6th February 2013, 05:01 PM   #74
Gudmund is offline Gudmund  Iceland
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Join Date: Feb 2010
Default Replacement transistors

Anyone who knows replacement transistors for the discontinued Sanken 2SC2922 and 2SA1216?

2SC3722K smd seems to have data like 2SC2240 exept for the noise.
0,2dB/100uA for 2SC1455 and 0,5dB/100uA for 2SC2240
2SA1455 smd with data as 2SA970 ...exept for the noise.

2SA970/2SC2240 could be used as input pair in The End mk.3.1??

The End mk.3 PCB:

https://picasaweb.google.com/vbkolse...81461722260994

The End mk.3 schematic:

https://picasaweb.google.com/vbkolse...25839818957314
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Old 7th February 2013, 02:46 PM   #75
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Join Date: Oct 2011
Location: Close to Copenhagen
Quote:
Originally Posted by Gudmund View Post
Anyone who knows replacement transistors for the discontinued Sanken 2SC2922 and 2SA1216?

2SC3722K smd seems to have data like 2SC2240 exept for the noise.
0,2dB/100uA for 2SC1455 and 0,5dB/100uA for 2SC2240
2SA1455 smd with data as 2SA970 ...exept for the noise.

2SA970/2SC2240 could be used as input pair in The End mk.3.1??
Not sure that Sanken 2SC2922 and 2SA1216 are discontinued.

Not sure whether "2SA970/2SC2240 could be used as input pair in The End mk.3.1??" ....either?
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Old 22nd February 2013, 08:03 PM   #76
Cuda is offline Cuda  France
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http://products.semelab-tt.com/magnatec/bipolar.shtml

MG633x/MG941x ?
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Old 11th March 2013, 06:16 PM   #77
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Quote:
Originally Posted by Cuda View Post
...have looked at the site you mentioned. I have never heard of or used any Semelab transistors like the above listed types.
I was looking for the ring-emitter types for output, because they are fast and linear. Secondly because the MT200 house indicates a good heat dissipation due to the large metal plate.
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