Thule Audio Vintage Integrated Amplifier IA-120 (IA120) Schematic wanted - Page 2 - diyAudio
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Old 16th May 2011, 04:23 PM   #11
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schematics from IA70 and IA120 still wanted
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Old 9th October 2011, 09:34 AM   #12
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no news?
In the attachement high resolution images from this amp.
Attached Images
File Type: jpg Thule Audio IA120 front.jpg (109.7 KB, 270 views)
File Type: jpg Thule Audio IA120 Rear.jpg (192.3 KB, 239 views)
File Type: jpg Thule Audio IA120 bottom.jpg (285.7 KB, 221 views)
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Old 15th June 2013, 11:52 AM   #13
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who can scan and post this test report:
https://www.phbibliotek.dk/index.htm...971%3A80852665
(Hi-Fi & elektronik, 1993, nr. 3. Side 28-31 : Acurus DIA-100; Onkyo A-809; Sherwood AI-7010; Thule IA-120)
- although it is written in Danish it is of interest for me.

Maybe a member of this forum could have a schematic:
http://vintagehifi.dk/forum/viewtopic.php?f=569&t=3282

Last edited by tiefbassuebertr; 15th June 2013 at 11:54 AM.
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Old 8th February 2014, 06:57 PM   #14
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any news?
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Old 28th June 2015, 04:14 PM   #15
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schematic still wanted.
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Old 29th June 2015, 04:03 PM   #16
AngelP is offline AngelP  United Kingdom
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Hi, sorry I don't have any schematics, but I just had read through on the Danish link S: THULE IA 50 - integreret balanceret forstærker

I don't know how good your Danish is, but from the comments it seems that a known thing about the early Thule's is that they are "electrolytic cap cookers". The bloggers advised that "all e-caps be replaced, starting with the most obvious/overheated, but be ready to go all the way to even replace the SMDs".

The thread ends with success by just replacing the 100uF e-lytes between the voltage regulators, and the amp came back into life. (For how long though, you may rightly ask yourself). Also, Thule did apparently admit to the design fault and offered a PCB upgrade for a mere DKK 1600.

Anyway, hope this helps
Per
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Old 5th July 2015, 10:35 AM   #17
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Quote:
Originally Posted by AngelP View Post
Hi, sorry I don't have any schematics, but I just had read through on the Danish link S: THULE IA 50 - integreret balanceret forstærker

I don't know how good your Danish is, but from the comments it seems that a known thing about the early Thule's is that they are "electrolytic cap cookers". The bloggers advised that "all e-caps be replaced, starting with the most obvious/overheated, but be ready to go all the way to even replace the SMDs".

The thread ends with success by just replacing the 100uF e-lytes between the voltage regulators, and the amp came back into life. (For how long though, you may rightly ask yourself). Also, Thule did apparently admit to the design fault and offered a PCB upgrade for a mere DKK 1600.

Anyway, hope this helps
Per
thank you for this advice. Power amp sections of IA50, IA100, PA100, PA200 and those from the younger "Spirit" line are all similar and I know the Schemas. Concerning this models there are several threads here and any statements from me concerning "electrolytic cap cookers" and some more.
The asked amps seems to be completely other. There are only few devices produced from Anders Thule, so I think (expensive in manufacturing and cheap by purchasing. Therefore I want to know the schemas of this models. Maybe a Danish member from diyaudio can post the first posting here on the mentioned Danish forum.
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Old Yesterday, 06:50 AM   #18
AngelP is offline AngelP  United Kingdom
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Ok, why don't you contact Anders Thule directly? He's on Linkedin and now works at Oticon.
Most probably, he may still have them - or know someone who may.

Cheers,
Per
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