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Old 30th April 2002, 06:03 PM   #111
rmgvs is offline rmgvs  Netherlands
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Thijs,

There is nothing wrong with 2N3055's. It is mostly read from the meters that people think that they are obsolete. I've tried several types and brands in the JLH and ended with original old 2N3055's of Motorola. Don't use the everywhere available SGS Thomson devices because these do sound different for some reason. Better have old Motorola 2N3055 than new Thomson MJ 15001 of the like.

Of course you know the site of Geoff Moss? Something like www.gmweb.co.uk (else search for Linsley Hood on google, you will find it). This site is dedicated entirely to the Hood amplifier.

Rudy
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Old 30th April 2002, 06:08 PM   #112
rmgvs is offline rmgvs  Netherlands
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And DO convert the thing to the DC version in due time, The difference is worthwile. Look at the site of Matthijs Tinholt (can be seen as a link on the site of Moss).

Both Matthijs and myself have built both AC and DC versions and were immediately convinced of the better quality of the DC version. But: keep with the original design rearranged for DC operation (see site for schematics) and do not go for the later 1996 design (that's my opinion, and tried them all).

Both Matthijs and myself live in the Netherlands.

Rudy
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Old 30th April 2002, 06:33 PM   #113
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Angry Since rmgvs is lazy

I think the correct link is:

http://home.wish.net/~tinholt/
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Old 30th April 2002, 09:56 PM   #114
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Thanks all! .. this makes me wanna light my soldering iron right away ..


Greetings,
Thijs
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Old 3rd June 2002, 07:40 PM   #115
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Default wiring example

Hi!
Visit my online photo album called: "JLH 1996"

http://www.picturetrail.com/chrisma/876720



This is my first ever DIY amp(diy anything really), good example of not to do.

Chris
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Old 4th June 2002, 07:00 AM   #116
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Hey is not that bad! Wait 'till you see mine...

BTW Veroboard rocks!
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Old 11th July 2002, 06:28 PM   #117
ergo is offline ergo  Estonia
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Default Finally had some pictures taken of my JLH'96 variation

Featuring slightly modified schematic an my work in progress LC filtered power supply....

Ergo
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Old 11th July 2002, 06:41 PM   #118
paulb is offline paulb  Canada
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Beautiful. I like the wood cabinet.
What output transistors did you use?
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Old 11th July 2002, 06:56 PM   #119
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Default JLH

The Class-A Amplifier Site

http://www.gmweb.btinternet.co.uk/

with lots of JLH stuff

somebody mentioned this in previous post here

groman
likes the heat of currents
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Old 12th July 2002, 04:58 PM   #120
ergo is offline ergo  Estonia
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I'm using Sanken pair 2SC2837 / 2SA1186

These need an additional cap though. I have a 120p cap between Tr3 collector and Tr4 emitter for stability as these transistors are in way different league for their ft.

Ergo
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